Transactions and Proceedings

of the PaJaeontological Society of Japan

New Series No. 96

Palaeontological Society of Japan December 20, 1974 Editor: Hiroshi UJIIE Associate editors: Ikuwo OBATA, Yasuji SAITO

Officers for 1973 - 1974

Honorary President: Teiichi KOBAYASHI President: Tatsuro MATSUMOTO Councillors (*Executive): *Kazuo ASAMA, Kiyoshi ASANO, *Kiyotaka CHINZEI, *Taka· shi HAMADA, *Tetsuro HANAI, Kotora HATAI, *Itaru HAY AMI, *Kametoshi KANMERA, Tamio KOT AKA, *Tatsuro MATSUMOTO, Tokio SHIKAMA, Tsugio SHUTO, *Yokichi TAKAYANAGI, Toshimasa TANAI, *Hiroshi UJIIE Executive Committee: General Affairs: Itaru HAYAMI, Yasuhide IWASAKI Membership: Kazuo ASAMA, Kazuhiko UEMURA Finance: Takashi HAMADA, Naoaki AOKI Planning: Tetsuro HANAI, Saburo KANNO Publications Transactions: Hiroshi UJIIE, Ikuwo OBATA, Yasuji SAITO Special Papers: Kametoshi KANMERA, Ienori FUJIY AMA, Tomowo OZAWA " Fossils" : Yokichi T AKAYANAGI, Toshiaki TAKAYAMA

All communications relating to this journal should be addressed to the PALAEONTOLOGICAL SOCIETY OF JAPAN c/o Business Center for Academic Societies, Japan. Yayoi 2-4-16, Bunkyo-ku, Tokyo 113, Japan Sole agent: University of Tokyo Press, Hongo, Tokyo Trans. Proc. Palaeont. Soc. Japan, N. S., No. 96, pp. 411-426, pI. 56, December, 20, 1974

639. CARBONIFEROUS CONODONTS FROM THE ITSUKAICHI DISTRICT, TOKYO, JAPAN*

HISA YOSHI IGO

Department of Geoscience, University of Tsukuba, Nihari.gun, Ibaraki 300-31

and

FUMIO KOBAYASHI

Institute of Geology and Mineralogy, Faculty of Science, Tokyo University of Education, Tokyo 112

JiO?:'ffll1l.Bm:ttl!.1JO)El!R*::1 / F:/ r: 1l.Bm~t1JK.lt, Vt;*~x.I?;h,-c\"t-:J: IJ~<::=: 1!l:*~El!R*tM};{ffL-C\":Q;:'ciJ~~IjIj/jLko 4@Ht, ::;::tR, l'ii!:;f;:, :j;[.tRtJ:cK·7.t;{ff-t:QE ER:!6-~7- -V - rIC 13""i;h,:Q El!R*O) ::1 / r:/ r ~~Gtx; L, -to)1liff\;~~1fB 1.:t-:o ::1 / r:/ r f¥ ~ltJ1jfIB=-"":);5IJ, IB;JtIlO)tO)lt~b¥:0)7-.:r.7-3<" -ME :toJ:Lf 3 - P ://{O)""f$ :rA-lvMEO) t O)vc%jJt ~;h" J1jf;Jtllo) t 0) It ~t*O)"":/ ~/jv/~ =- 7 *Jll""f$ C 3 - P :/ /{O)J::$-.r A -IV MElcJt~--e~:Qo tJ::toliZl:m~ (1973), tmJE8~- (1973) O)¥an-: l::..-1i-i!to)JUi"@~~~..@ ~IH$~I?O)IB;JtIlO)::1 / F:/ rf¥~~{ftJ: 5iJ;, lliff\;ffiflilc"":)\"-Clt-3&~--r, ~l?ltJji].s;; I?O)J!MJ: 1J~~J1jfL\"Iliff\;U6ffifliLko ~#lll~~. IH*)(~

graphy and geologic structure. He Introduction . proved more extensive distribution of Triassic and Carboniferous strata than Upper Paleozoic and Mesozoic forma· the previously published geologic maps. tions occur as several narrow belts Many Triassic conodonts were found in trending northwest and southeast in the the chert members which were treated Itsukaichi district, southeastern part of as the Permian by the previous authors. the Kanto Massif. FUJIMOTO (1932,1936), KOBAY ASH! also collected many Carboni­ SAKAGAMI (1956, 1958) and others con· ferous fusulinaceans and conodonts from :::. i.e.': .;eology and some paleontolo­ limestones outcropped at Yozawa, Mi­ gical aspect of this district, but detailed tsuzawa, Tamanouchi, Takimoto, Mitake stratigraphy and paleontology remained and Hossawa (Text-fig. 1). These limes­ unknown. Comprehensive field study of tones bear primitive fusulinaceans, such the Itsukaichi district has been made as Millerella, Eostaffella, and Profusuli­ by the junior author during the spring nella. field season of 1971-1972. As a result, Limestone exposed at Mitsuzawa, ap­ he found many new evidence of strati- proximately 3 km northwest of Itsukai­ * Received March 2, 1974: read January chi is particularly noteworthy because 16, 1973 at Sendai. of the occurrence of interesting bryo-

411 412 Hisayoshi leo and Fumio KOBAYASHI

Hossawa• h;."j t-----J-I~--+-\-36'

Hlnod,yam. ) A ~ J 902 Takimoto 14t ------/ . Mltsuzawa .: Locality of Carboniferous Fossil 5

ASOUc'lA • 788 ~~ /";"\ Tamanouchi

Komiyosan A 810

Itsukaichi ~ I (km.) MusaShii'U~ichi

Text-fig. 1. Map showing the localities of Carboniferous fossils in the Itsukaichi district. zoans, corals, brachiopods, mollusks and age. conodonts. SAKAGAMI (1972) was the The purpose of the present paper is first to recognize them as the Lower to discuss geologic age and descriptions Carboniferous. He described Mourlonia of the conodonts from Mitsuzawa, Taki­ and concluded that this gastropod is moto and Hossawa. These conodonts very similar to the specimens from are very important to settle the cono­ Uzura, Akiyoshi Limestone (SAKAGAMI, dont biostratigraphy near the boundary 1973). Also, YANAGIDA (1973) described between the Lower and Middle Carboni­ several brachiopods and advocated that ferous of Japan. Detailed geologic ob­ the fauna is apparently of Visean in servations of this district will be pre- 639. Carboniferous Conodonts from Itsukaichi 413

sen ted at a later date. ting thin layers of limestone in middle Acknowledgements: Here the authors part ...... 15 m thick. record their cordial thanks to Dr. To­ shio KOIKE of Tokyo University of Both the upper and lower limits of Education and Mr. Hisaharu IGO of this sequence are in contact with Tri­ Tokyo Gakugei University for their assic sediments by pronounced faults. discussion in the field and laboratory. These lithologic units trend to N30·W The junior author's field survey was and dip 40· to the northeast. The lower carried out under the supervision of tuff is red, green and partly variegated Drs. Mosaburo KANUMA and Atsushi and becomes calcareous upward. The ISHII of Tokyo Gakugei University. Dr. calcareous part of this tuff comprises Haruyoshi FUJIMOTO, Professor Emeritus fragments of crinoid stems, other cal­ of Tokyo University of Education and careous materials and oolites. Nodular Dr. Sumio SAKAGAMI, Professor of Ehime shaped limestones are various in shape University gave us valuable field infor­ but mostly subspheroid. Averaged dia­ mation. Miss Hiromi KANASUGI, Messrs. meter of them is about 30 cm. They T. KUSANO, M. GOKAN and N. MATSUSE contain abundantly crinoid stems, corals, of Tokyo Gakugei University helped our bryozoans, gastropods, brachiopods and field survey and laboratory work. The rarely goniatites. Fossils described by authors are grateful to these individuals. SAKAGAMI (1973) and YANAGIDA (1973) We are also indebted to the Chichibu were collected from this level (158B in Cement, Buko Mining and Mitsubishi Text-fig. 2). Limestones yielding corals Kogyo Cement Companies, Ltd. for and bryozoans have almost the same generous financial assistance. lithology. The corals are Lithostrotion (Siphonodendron), Diphyphyllum and other Rugosa. These corals are cemented Geologic Setting mostly by fine-grained lime mud, subor­ The Mitsuzawa Limestone outcrops dinate fossil fragments and detrital along a small valley in the south of calcite and partly filled with clear Mitsuzawa. The following succession sparry calcite. Brachiopodal and gas­ is measured along the Mitsuzawa Valley tropodallimestones are highly bioclastic. in descending order. These fossils are cemented by fairly large fragments of biogenetic calcite Chert; thin-bedded, pale gray, green and which are mostly originated from partly reddish .. more than 20 m thick. crinoid. Interstitial cement of clean Limestone; well-bedded, intercalating calcite is also recognized, and partly thin layers of chert and dolomitic interlocking these fragments of bioge­ layers ...... 9 m thick. netic calcite. Chert; bedded, pale gray and reddish The upper limestone beds are almost ...... 7m thick. barren in megafossils except for small Tuff; red, green and variegated, calca­ fragments of crinoid and shells,. but reous, intercalating nodular lime­ they contain smaller foraminifers and stones and limestone layers, upper other microfossils. The lower part of part grades laterally into chert .... this limestone is thin-bedded, laminated ...... 8m thick. and intercalating thin dolomitic layers. Tuff; red, partly variegated, intercala- This rock consists of fine-grained lime 414 Hisayoshi IGO and Fumio KOBAY ASH! mud with the admixture of smaller fora­ of Mitake Railway Station. Limestone minifers and fragments of biogenetic layer interbedded with green chert, calcite which are mostly echinoderms. about 10-15 cm in thickness yields nu­ Minute shell fragments in varying abun­ merous conodonts. These conodonts are dance are also recognized, but what the same with those from the type sec­ kind of fossil shells they represent is tion of the Mitsuzawa Limestone. difficult to determine. Small dolomitic rhombs are scattered in the particular laminae as single individuals. These Appraisal of Conodont Fauna components frequently show graded lamination in a small scale. Conodonts were recovered from 1 to The upper remainder of this limestone 2 kg limestone samples by ordinary unit intercalates chert layers of about acetic acid method. Samples embedded 10 cm thick. Lithology of this part of in chert were observed by very thin limestone is almost similar to the lower slices and chips under the transmitted part, but dolomitized and laminated light. Hydrofioric acid was supplemen­ parts become obscure. Chert layers tarily used for chert samples. All of the intercalated within this limestone are samples shown in Text-fig. 2 are pro­ sometimes discontinuous and their upper ductive. The assemblage of conodont and lower surfaces show irregular wavy does not show any remarkable difference bedding plane. throughout the calcareous facies of the The uppermost chert is thin-bedded, measured section, but each species about 5 to 10 cm thick, intraformation­ varies in individual abundance. ally folded, pale gray, green and partly The following species are discrimi­ reddish. This chert unit yields abun­ nated from 158A through 158G, namely, dant radiolarian remains and conodonts Cavusgnathus regularis YOUNGQUIST and from the particular levels. MILLER, Gnathodus bilineatus (ROUNDY), The above mentioned sequence of the Gnathodus commutatus (BRANSON and Mitsuzawa Valley can be traced later­ MEHL), Gnathodus nodosus BISCHOFF, ally, but limestone thins abruptly both Gnathodus sp., n. sp. (?), Ligonodina sp., northwest and southeast and is replaced Hindeodella spp., Ozarkodina sp. by chert. At Takimoto, about 800 m Among them, Gnathodus bilineatus, G. north of Mitsuzawa, this chert member commutatus, and G. nodosus are predo­ is about 40 m thick and intercalates minant species. Gnathodus commutatus small limestone lenses or lentils. in the ranges throughout the calcareous facies various levels. Erratics of limestone of the measured section, but it is par­ derived from this member yield cono­ ticularly abundant in the lower levels donts but are barren in megafossils. (158A, 158B, 158C). This well-known Conodonts are well-preserved and more species has been repeatedly described numerous than the type section. Lime­ from the Chesterian of North America ston~ at Takimoto may represent the (COLLINSON et al., 1971 and others) and condensed sequence in contrast with the Visean to Lower Namurian in the biohermal or reef-like deposition at Germany (MEISCHNER, 1970 and others), Mitsuzawa. Belgium (HIGGINS and BOUCKAERT,1968), . Further northwestern extension of England (RHODES et al., 1969 and others) limestone occurs at Hossawa, the south and elsewhere. It is also present in the 639. Carboniferous Conodonts from Itsukaichi 415

20

Text-fig. 2. Columnar section measured along the Mitsuzawa Valley, showing the stratigraphic distribution and abundance of conodonts. Solid circle: abundant (more than 10 specimens per kg) ; open circle: rare (less than 10 specimens per kg).

Nagoe Formation of the Atetsu Lime­ sisted that the species survived into the stone (KOIKE, 1967), basal part of the Permian in Japan. HAY ASH!'S identifica­ Akiyoshi Limestone Group (Hisaharu tion, however, is apparently erroneous IGo, 1973) and the lowest part of the Omi and his Gnathodus commutatus is a ho­ Limestone (WATANABE, personal comm). meromorphic different species of Gna­ HAY ASH! (1971) reported the occurrence thodus (Hisayoshi IGo, 1972). Moreover, of this species from the Permian Kuzuu according to the authors' numerous un­ Limestone, Tochigi Prefecture and in-' published data, this species never co- 416 Hisayoshi leo and Fumio KOBAYASHI exists with the typical lowermost Penn­ Nagoe Formation of the Atetsu Lime­ sylvanian species of conodont in Japan. stone in Japan. As will be discussed Therefore, the upper limit of this species later, the present specimens show con­ almost coincides with the case in Europe siderable variation in the development and North America. of nodes. Gnathodus nodosus is also common in Gnathodus sp. (n. sp.?) is rarely yielded the Mitsuzawa Limestone associated from 158A, 158D, 158E and 158G. This with Gnathodus commutatus. This spe­ species resembles Gnathodus dr. roundyi cies is abundant in 158A, 158B, 158C GUNNELL described by KOIKE (1967) and 158D and is rather sporadical in from the Lower Pennsylvanian Kodani other samples. Gnathodus nodosus is Formation of the Atetsu Limestone. It widespread in Europe, and it first ap­ is also similar to Gnathodus roundyi pears from the Upper Visean and the GUNNELL described from the Morrowan middle part of Cu mj3 and extinguishes of USA by DUNN (1970). MERRILL (1972) in the upper part of the Lower Na­ treated the mentioned species as a new murian (E 2c). Typical Gnathodus no­ species and proposed Neognathodus me­ dosus bears one node on the upper dadulitimus MERRILL. Gnathodus girtyi surface of both outer and inner sides intermedius GLOBENSKY described from of the cup. Numerous specimens reco­ the. Windsor Group of Canada is slightly vered from the Mitsuzawa Limestone related to the present Gnathodus sp., n. have some variations in the develop­ sp. (?). It differs from GLOBENSKY'S ment of node on the cup. The nodes (1967) Canadian subspecies in fused of the most of our specimens are more carina and other ornamentation of the than one and rather irregularly disposed platform. compared with the type species des­ Cavusgnathus regularis is frequently cribed from Germany (BISCHOFF, 1957). fragmental and rare in this section, but Based on the specimens from the Griotte it is rather common at Hossawa. This of Northwest Spain, HIGGINS (1962) species is known from the entire part proposed Gnathodus commutatus multi­ of the Chesterian of North America. nodosus for this type of G. nodosus. The conodont fauna recovered from Therefore, the present ones are re­ the Mitsuzawa Limestone is apparently ferable to G. multinodosus rather than equivalent to the fauna from the Ches­ G. nodosus. This difference, however, terian of the North American Missis­ seems to be continuous and the authors sippian and also to the Upper Visean reserved the validity of G. multinodosus. to Lower Namurian of Europe. The Gnathodus bilineatus is also one of the faunal aspect near the boundary be­ most common species in the present tween the Visean and Lower Namurian fauna, and it is yielded from 158A to of Europe was discussed by HIGGINS 158G, but is particularly abundant in (1961,1962,1967), HIGGINS and BOUCKAERT 158A, 158B, 158C and 158D. This spe­ (1968), RHODES et al. (1969), BOUCKAERT cies is a well-known species in the and HIGGINS (1970) and others in Europe. Upper Visean to Lower Namurian of According to their studies, the Upper Europe and the Chesterian of North Visean (V3c) or D3 is characterized by America, and it has been known from Gnathodus bilineatus, G. girtyi girtyi, G. the lowermost part of the Akiyoshi girtyi collinsoni, G. commutatus, G. no­ Limestone, Omi Limestone and the dosus and others. The fauna of the 639. Carboniferous Conodonts from Itsukaichi 417 lowest Namurian (E2a) is poorly known (1965) studied conodonts collected from in Belgium but it comprises Gnathodus Yobara and they showed that the fauna bilineatus, G. girtyi and the first occur­ is apparently Lower Pennsylvanian or rence of Gnathodus noduliferus. The Upper Namurian. As will be discussed faunas of E2b-E2c are characterized later, the Mitsuzawa Limestone charac­ by Gnathodus bilineatus, G. girtyi, G. terized by Gnathodus bilineatus, G. no­ nodosus and G. commutatus. HIGGINS dosus, and G. commutatus is conformably (1961) reported the Lower Namurian overlain by chert which yielding ap­ conodonts from North Staffordshire, parent Lower Pennsylvanian or Upper England. These conodonts are almost Namurian conodonts. From the above the same with the lower part of the mentioned evidence, we are inclined to type Namurian in Belgium. conclude that the geologic age of the As cited above, there are no remark­ Mitsuzawa Limestone is Late Chesterian able faunal change between the highest of North America and Early Namurian Visean and the basal Namurian except rather than Late Visean of Europe. for questionable occurrence of Gna­ The other conodont fauna was found thodus noduliferus. Therefore, it is un­ in chert superposed above the Mitsu­ certain that the Mitsuzawa conodont zawa Limestone in the type section. fauna indicates Upper Visean or Lower The following conodonts are discrimi­ Namurian. However, the following nated from 158H, 158J and 158P. These paleontological and stratigraphical evi­ include Gnathodus sp., n. sp. (?), Gon­ dence may allow to discuss more de­ dolella fujimotoi IGO and KOBAYASHI, n. tailed correlation of the Mitsuzawa sp., Oxinagnathus corrugatus (HARRIS fauna. Our present fauna is entirely and HOLLINGSWORTH), Gnathodus sp., lacking Gnathodus girtyi and its sub­ Ozarkodina sp., and Hindeodella spp. species which are rather common in This fauna is quite similar to the fauna European Upper Visean. Gnathodus from the calcareous facies of the upper nodosus collected from the present sec­ part of the Takimoto section. tion is multinodosus-type which is pro­ Conodonts obtained from Takimoto bably descendant modification of typical consist of two dissimilar faunas which G. nodosus. Some of our specimens are derived from the different levels. identified as Gnathodus bilineatus are Unfortunately, however, precise stra­ slightly similar to G. bilineatus bollan­ tigraphic relationship between two densis HIGGINS and BOUCKAERT rather levels is unknown. The older one was than the typical G. bilineatus. G. bili­ recovered from fine-grained gray lime­ neatus bollandensis was described from stone intercalated as the lentils in chert. E2b2, E2b3, E2c and HI of the type It has completely the same assemblage Namurian. of conodont elements with the type sec­ SAKAGAMI (1973) and YANAGIDA (1973) tion of the Mitsuzawa Limestone. The stated that their brachiopod-gastropod same assemblage of conodonts is also faunas from 158B are equivalent to obtained from limestone layers inter­ the Yobara fauna of the Akiyoshi Lime­ bedded with chert at Hossawa. stone. Rich brachiopods from Yobara The younger fauna from Takimoto is were worked out by YANAGIDA (1962, distinctive and consists of the following 1965) who concluded that the geologic species: Gnathodus nagatoensis IGO and age is of Late Visean. IGO and KOIKE KOIKE, Gnathodus opimus IGO and KOIKE, 418 Hisayoshi leo and Fumio KOBAY ASH! fauna and is similar to Idiognathodus humerosus DUNN and I. parvus (DUNN) which have been described from the upper part of the Morrowan in North America. Gnathodus opimus and Gna­ thodus nagatoensis are rare in the pre­ sent fauna, but they are charac­ teristic species of the Yobara fauna of the Akiyoshi Limestone (IGO and KOIKE, 1965). Gondolella fujimotoi is fairly common and is related to Gondolella sp. A described from the Kodani Formation of the Atetsu Limestone (KOIKE, 1967). Recently, similar species, Gondolella gymna, has been proposed by MERRILL and KING (1971) from the Lower Penn­ 10 sylvanian of Illinois, USA. Although the specimens are fragmental, the oc­ currence of Gnathodus cfr. bassleri bas­ sleri is noteworthy, because this species is an excellent indicator of the Lower Pennsylvanian in North America (LANE et al., 1972). This species is also rather wide-spread in the Japanese Carboni­ o ferous associated with Eostaffella and m Text-fig. 3. Generalized columnar sec­ other primitive fusulinaceans (Hisayoshi tion measured at Takimoto and Hossawa, IGo, 1972). The present fauna from Ta­ showing distribution and abundance of cono­ kimoto is unquestionably younger than donts. Legend is the same with Text-fig. 2. Gnathodus commutatus-G. bilineatus-G. nodosus fauna and is apparently similar Gnathodus Sp., Gnathodus cfr. bassleri to the Morrowan of USA and Upper bassleri (HARRIS and HOLLINGSWORTH), Namurian of Europe. ldiognathodus sp., Oxinagnathus cor­ In conclusion, the Carboniferous cono­ rugatus (HARRIS and HOLLINGSWORTH), dont fauna from the Itsukaichi district Gondolella fujimotoi IGO and KOBAYASHI, comprises two distinct assemblages, n. sp., Ozarkodina sp., and Hindeodella such as the older Gnathodus commutatus sp. -G. bilineatus-G. nodosus fauna and Oxinagnathus corrugatus is fairly younger Oxinagnathus corrugatus-Idio­ abundant in this fauna. This species gnathodus sp. fauna. The former one has been reported from the Lower Penn­ represents the majority of the Mitsu­ sylvanian Morrowan of North America zawa Limestone and its equivalent at (DUNN, 1970, etc.) and the Kinderscou­ Takimoto and Hossawa and is correlated tian (Rl) of the type Namurian of to the Lower Namurian and Upper Belgium (HIGGINS and BOUCKAERT, 1968; Chesterian. The latter fauna is found BOUCKAERT and HIGGINS, 1970). Idiogna­ in the upper chert beds of the type thodus sp. is less common in the present section of the Mitsuzawa Valley and 639. Carboniferous Conodonts from Itsukaichi 419 also in the calcareous facies of the GRAVES, 1941, pI. 2, figs. 13-17; KOIKE, upper sequence at Takimoto. This fauna 1967, p. 300, pI. 1, figs. 22-25. is considered to represent a part of the Streptognathodus wapanuckensis, ELIAS, 1956, Lower Pennsylvanian or Upper Namur­ p. 120, pI. 3, figs. 67-69; WIRTH, 1967, ian conodont faunas. p. 236, pI. 20, figs. 11, 13. Gnathodus bassleri, LANE, 1967, p. 934, pI. 120, figs. 1-5, 9-15, 17; pI. 121, figs. 6, Systematic Paleontology 9; pI. 123, figs. 1-6; WEBSTER, 1969, p. 29, pI. 5, figs. 9, 14, 15. Genus Cavusgnathus HARRIS Gnathodus cfr. girtyi, HIGGINS, and Bou­ and HOLLINGSWORTH CKAERT, 1968, p. 32, pI. 2, fig. 9, pI. 5, figs. 5, 6. Cavusgnathus regularis YOUNGQUIST Neognathodus bassleri, DUNN, 1970, p. 336, pI. 64, figs. 1, 12-14, text-fig. 9F. and MILLER Neognathodus bassleri, bassleri, MERRILL and PI. 56, figs. 4, 5 KING, 1971, p. 659, pI. 76, figs. 11, 12; MERRILL, 1972, p. 822-823, pI. 71, figs. Cavusgnathus regularis YOUNGQUIST and 16-19. MILLER, 1949, p. 619, pI. 101, figs. 18- 23; REXROAD, 1957, p. 17, pI. 1, fig. 7; Remarks :-This species was fully des­ REXROAD, 1958, p. 17, pI. 4, figs. 6-11; cribed by MERRILL (1972). The present REXRAOD and BURTON, 1961, p. 1152, pI. forms are fragmentary and no complete 138, figs. 10-12; THOMPSON and GOEBEL, specimens are obtained. However, their 1963, p. 22, pI. 1, fig. 3, 12; REXROAD characteristic ornamentation consisting and COLLINSON, 1963, p. 9, pI. 1, figs. 26, of three longitudinal rows is distinct to 27; REXRAOD and FURNISH, 1964, p. 670, identify with Gnathodus bassleri bassleri. pI. 111, fig. 6; REXROAD and NICOLL, 1965, p. 18, pI. 1, figs. 16, 17. DUNN (1970) proposed the genus Neogna­ thodus with Polyghathodus bassleri HAR­ Remarks :-The present material is RIS and HOLLINGSWORTH as its type very similar to the previously described species. He stressed that Neognathodus American ones and no remarkable dif­ bassleri evolved from Declinognathodus ference is observed. lateralis (HIGGINS and BOUCKAERT) and Occurrence :-Rare at Mitsuzawa and homeromorphic relation of Ganthodus Takimoto, common at Hossawa. and Neognathodus. MERRILL and KING Reg. nos. 22441, 22442, 22443. (1971) have questioned generic rank of Declinognathodus but they treat Neogna­ Genus Gnathodus PANDER, 1856 thodus as a distinct genus. ELLISON (1972), however, rejected the validity of Gnathodus dr. bassleri bassleri Neognathodus. We postponed to settle (HARRIS and HOLLINGSWORTH) generic problem herein. Occurrence :-Rare in limestone dis­ PI. 56, fig. 13. tributed at Takimoto. cfr. Reg. no. 22444. Polygnathus bassleri HARRIS and HOLLINGS­ WORTH, 1933, p. 198, pI. 1, fig. 13. Polygnathus wapanuckensis HARLTON, 1933, Gnathodus bilineatus (ROUNDY) p. 15, pI. 4, fig. 13. Gnathodus wapanuckensis, ELLISON and PI. 56, figs. 1-3. 420 Hisayoshi lGO and Fumio KOBAYASHI

Polygnathus bilineatus ROUNDY, 1926, p. 13, Occurrence :-Abundant t h r 0 ugh 0 u t pI. 3, figs. lOa-c. the type section of the Mitsuzawa Gnathodus bilineatus, HASS, 1953, p. 79, pI. Limestone and also at Takimoto and 14, figs. 25-29; REXROAD and FURNISH, Hossawa. 1964, p. 670; DUNN, 1965, p. 1148, pI. 140, Reg. nos. 22445, 22446, 22447, 22448, figs. 7-9; WIRTH, 1967, p. 205, pI. 19, 22449, 22450. figs. 6-9; KOIKE, 1967, p. 296, pI. 1, figs. 9-11; GLOBENSKY, 1967, p. 440, pI. 58, figs. 9, 13; IGO and KOIKE, 1968, p. 29, Gnathodus commutatus (BRANSON pI. 3, fig. 6; RHODES, AUSTIN and DRUCE, and MEHL) 1969, p.94, pI. 18, figs. 14-17; WEBSTER, 1969, p. 30, 31, pI. 5, figs. 11, 12; DUNN, PI. 56, figs. 6, 7. 1970, p. 330, 331, pI. 62, figs. 13, 14; MARKS and WENSINK, 1970, p. 258, pI. Spathognathodus commutatus BRANSON and 2, figs. 3a, b, 4. MEHL, 1941, p. 98, pI. 19, figs. 1-4. Gnathodus bilineatus bilineatus, HIGGINS and Gnathodus commutatus, REXROAD and BUR­ BOUCKAERT, 1968, p. 29, pI. 2, figs. 10, TON, 1961, p. 1153, pI. 39, figs. 1-3; 13; pI. 3, figs. 4-8, 10. HIGGINS and BOUCKAERT, 1968, p. 30, Gnathodus bilineatus modocensis REXROAD pI. 2, fig. 5; RHODES, AUSTIN and DRUCE, and FURNISH, 1964, p. 670, pI. 111, figs. 1969, p. 95, pI. 19, figs. 9-21; WEBSTER, 4, 5. 1969, p. 31, pI. 5, fig. 13. ? Gnathodus bilineatus schmidti MEISCHNER, Gnathodus commutatus commutatus, BISCHOFF, 1970, p. 1176. 1957, p. 23, pI. 4, figs. 2-6, 15; KOIKE, Gnathodus modocensis REXROAD, 1957, p. 30, 1967, p. 296, pI. 1, figs. 12-16; WIRTH, pI. 1, figs. 15-17; REXROAD, 1958, pI. 17, 1967, p. 206, pI. 19, figs. 10, 11; DUNN, pI. 1, figs. 1, 2. 1970, p. 331, pI. 62, figs. 11, 12; MARKS (Further synonyms: see RHODES, AUSTIN and WENS INK, 1970, p. 285, pI. 3, figs. and DRUCE, 1969, p. 94, 95) la, b. Gnathodus scotiaensis GLOBENSKY, 1967, p. 441, pI. 58, figs. 2-7, 10, 12. Remarks :-Our numerous specimens (Further synonyms: see RHODES, AUSTIN are quite identical to the previously and DRUCE, 1969, p. 95). described ones. There are, however, appreciable variations in the shape of Remarks :-As already noted by pre­ the platform and the disposition of the vious many authors, this species shows nodes on the outer lateral platform. In considerable but continuous variation. some specimens, the nodes on the outer The specimens in the present collections lateral platform are irregularly disposed. also show appreciable variations in the but in the other group these nodes have general form of the platform, develop­ tendency of longitudinal linear arrange­ ment of the carina and others. There ment. The former type somewhat re­ is remarkable difference between the sembles Gnathodus bilineatus bollandensis present and previously described ones HIGGINS and BOUCKAERT, but they bear in the lateral view of the carina. more numerous nodes than the Belgian Most of the specimens described by subspecies. However, the mentioned many authors have high carina even variations are continuous, and there is at the posterior end. The carina of the no obvious difference among the speci­ specimens, however, gradually decline mens collected from various levels of posteriorly. the present columnar sections. Occurrence :-Very abundant through- 639. Carboniferous Conodonts from Itsukaichi 421 out the type section of the Mitsuzawa 16a-20c. Limestone, and at Takimoto and Ho· (Further synonyms: see RHODES, AUSTIN ssawa. and DRUCE, 1969, p. 104, 105) Reg. nos. 22451, 22452, 22453, 22454, Remarks :-There is considerable but 22455, 22456. continuous variation in several biocha­ racters as in the same tendency re­ Gnathodus nagatoensis IGO and KOIKE ported by many previous authors. Most of the present specimens have more PI. 56, fig. 14, 15. than two nodes on both sides of the Gnathodus commutatus (BRANSON and MEHL) platform and similar to " multinodosus"­ nagatoensis IGO and KOIKE, 1965, p. 89, type described by HIGGINS (1962). pI. 9, figs. 1-8; KOIKE, 1967, p. 297, pI. Occurrence :-Yielded from the type 1, figs. 17, 18. section of the Mitsuzawa Limestone, limestone lenses exposed at Takimoto Rema1'ks :-Gnathodus nagatoensis was and Hossawa. originally proposed by IGO and KOIKE Reg. nos. 22459, 22460, 22461, 22462, as a subspecies of Gnathodus commu­ 22463, 22464, 22465. tatus. Its important distinction is the lateral view of the cup and carina. Two low nodes adjacent to the carina deve­ Gnathodus opimus IGO and KOIKE loped on the inner part of the cup in PI. 56, fig. 18. the full growth specimens. Unit is generally thinly constructed compared Gnathodus opimus IGO and KOIKE, 1964, p. with typical Gnathodus commutatus. The 189, pI. 28, figs. 15-18; IGO and KOIKE, authors are now inclined to believe that 1965 (partim), p. 89, pI. 9, figs. 1-4; the mentioned differences have specific KOIKE, 1967, p. 298, pI. 1, figs. 20, 21; value rather than subspecific. WEBSTER, 1969, p. 33, 34, pI. 5, figs. 19- Occurrence :-Rare in chert superposed 21. above the Mitsuzawa Limestone and also at Takimoto. Remarks :-The specimens collected Reg. nos. 22457, 22458. from this area are very similar to the original ones from the Omi Limestone. However, the present collections are Gnathodus nodosus BISCHOFF mostly small and immature specimens. Occurrence PI. 56, figs. 8-12. :-Rare in limestone lenses at Takimoto. . Gnathodus commutatus nodosus BISCHOFF, Reg. nos. 22466, 22467 . 1957, p. 23, 24, pI. 4, figs. 12, 13; HIGGINS, 1961, p. 213, pI. 10, figs. 7, 8; HIGGINS, 1962, pI. 2, fig. 19; KOIKE, 1967, p. 297, Gnathodus sp., (n. sp. ?) pI. 1, fig. 19; WIRTH, 1967, p. 207, 208, pI. 2, figs. 15-18; MARKS and WENS INK, PI. 56, fig. 17. 1970, p. 260, pI. 3, figs. 3, 4. Gnathodus commutatus multinodosus HIGGINS, Axis almost straight or slightly 1962, p. 8, 9, pI. 2, figs. 13-18. curved inward. Carina composed of Gnathodus nodosus, RHODES, AUSTIN and fused denticles and ridge-like. Cup DRUCE, 1969, p. 104, 105, pI. 19, figs. asymmetrical and expanded lanceolate 422 Hisayoshi Jeo and Fumio KOBAY ASH! in general outline. Inner platform stone and Takimoto. parallel with carina and separated from Reg. nos. 22468, 22469, 22470. it by a trough. Trough shallow in pos­ terior half and deepest at anterior part. Genus Gondolella STAUFFER At posterior end, node of inner plat­ form fused with carina. Rather high and PLUMMER, 1932 but narrow transverse nodes developed Gondolella fujimatoi Hisayoshi on inner platform. Outer side of cup slightly wider and shorter than inner IGO and KOBAYASHI, n. sp. side and subovate in outline. Margin PI. 56, figs. 20-23. of outer platform with fused nodes which are most prominent near mid­ Unit almost symmetrical and slightly point to anterior end. Blade long, arched, elongate lanceolate in outline almost equal length with cup and bears and tapering anteriorly. Carina com­ serrate denticles. Lower side of cup posed of 7 or 6 discrete denticles. Den­ strongly excavated. Lower side of ticles node-like and laterally not com­ blade grooved. pressed, erect or slightly directed pos­ Remarks :-This unidentified species teriorly. Upper surface of platform seems to be a new species or new sub­ smooth and lacking any ornamentation. species. Gnathodus cfr. roundyi GUNNEL Lateral furrow along carina shallow. described by KOIKE (1967, PI. 1, fig. 27, Cusp and denticles of anterior end non fig. 28) is similar to the specimens. larger than other dentic1es. Pit located It slightly resembles Gnathodus girtyi at posterior end, broadly flared and intermedius GLOBENSKY, but the present comparatively large, surrounded by one differs from his subspecies in iso­ flange. Basal groove well-developed lated nodes of the carina, fused nodes but shallow. Aboral keel slightly ele­ of the outer and inner platform at the vated and wide. posterior end of the cup of the latter. Remarks :-This species is similar to Also the outer cup of the present spe­ Gondolella n. sp. A described by MERRILL cies is lower than the inner. Gnathodus and KING (1971) from the lowest Penn­ bilineatus bollandensis HIGGINS and Bou­ sylvanian of Illinois, certain specimens CKAERT is also allied one. Not so lat­ of Gondolella bella STAUFFER and PLUM­ erally expanded outer platform, weaker MER described by KOIKE (1967) from the transverse ridge of the inner platform Atetsu Limestone, Japan. This new and fused nodes on the posterior part species differs from these species in of the cup of G. bilineatus bollandensis discreate node-like denticles and slightly differ from the present one. This form elevated aboral keel. Gondolella gymna also resembles Gnathodus roundyi des­ MERRILL and KING and Gondolella (?) cribed by several American authors and sp. A (KOIKE, 1967) are also similar now identified as Neognathodus bothrops species to this new species. Gondolella MERRILL (1972), bl!t the present material fujimotoi has shorter dentic1es and bears fused and continuous nodes of the lower and wider aboral keel and more carina and poorly developed ornamenta­ expanded platform. The specific name tion of the outer platform. dedicated to Dr. Haruyoshi FUJIMOTO, Occurrence :-Rare in various levels of Professor Emeritus of Tokyo University the type section of the Mitsuzawa Lime- of Education. 639. Carboniferous Conodonts from Itsukaichi 423

Occurrence :-Rather common in lime­ Idiognathodus corrugata HARRIS and HOL­ stone lenses at Takimoto and chert LINGSWORTH, 1933, p. 202, pI. 1, figs. 7, superposed above the Mitsuzawa Lime­ 8a, b. stone. Idiognathoides corrugatus, LANE, 1967, p. 939, Reg. nos. 22471 (Holotype), 22472, pI. 122, figs. 1, 2, 4-7, 9-11; DUNN, 1970, 22473, 22474, 22475 (Paratypes). p. 335, pI. 63, figs. 16-18, 25. Idiogrtathoides convexa, HIGGINS and Bou­ CKAERT, 1968, p. 39, pI. 4, fig. 3. Polygnathodella ouachitensis HARLTON, 1933, Genus Idiognathodus GUNNELL, 1931 p. 15, pI. 4, fig. 14; ELLISON and GRAVES, Idiognathodus sp. 1941, p. 10, pI. 3, figs. 8, 9; WIRTH, 1967, p. 223, pI. 20, figs. 12, 14; KOIKE, 1967, PI. 56, fig. 16. p. 309, pI. 3, figs. 3-5. Polygnathodella attenuata ELLISON and Free blade jointed platform in medial GRAVES, 1941, p. 8, pI. 3, figs. 11,13-15. position and continues posteriorly as a Polygnathodella fossata BRANSON and MEHL, low, fused, nodose carina for about half 1941, p. 103, pI. 19, figs. 27, 28. length of platform. Poster~or part of Polygnathodella tenuis CLARKE, 1960, p. 28, platform ornamented with parallel trans­ pI. 5, figs. 12, 13. verse ridges which shallowly grooved Polygnathode.lla spp. CLARKE, 1960, p. 28, pI. 5, figs. 11, 16. along the midline. Anterior part of platform having parapets which consist Remarks :-Well developed transverse of fused small nodes on both sides. Lobes ridges on the lanceolate platform, short consisting of a single or two rows of median groove and lacking of a carina nodes also developed on both sides of are diagnostic features of this species. anterior part of platform. The specimens occurred from the pre­ Remarks :-This unidentified species sent area show slight and graditional is similar to KOIKE'S (1967) Idiogna­ variation in the shape of the platform, thodus purvus (DUNN) illustrated on PI. length of the median groove and others. 3, figs. 14-17. DUNN'S (1970) Idiogna­ These differences were also recognized thodus cfr. magnificus STAUFFER and by the previous authors and considered PLUMMER is also allied ones. The as the intraspecific variation. present form is also related to young Occurrence :-Common in the upper forms of Idiognathodus delicatus GUN­ limestone . lenses at Takimoto and chert NELL, but it shows rather primitive member of Mitsuzawa. feature. Reg. nos. 22478, 22479, 22480. Occurrence :-Commonly yielded· from the upper limestone lenses at Takimoto. References Cited . Reg. nos. 22476, 22477. BISCHOFF, G. (1957): Die Conodonten-Stra­ tigraphie des Rhenoherzynischen Unter­ Genus Oxinagnathus ELLISON, 1972 karbons mit Beriicksichtigung der Wock­ lumeria- Stufe und der Devon/Karbon­ Oxinagnathus corrugatus (HARRIS Grenze. Hess. Landesamt Bodenforschung and HOLLINGSWORTH) Abh., vol. 19, p. 1-64, pIs. 1-6. BOUCKAERT, J., and HIGGINS, A. C. (1970) : PI. 56, fig. 19. The position of the Mississippian-Penn­ sylvanian boundary in the Namurian 424 Hisayosoi [co and Fumio KOBAYASHI

of Belgium. Les Congres, Colloques de HARL TON, B. H. (1933): Micropaleontology l' Univ. de Liege, vol. 55, p. 197-204. of the Pennsylvanian Johns Valley Shale BRANSON, E. B., and MEHL, M. G. (1941); of the Ouachita Mountains, Oklahoma New and little known Carboniferous and its relationship to the Mississippian conodont genera. jour. Pal., vol. 15, p. Caney Shale. Ibid., vol. 7, p. 3-29, pIs. 97-106, pI. 19. 1-7. CLARKE, W. J. (1960): Scottish Carboni­ HASS, W. H. (1953): Conodonts of the ferous conodonts. Edinburgh Ceol. Soc., Barnett Formation of Texas: U. S. Ceol. Trans., vol. 18, p. 1-31, pIs. 1-5. Surv. Prof. Pap. 243 F, p. 69-94, pIs. 14- COLLINSON, A. C., REXROAD, C. B., and THOM­ 16. PSON, T. L. (1971): Conodont zonation HARRIS, R. W. and HOLLINGSWORTH, R. V. of the North American Mississippian. (1933): New Pennsylvanian conodonts Ceol. Soc. America, Mem. 127, p. 353-394. from Oklahoma. Amer. jour. Sci., vol. DUNN, D L. (1965): Late Mississippian 25, p. 193-204. conodonts from the Bird Spring Forma­ HAYASHI, S. (1971): Conodonts from the tion in Nevada. jour. Pal., vol. 39, p. Nabeyama Formation, Kuzuu district, 1145-1150, pI. 140. Tochigi Prefecture, Japan. Earth Science, -- (1970) : Middle Carboniferous conodonts vol. 25, p. 251-257, pIs. 1, 2 (in Japanese). from western United States and phylo­ HIGGINS, A. C. (1961): Some Namurian geny of the platform group. Ibid., vol. conodonts from North Staffordshire. 44, p. 312-342, pIs. 61-64. Ceol. Mag., vol. 98, p. 210-224, pIs. 10- ELIAS, M. K. (1956): Upper Mississippian 12. and lower Pennsylvanian formations of -- (1962): Conodonts from the Griotte south-central Oklahoma. Amer. Assoc. Limestone of northwest Spain. Espana Petrol. Ceol., Spec. Vol., p. 56-134, pIs. 1-6. Inst. Ceol. y Min. Notas y Comun., 65, ELLISON, S. P. (1941): Revision of Pennsyl­ p. 5-22, pIs. 1-3. vanian conodonts. jour. Pal., vol. 15, p. -- (1967): The significance of conodonts 107-143, pIs. 20-23. in the Carboniferous of Europe. Subcomm. -- (1972): Conodont taxonomy in the Carbo Strat. Proc., p. 69-75. Pennsylvanian. Ceol. Pal. SB 1, p.127- - and BOUCKAERT, J. (1968): Conodont 146, pI. 1. stratigraphy and paleontology of the -- and GRAVES, R. M. (1941) : Lower Penn­ Namurian of Belgium. Expl. Cartes sylvanian (Dimple Limestone) conodonts Ceol. Min. Belgique, Mem. 10, p. 1-64, of the Marathon region, Texas. Missouri pIs. 1-6. Univ. Sch. Mines, Meta., Bull., Tech. IGo, Hisaharu (1973): Lower Carboniferous Ser., vol. 14, p. 1-13, pIs. 1-3. conodonts from the Akiyoshi Limestone FUJIMOTO, H. (1932): Geological study of Group, southwest Japan. Pal. Soc. japan, the southeastern part of the Kwanto Trans. Proc., N. S., no. 92, p. 185-199, pI. Mountainland. Ceol. Soc. japan, jour., 29. vol. 39, p. 430-457 (in Japanese). IGo, Hisayoshi (1972): Conodonts, as a new -- (1936): Stratigraphical and paleonto­ index fossil in Japan. jour. Ceogr., vol. logical studies of the Titibu System of 81, p. 12-21 (in Japanese). the Kwanto Mountainland. Pt. 1. Tokyo -- and KOIKE, T. (1964): Carboniferous Bunrika Daigaku, Sci. Rep., Sec. C, vol. conodonts from the Omi Limestone, 1, p. 157-188. Niigata Prefecture, central Japan. Pal. GLOBENSKY, Y. (1967): Middle and Upper Soc. japan, Trans. Proc., N, S., no. 53, p. Mississippian conodonts from the 179-193, pIs. 27-28. Windsor Group of the Atlantic provinces -- and -- (1965): Carboniferous cono. of Canada. jour. Pa!., vol. 41, p. 432-448, donts from Yobara, Akiyoshi Limestone, pIs. 55-58. Japan. Ibid., no. 59, p. 83-91, pIs. 8, 9. 639. Carboniferous Conodonts from Itsukaichi 425

-- and -- (1968): Carboniferous cono· meyeran Series) of Illinois, Indiana and donts from Kuantan, Malaya. Geol. Pal. Missouri. Illinois Geol. Surv. Circ. 388, Southeast Asia, vol. 5, p. 26-30, pI. 3. p. 1-26, pI. l. KOIKE, T. (1967): A Carboniferous suc­ -- and FURNISH, W. M. (1964): Conodonts cession of conodont faunas from the from the Pella Formation (Mississippian) Atetsu Limestone in southwest Japan. of South-central Iowa. Jour. Pal., vol. Tokyo Univ. Education, Sci. Rep., Sec. 38, p. 667-676, pI. 111. C, vol. 9, p. 279-318, pIs. 1-5. -- and NICOLL, R. S. (1965): Conodonts LANE, H. R. (1967) : Uppermost Mississippian from the Menard Formation (Chester and lower Pennsylvanian conodonts from Series) of the l11inois Basin. Indiana the type Morrowan region, Arkansas. Geol. Surv., Bull. 38, p. 1-28, pIs. 1, 2. Jour. Pal., vol. 41, p. 920-942, pIs. 119- RHODES, R. H. T., AUSTIN, R. L., and DRUCE, 123. E. C. (1969): British Avonian (Car­ --, SANDERSON, G. A., and VERVILLE, G. J. boniferous) conodont faunas, and their (1972): Uppermost Mississippian-basal value in local and intercontinental cor­ Middle Pennsylvanian conodonts and relation. Brit. Mus., Bull., Supplement southwestern United States. 24th IGC 5, p. 1-313, pIs. 1-3l. Rep. Sec. 7, p. 549-555. ROUNDY, P. V. (1926): The microfauna in MARKS, P. and WENSINK, H. (1970): Cono­ Mississippian formations of San Saba donts and the age of the "Griotte" County, Texas. Prof. Pap. U. S. Geol. Limestone Formation in the upper Aragon Surv., 146, p. 1-63, pIs. 1-4. Valley (Huesca, Spain). Koninkl. Nederl. SAKAGAMI, S. (1956): Fusulinids from the Akad. Wetensch., Ser. B. no. 3, p. 238- limestone conglomerate in the Yagooki 261, pIs. 1-4. Valley, Tamanouchi, Hinode-mura, Ni­ MEISCHNER, K. D. (1970): Conodont zona­ shitama-gun, Tokyo-to, Japan: Pal. Soc. tion in the German Carboniferous: 6th Japan, Trans. Proc., N. S., no. 24, p.259- Intern. Congo Carbo Strat., Compte Rendu, 265, pI. 37. vol. 3, p. 1169-1180. -- (1958): Conglomerates in the Upper MERRILL, G.K. (1972): Taxonomy, phylo­ Permian System of the northern part of geny and biostratigraphy of Neogna­ Itsukaichi, Tokyo-to, Japan. Jubilee Pub. thodus in Apparachian Pennsylvanian Prof. H. FUJIMOTO, p. 91-97 (in Japa­ rocks. Jour. Pal., vol. 46, p. 817-829, nese) . pIs. 1, 2. - (1972): Discovery of the Early Car­ - and KING, C. W. (1971): Platform boniferous Visean fauna from the conodonts from the lowermost Pennsyl­ Kwanto Massif. Geol. Soc. Japan, Jour., vanian rocks of northwestern Illinois. vol. 78, p. 216 (in Japanese). Ibid., vol. 45, p. 645-664, pIs. 75, 76. -- (1973): Early Carboniferous Visean. REXROAD, C. B. (1957): Conodonts from the faunas discovered from Mitsuzawa, Chester Series in the type area of sou­ southwestern part of the Kanto Massif, thwestern l11inois. Illinois Geol. Surv. pt. 1, Gastropods. Pal. Soc. Japan, Rep. Inv., 199, p. 1-43, pIs. 1-4. Trans. Proc., N. S., no. 90, p. 95-98. -- (1958): Conodonts from the Glen Dean THOMPSON, T. L., and GOEBEL, E. D. (1968) : Formation (Chester) of the l11inois Conodonts and stratigraphy of the Mera­ Basin. Ibid., 209, p. 1-27, pIs. 1-6. mecian Stage (Upper Mississippian) in -- and BURTON, R. C. (1961): Conodonts Kansas. Kansas Geol. Surv. Bull., 192, from the Kinkaid Formation (Chester) p. 1-56, pIs. 1-5. in l11inois. Jour. Pal., vol. 35, p. 1143- WEBSTER, G. D. (1969): Chester through 1158, pIs. 138-141. Derry conodonts and stratigraphy of -- and COLLINSON, C. A. (1963): Cono­ northern Clark and southern Lincoln donts of the St. Louis Formation (Val- Counties, Nevada. California Univ. Pub. 426 Hisayoshi IGO and Fumio KOBAYASHI

Geol. Sci., vol. 79, p. 1-121, pis. 1-8. - (1965): Ditto, Pt. 2: Ibid., vol. 16, p. WIRTH, M. (1967): Zur Gliederung des 113-142, pis. 25-28. hOheren PaHiozoikums (Givet-Namur) im -- (1973): Early Carboniferous Visean Gebiet des Quinto Real (Westpyrenaen) faunas discovered from Mitsuzawa, mit Hilfe von Conodonten. Neues Jahrb. southestern part of the Kwanto Massif, Geol. Pal. Abh., vol. 127, p.179-244, pis. Pt. 2, Brachiopods. Pal. Soc. Japan, 19-23. Trans. Proc., N. S., no. 90, p. 99-112, pis. YANAGIDA, J. (1962): Carboniferous bra­ 15, 16. chiopods from Akiyoshi, Southwest YOUNGQUIST, W., and MILLER, A. K. (1949) : Japan, Pt. 1. Kyushu Univ. Fac. Sci. Conodonts from the Late Mississippian Mem., Ser. D, vol. 12, p. 87-127, pis. Pella beds of south-central Iowa. Jour. 14-21. Pal., vol. 23, p. 617-622, pI. 101.

Hossawa 11- iR Takimoto ~ :;$: Itsukaichi Ii. 13 m Tamanouchi .:E / Ii'J Mitake r.m HT Yozawa ~ iR Mitsuzawa -= V~

Explanation of Plate 56

All figures enlarged 40 times Figs. 1-3. Gnathodus bilineatus (ROUNDY) 1, 3, upper views; 2, lower view. Figs. 4, 5. Cavusgnathus regularis YOUNGQUIST and MILLER Lateral views. Figs. 6, 7. GnathiJdus commutatus (BRANSON and MEHL) 6, upper view; 7, lower view. Figs. 8-12. Gnathodus nodosus BISCHOFF 8, upper view; 9, lower view of the same specimen; 10, lateral view; 11, 12, upper view of "multinodosus-type". Fig. 13. Gnathodus efr. bassleri bassleri (HARRIS and HOLLINGSWORTH) Upper view of a fragmentary specimen. Figs. 14, 15. Gnathodus nagatoensis IGO and KOIKE Upper views of two small specimens. Fig. 16. Idiognathodus sp. ·Upper·view .. Fig. 17. Gnathodus sp., n. sp. (?) Upper view. Fig. 18. Gnathodus opimus IGO and KOIKE Upper view. Fig. 19. Oxinagnathus corrugatus (HARRIS and HOLLINGSWORTH) Upper view. Figs. 20-23. Gondolella /ujimotoi Hisayoshi IGO and KOBAYASHI, n. sp. 20, lateral view; 22, upper view; 23, lower view of the holotype; 21, upper view of an immature specimen. lco and KOBAYASHI: Carboniferous conodonts from ltsukaichi Plate 56 Trans. Proc. Palaeont. Soc. Japan, N. S., No. 96, pp. 427-432, December 20, 1974

640. A JURASSIC AMMONITE FROM NEAR INUYAMA, NORTH OF NAGOYA*

T ADASHI SATO

Department of Geoscience, University of Tsukuba, Nihari-gun, Ibaraki 300-31

~~]!i!;:;R: 1.lj[P' #ili:;6, i? l¥: L- t::. :/;:L '7 ttl~E: )tLlrflnJl!jjl!j O)~t* 500 m t;:: a.; 7.> IJ\~ 0) '/ Iv I- ;6-;6, i?l¥: L- t::.~E~;mJlll(; L-t::.o Perisphinctidae t;::~i' 7.> Choffatia (Subgrossouvria) sp. -ea.;!J, 1:/ r . :t:3fn:lt!!~t;::!A <~;(Pi'7.>~ c:OO~) -ea.;7.>o l¥:ffljli\t;6~t. O)/J\~P:lt;:: a.; 7.> t. c ft?il~-e, VJ:-::>"L t. t. t;:::/;:L '7 *1'j:I$tJ:\'\ L-J:$;6~a.; 7.> t. C ;6'?il;6,taJ:-::>t::.o t. O)l¥: fflt;::J:-::>"L, P:I*O):/;:L'7ttlff;MO)ti:lt!!l!!.ft*l\Iit;::i:l!c~~;h,7.> t. c~~IUIftiL.t.:o fti:ili 1£

The occurrence of a Jurassic ammonite locality is at Higuchidani in Muikamachi, from a small valley near Inuyama, north Shimane Prefecture (IMAMURA, NUREKI of Nagoya, is rather well known among and OKIMURA, 1966) ; here the ammonites those who are interested in the Japanese are collected from the river float and Jurassic. The first report of this ammo­ the beds of origin have not been es­ nite was that of FUJII and MIYAKAWA tablished. in 1953, unfortunately in the form of a These two localities and the one near mimeograph. In the same year, MATSU­ Inuyama are all in the Yamaguchi MOTO noted its occurrence briefly (1953, Terrain (KOBAYASHI, 1941), which had p. 358) in published form. The discovery supposedly been folded and partly meta­ was also briefly mentioned by SATO morphosed before Upper Triassic or, (1962, p. 8-9) based on an onH communi­ locally, Lower Jurassic. Recent strati­ cation from Prof. MATSUZAWA, and re­ graphic work on this terrain is clarify­ ported in more detail by MIZUT ANI (1964, ing the wide development of Middle­ p. 42). Upper Traissic strata, dated by cono­ Recently, Jurassic ammonites have dont faunas found in the chert and been reported from beds previously limestone beds (e. g., IGo, 1972). believed to have been Paleozoic at two The newly dated Jurassic beds seem other localities in the Yamaguchi Terrain to have been folded together with the of Inner** Japan. One locality is near Paleozoic and Triassic strata, except Mashiko, east of Utsunomiya (SUZUKI that there remains some uncertainty and SATO, 1972) in finely laminated black about Higuchidani beds; therefore a silty shale, the age of which has not more precise dating of these beds has definitely been determined. The other been eagerly awaited. The ammonite specimen discovered at * Received March 18, 1974; read June 15, 1974, at Osaka. Inuyama was deposited in Nagoya ** The term Inner Japan is used for a University (Institute of Earth Sciences); tectonic belt north of the Median Tectonic in order that it might be describe4 for Line (NAUMANN, 1885). pu blic refererice, Prof. Em: T. KOBA'y ASHI . . .·'.t 427 428 Tadashi SATO (University of Tokyo), Prof. Em. I. yama City (Fig. 1). It was found in 1951 MATSUZAWA (Nagoya University), and by Mr. O. SENGOKU, then a school boy, Prof. T. KIMURA (University of Tokyo, who happened to be playing there. Mr. formerly of Nagoya University) arranged T. SENGOKU, his father, brought it to for study of the specimen. Prof. MIZU­ the Institute of Earth Sciences of Nagoya TANI (Nagoya University) kindly sent University where it is now deposited and me the specimen along with valuable registered as specimen No. ESN 7000l. information about the geology of the Since then, efforts to clarify the ge­ area. At my request, Mr. N. KONDO of ology of the area and especially . to Nagoya University guided me to the establish the fossil bearing horizon have fossil locality and neighboring areas. I been made repeatedly by many workers, am very grateful to all who extended including Prof. KIMURA and Prof. MIZU­ me the courtesies necessary to study T ANI; yet the fossil bearing horizon has the ammonite and its locality. never been firmly established because of The specimen is said to have been the poor exposure. discovered at a small cliff facing a creek The small cliff is situated about 100 m confluent with the valley of the Kiso from the junction of the creek with the River, about 500 m NE of Kurusu, Inu- Kiso River. The fossil is an internal

1 k m

Fig. 1. Inuyama Ammonite locality. H. Hosekiji; I. Inuyama; K. Katsuyama; KU. Kurusu; N. Nagoya; S. Sakahogi Station; T. Torikumi; altitude in meters. 640. A Jurassic Ammonite from near Inuyama 429 mold of an ammonite of moderate size, guchi Terrain of central Japan. It is impressed on the surface of black finely very likely that the sea spread over laminated siltstone. Although the horizon most of the terrain in this epoch, as from which the specimen originated judged from the occurrence of Upper could not be positively determined, the Jurassic ammonites (though the ages of debris scattered around the assumed the ammonites differ slightly), except in point of discovery is similar lithologi· the northern part which appears to cally to the specimen. At any rate the have undergone uplift indicated by specimen in question seems surely to evidence in the Kuruma and Tetori have been derived from the catchment intra montane basins. It remains un­ area of the creek. certain, however, if the sea extended farther south onto the Sambagawa The Age of the Beds metamorphic belt. The "Eo-Nippon Cordillera" (KOBAYASHI, 1941), which if As will be described the ammonite is present at all, divided the Upper Jura­ a form probably belonging to Choffatia ssic seas into the Japan Sea and Pacific, (Subgrossouvria) of the Pseudoperisphin· should be restricted therefore to a much ctinae. The specimen is incomplete and narrower belt than those postulated by the species could not be accurately KOBAYASHI and others. determined. The generic and subgeneric assignment ensures that the beds are Upper Bathonian to Lowest Oxfordian. Systematic Description Even if the generic and subgeneric as­ of the Specimen signments are not accepted, however, a Genus Choffatia SIEMIRADZKI, 1898 Middle to Upper Jurassic age for the beds would be warranted by the inclusion Subgenus Subgrossouvria SPATH, 1924 of the specimen in the Family Perisphin­ ctidae. Subgrossouvria is a subgenus Choffatia (Subgrossouvria) sp. indet. widely distributed in the Mediterranean Text-fig. 2 region in addition to East Africa, Iran, Material.·-An internal mold of two Cutch (India), and Mexico; its occurrence whorls. Inner whorls and the last part in Japan therefore is not surprising. of the adult whorl(s) are lost. Deformed Paleogeographical considerations deriving laterally into an ellipse, and also proba­ from the occurrence of this ammonite bly compressed tectonically. The Inuyama locality is situated in Repository:-Institute of Earth Sciences, the outer (southern) part of the Yama- Nagoya University No. ESN 70001. Measurements :-in mm. Number of Umbilical Height Thickness primary ribs Remarks Diameter diameter per whorl I ca. 75 44 C.72) ca. 24 C.72) ca. 16 C.21) 41 ca. 57 30 C.53) 16 C.28) ? 64 measured parallel to shorter axis ca. 54 32 C.59) ca. 14 C.26) ? 60 measured parallel to longer axis 430 Tadashi SATO

Fig. 2. Chaf/alia (Subgrassauvria) sp. Lateral v iew. x L

Description:-Coiling is evolute, over­ obscure constrictions per whorl. lapping of the inner whorls very slight; The suture-lines are not observable. section of the whorl is hard to ascertain Affinities and Compal'isons: - The because of compression, but the flanks sudden modification of the ribbing 'while are judged to have been gently inflated the shell is still small is characteristic with the maximum thickness at the of this form. The number of primary lower part; ventral region is not pre­ ribs suddenly decreases ·from about 60 served; umbilical is wall very inclined to 40 after a wide shallow constriction. and rounded. Although the larger whorls are not Ribbing on the inner whorls is recti­ preserved, this modification reveals that radiate and dense; probably bifurcating the living chamber of the senile stage regularly; this ribbing suddenly changes would not be much larger ; therefore after a shallow but rather oblique con­ the present specimen might represent striction into plicate primary ribs which the microconch. are much less numerous, more distantly Sudden modification of ribbing is ob­ spaced, and highest in relief at the servable in Subgl'ossouvl'ia as well as in umbilical border. The furcation of the macroconchs of the Perisphinctinae; e.g. se-conda'ry ribs from the -primaries is Pel'isphinctes s. s., Liosphinctes, etc. rather obscure, but it is likely that bi: However, such modification occurs in or tri-furcations occur at rather indis Perisphinctid macroconchs at much tinct points of branching. larger diameters, for instance, at a 200- There are three rather shallow and 250 mm diameter in Pel'isphinctes s. s., 640. A Jurassic Ammonite from near Inuyama 431 and at a 120-150 mm diameter in Lio­ BUSNARDO, R., ELMI, S. and MANGOLD, C. k:sphinctes. These genera attain a gi­ (1964) : Ammonites calloviennes de Cabra gantic size, and modified ribs are more (Andalousie, Espagne). Trav. Lab. Geol. or less cuneiform. Fac. Sci., Lyon, N. S., no. 11, p. 49-94. As admitted recently by a number of ELMI, S. (1962): Considerations sur Chofiatia authors, microconch dimorphs of these (Subgrossouvria) (Ammonitina, Pseudo­ perisphinctinae). C. R. somm. Soc. geol. gigantic forms do not show distinct France, no. 7, p. 205-206. modifications of ribs. Therefore, the GEMMELLARO, G. G. (1872-1882): Sopra present specimen does not belong to any alcune faune giuresi e liasiche di Sicilia, of the genera cited above. Studi Palaeontologici. Palermo, 434 p., 5ubgrossouvria, treated as a subgenus 21 pI. of Choffatia by MANGOLD (1970, p. 157), HAHN, W. (1969): Die Perisphictidae shows also a rather abrupt modification STEINMANN (Ammonoidea) des Batho­ of ribs. Among various species of this niums (Brauner Jura Epsilon) im sub­ subgenus, C. (5.) recuperoi (GEMMELLARO) deutschen Jura. jh. geol. Landesamt is superficially very similar to the present Baden-Wiirttemburg. Freiburg-in-Br., Bd. 11, p. 29-86. form as judged by the figures of GEM­ IGo, H. (1972): Conodonts, a new index MELLARO (reproduced by ARKELL, 1958, fossil in Japan. jour. Geogr., vol. 81, p. p. 221, fig. 80/1a, b). The number of 12-21. [In Japanese] fine, undivided ribs visible within the IMAMURA, S., NUREKI, T. and OKIMURA, Y. umbilicus is as high as 56 when the shell (1966): The Outline of geology of West is about 50 mm in diameter, and decreases Chugoku Backbone Mountains. Rept. Sci. rather abruptly to about 30. However, Research on Site Proposed for Quasi­ in the ribs on the outermost preserved National Park in West Chugoku Mountains. whorl of the holotype (probably one Shimane and Hiroshima Prefectures. [In more volution overlaps the original Japanese] specimen, judging by the presence of KOBAYASHI, T. (1941): The Sakawa Oro­ the scar of the umbilical seam on the genic Cycle and its bearing on the origin of the Japanese Islands. jour. Fac. Sci., last preserved whorl) the branching of Imp. Univ. Tokyo, Sect. II, vol. 5, pt. 7, secondary ribs occurs lower on the flanks p. 219-578. than in the present form. MANGOLD, C. (1970): Les Perisphinctidae Because important criteria such as (Ammonitina) du Jura meridional au whorl section, ventral aspect and suture Bathonien et au Callovien. Docum. Lab. lines are unknown, it is reasonable not geol. Fac. Sci., Lyon, No. 41, fasc. 2, to give a definite specific name to the 246p. present form. - et ELMI, S. (1966): Flabellisphinctes et Occurrence :-From a small creek about Chofiatia (Ammonitina) du Callovien 500m NE of Kurusu, Inuyama City. The moyen de l'Ardeche. Trav. Lab. geol. Fac. Sci., Lyon, N. S., no. 13, p. 183-204. horizon from which the specimen was MATSUMOTO, T. (1953): Jurassic. in His­ derived could be a black laminated torical Geology, vol. 2, Asakura, Tokyo. siltstone bed. [In Japanese] NAUMANN, E. (1885): Ueber den Bau und References Entstehung der japanischen Inseln. ARKELL, W. J. (1958): English Bathonian MIZUTANI S. (1964): Superficial folding of ammonites. Part VIII. Monogr., Pal­ the Palaeozoic System of central Japan. aeont. Soc., London, p. 211-232. jour. Earth Sci., Nagoya University, vol. 432 Tadashi SATO

12, p. 1-122. SUZUKI, A. and SATO, T. (1972): Discovery SATO, T. (1962): Etudes biostratigraphiques of a Jurassic ammonite from Toriashi des ammonites du Jurassique du Japon. Mountain. Jour. Ceol. Soc. Japan, vol. Mem. Soc. geol. France, N. S., t. 41, p. 78, p. 213-215. [In Japanese] 1-122. WAAGEN, W. (1893): Jurassic fauna of SPATH, L.F. (1927-1933): Revision of the Kutch-The Cephalopoda (Belemnitidae Jurassic cephalopod fauna of Kachh and Nautilidae). Pal. Indica, Ser. 9, vol. (Cutch). Pal. Indica, N.S. ser 9, vol. 2, 1, 247., 60 pI. 945p., 130 pI. Trans. Proc. Palaeont. Soc. Japan, N. S., No. 96, pp. 433-436, pI. 57, December 20, 1974

641. UPPER TRIASSIC CONODONTS FROM OKINAW A-JIMA (PALEONTOLOGICAL STUDY OF THE RYUKYU ISLANDS-IV)

TOSHIO KOIKE

Department of Geology and Mineralogy, Faculty of Science Tokyo University of Education, Tokyo, 112

T AKESHI ISHIBASHI

Department of Geology, Faculty of Science Kyushu University, Fukuoka, 812

rJjtt/mJil;ilE1:$:=:_*:1 / r:/ Hr.":>\','"(: rJjtt/mJil;Q)4-Ifflt:Jl1:$:o' i?, ~ \","(f"1, -t-etr.E. (1970) tr.J:"?,"(~~~.h'"(:to~, :1 / r':/ ra-ilE-toJl*f"1 Juvavites d. kellyi ffftr."'@j~i?.ht.:o ;:. Q)ftEffff"1~t*Q) 'J1 - =. 7 :/1:$ Tropites welleri ffftr.M.!t ~.ht.:o 4-@]~ i?.ht.: :1 /

r:/ H"1 Epigondolella nodosa (HAYASHI) Q)fi:O' 3 :f!l!-e;6 0 0 Epigondolella nodosa Q)ggt±l:o' i?, ;;$:JI*f"1~t*Q) 'J1- =. 7 :/Jit1:$ Klamathites m'acrolobatus fff; ~'Iv;t,. ~ ';I rE1R.WQ) Anatropites ffftr.M.!t~.hoo J;J.1:Q)J:?tr., :1/ r:/rc7:/"f:"f"1 Hr.J:o *JI*Q)~-R;f}c~f;):Jif!J'ilJ C-e;6o :0', m:tEQ)~illt-ef"1, ,:1 / r:/ Hr. J: 0 fi ? :0', ;t:=f~ L \,,~-R;a-ffi-to 'Nfuf!ti:7c • E. ~

indicates almost equivalent conclusion Introduction and Acknowledgements obtained from the ammonoid assemblage. During the study of Upper Triassic Cordinal thanks are due to Professor ammonoids, ISHIBASHI collected some Emeritus Teiichi KOBAYASHI of Tokyo conodonts from the limestone of the University, Professor Ryuzo TORIYAMA Nakijin Formation (ISHIBASHI, 1969) in of Fukuoka University and Professor Okinawa-lima. The conodont-bearing Wataru Hashimoto of Tokyo University limestone was obtained from the Juva­ of Education for their kind criticism vites cf. kellyi Zone (ISHIBASHI, 1970) and encouragement. Acknowledgement which is characterized by the occur­ is extended to Associate Professor Hi­ rences of arcestids and juvavitids. sayoshi IGO of University of Tsukuba ISHIBASHI correlated this zone with the for his critical reading of this manu­ upper Carnic Tropites welleri Zone script. (TOZER, 1967) of North America. The conodont fauna also contains important Remarks on the Conodont Assemblage species for age determination and * Received May 8, 1974: read June 16, Conodonts described herein were col­ 1974 at Osaka. lected from the muddy black limestone

433 434 Toshio KOIKE and Takeshi ISHIBASHI

128"

.. -". ~.::.:- ~-'--' .- .. , ... ~

Text-fig. 1. Index map and. location of conodont-bearing limestone collected. of the horizon 3 (AKa), the upper part is most abundant and comprises about 35 of the Nakijin Formation. ISHIBASHI specimens but the others are represented (1973) reported some ammonoids from by only one or two specimens in approxi­ this horizon such as Jovites? sp., Ana­ mately 2 kg rock sample. Among these tomites d. taulai (Mo]s), Tardoceras? sp. conodonts E. nodosa is a quite important and Arcestes (Stenarcestes) sp. A. From indicator for age. This species was the horizon 1 (Ya) about 20 m above first reported by HAYASHI (1968) from this horizon following ammonoids were limestone conglomerate of the basal also identified by him, Hannoceras (H.) part of the Adoyama Formation in henseli (OPPEL), Jovites d. dacus (Mo]s), Kuzuu, southern Ashio Mountains. HA­ Juvavites d. kellyi SMITH, Discotropites YASHI assigned the fauna including this quinquepunctatus (Mo]s), D. d. plinii species as Permian in age.. According (Mo]s). Hoplotropites ct arionis (Mo]s), to the study by KOIKE, the conodont H. georgii (Mo]s), Arnioceltites d. arieti­ fauna is composed of derived fossils. ti/ormis (Mo]s), Arietoceltites arietitoides This species is associated not only with (DIENER), Arcestes sp., Hypocladiscites Epigondolella abneptis (HUCKRIEDE) and subaratus (Mo]s) and others. He re­ E. postera (KOZUR and MOSTLER) which ferred these two. horizons to the Juva­ indicate late Carnian to middle Norian vites d. kellyi Zone and correlated this but also with Middle Permian spatho­ zone with the Tropites welleri Zone of gnathodids and gnathodids, and Scy­ North America. . thian to Carnian neospathodids and The conodont fauna comprises Epi­ gondolellids. Detailed correlation be­ gondolella nodosa (HAYASHI),· Neohindeo­ tween conodont assemblages and ammo­ deila triassica (MULLER), Enatiognatus noid zones of Europe and North America ziegleri(DIEBEL), and Cypridodella d. was carried out by MOSHER (1968, conjiexa MOSHER.' Epigondolella nodosa 1970), SWEET et al. (1971),' KOZUR and 641. Upper Triassic Conodonts from Okinawa-Jima 435

MOSTLER (1971, 1972), KOZUR (1972) and Description;-This species is charac­ KRYSTYN (1973). In British Columbia terized by anteriorly high carina and this species guides to the uppermost elongated platform with nodes on an­ Carnian Klamathites macrolobatus Zone terior lateral margins. On immature and the lowermost Norian Mojsisovic­ specimens platform expanded laterally sites kerri Zone.. In Hallstiitter Kalk of at central portion and abruptly tapered Austria this species also occurs from anteriorly. Posterior end rounded and the Anatropites Bereich of the upper­ scooplike. Lateral margins upturned most Carnian Tuval Stage and from the at central portion and crenulated at Mojsisovicsites kerri Zone of the lower­ growth stage. Keel relatively narrow most Norian Lac Stage. On the basis and high. Groove ends in flaring cavity. of the study of conodont assemblage, On mature specimens platform almost KRYSTYN (1973) correlated the Anatro­ equivalent in width at posterior to pites Bereich of Europe to the Klama­ central portion and gradually tapered thites macrolobatus Zone of North anteriorly. Crenulation or nodes on America. The conodont assemblage lateral margins developed in anterior treated herein contains no Epigondolella two thirds of platform. Keel low and abneptis HUCKRIEDE which appears in broad, bearing longitudinal striation and upper part of Tuval Stage and later ending in small pit. On large specimens than Epigondolella nodosa. Accordingly, keel probably bifurcated. this fauna may indicate the lower part Remarks;-Immature specimens of of the Anatropites Bereich of Europe or this species are closely similar to those the Klamathites macrolobatus Zone of of Paragonodolella polygnathiformis (Bu­ North America. The age is almost DUROV and STEF ANOV) in gereral aspect. equivalent -with the conclusion by am­ However, the lateral margins of plat­ monoid assemblage. form of this species are thin and more strongly upturned. Mature specimens of this species are rather similar to Description of Species Epigondolella abneptis (HUCKRIEDE). This species, however, posesses more elon­ Epigondolella nodosa (HAY ASH!) gated platform and no nodes on pos­ PI. 57, figs. 1-19. terior margin.

Gladigondolella abneptis nodosa HAYASHI, 1968, p. 69, pI. 2, fig. 9. References Epigondolella primitia MOSHER, 1970, p. 740, pI. 110, figs. 7-13, 16, 17. HAYASHI, S. (1968): The Permian cono­ Epigondolella n. sp. A. SWEET et aI., 1971, donts in chert of the Adoyama Forma­ pI. 1, figs. 8, 40. tion, Ashio Mountains, Central Japan. Tardogondolella nodosa nodosa (HAYASHI)­ Earth Science, vol. 22, no. 2, p. 63-77, KOZUR and MOSTLER, 1971, pI. 2, figs. pIs. 1-4. 10, 11, 13. ISHIBASHI, T. (1969): Stratigraphy of the Epigondolella nodosa (HAYASHI)-KozUR and Triassic fromation in Okinawa-jima, MOSTLER, 1972, pI. 3, figs. 9, 10; KRYS­ Ryukyus. Mem. Fac. Sci., Kyushu Univ., TYN, 1973, p. 138, 139, pI. 3, figs. 2-4. ser. D. Geol., vol. 19, no. 3, p. 373-385. Metapolygnathus nodosa (HAYASHI)-KozUR, - (1970) : Upper Triassic ammonites 1972, pI. 3, figs. 10, 11. from Okinawa-jima, Part I. Mem. Fac. 436 Toshio KOIKE and Takeshi ISHIBASHI

Sci., Kyushu Univ., Ser. D. Geol., vol. ter Obertrias (Salzkammergut, Oster­ 20, no. 2, p. 195-223, pis. 26-29. reich). Verh. Ceol. B.-B., Heft 1. p. -- (1973) : Upper Triassic ammonites 113-153, pis. 1-5. from Okinawa-jima, Part II, Ibid., vol. MOSHER, L. C. (1968): Triassic conodonts 22, no. 1, p. 1-12, pis. 1-3. from western North America and Europe KOZUR, H. (1972): Die Conodontengattung and their correlation. Jour. Paleont., Metapolygnathus HAYASHI 1968 und ihr vol. 42, no. 2, p. 895-946, pis. 113-118. stratigraphischer Wert. Ceol. Paliiont. -- (1970): New conodont species as Mitt. Innsbruck, vol. 2, no. 11, p. 1-37, Triassic guide fossils. Ibid., vol. 44, pis. 1-7. no. 4, p. 737-742, pI. 10. -- und MOSTLER, H. (1971): Probleme SWEET, W. C., MOSHER, L. C., CLARK, D. L., der Conodontenforschung in der Trias. COLLINSON, J. W. and HANSENMUELLER, Ibid., vol. 1, no. 4, p. 1-19, pis. 1-2. W. A. (1971): Conodont biostratigraphy - und -- (1972): Die Bedeutung der of the Triassic. in Ceol. Soc. America, Conodonten fUr stratigraphische und Memoir 127, Symposium on conodont paUiogeographische Untersuchungen in biostratigraphy: Ed., SWEET, W. C. and der Trias. Mitt. Ces. Ceol. Bergbaustud., BERGSTROM, S. M., p. 441-465, 1 pI. vol. 21, p. 777-810, pis. 1-4. TOZER, E. T. (1967): A standard for Tri­ KRYSTYN, L. (1973): Zur Ammoniten- und assic time. Ceol. Surv. Canada, Bull. Conodonten-Stratigraphie der Hallstat- 156, p. 1-103, pis. 1-10.

Explanation of Plate 57

Figs. 1-19. Epigondolella nodosa (HAYASHI). 1. Lateral view of an immature specimen. x 130; 2, 3. Lateral and oral views of a immature specimen. x 130; 4. Lateral view of an immature form. x 165; 5. Lateral view of an immature form. x 165; 6. Lateral view of an immature specimen. x 165; 7. Oral view of an immature specimen. x 120; 8. Oral view of an immature specimen. x 120; 9, 10. Lateral and oral views of a mature specimen. x 130; 11-13. Lateral, oral and aboral views of a mature specimen. x 130; 14. Lateral view of a mature specimen. x 165; 15. Lateral view of a mature form. x 130; 16. Lateral view of a mature specimen. x 165; 17. Lateral view of a mature specimen. x 130; 18. Lateral view of a mature specimen. x 100; 19. Oral view of a mature specimen. x 165. Figs. 20, 21. Cypridodella d. conflexa MOSHER. 20. Lateral view. x 130; 21. Lateral view. x 150. Fig. 22. Enantiognathus ziegleri (DIEBEL). Lateral view. x 145. KOIKE and ISHIBASHI: Upper Triassic conodonts from Okinawa-jima Plate 57 Trans. Proc. Palaeont. Soc. Japan, N. S., No. 96, pp. 437-441, December 20, 1974

642. SIZE DIFFERENCES IN THE DIATOM, ANNELLUS CALIFORNICUS TEMPERE*

LLOYD H. BURCKLE

Hunter College of C. U. N. Y. New York, New York 10021 and Lamont·Doherty Geological Observatory of Columbia University Palisades, New York 10964

and

ALAYNE TODD

Hunter College of C. U.N. Y. New York, New York 10021

*~i!tI£~ Annellus cali/ornicus TEMPERE: *fil!Q) 2 ff.Q)* ~ ~ (*~ C ~lii) ~ ~W L..t.: C ~;::" !!li~t.(~AiJ; ~~ i?.ht.:o ff.Q)-"?Ii.JIHfll$~*:ijZi$Q) ~ Q)"C', ~?­ "?Q)ff.li. *1i'ii!!i;l¥1iI§~¥/iI;Q) ~ Q)"C'~7.>o 1iI§~ff.li. $~*:ijZi$ Q) ~ Q) J: IJ 1i.7.>iJ>t;::*~

"C'~ 7.> 0 ~ Q) J: ? t.( llf.Q)* ~ ~ Q)~Ati. I£~ff.~~.:!lit':~Q)~, c < tC7.fi?Q)Re~tc~c-?< ~Q)c::i!f*-i?.h7.>o L.H. BURCKLE and A. TODD

in the size of C. nodulifer. BELA YEV A Introductory Note (1971) added credence to KOLBE'S pos­ tulate by making actual field observa­ The fact that individual Diatom tions in the Equatorial Pacific. Subse· species vary considerably in size has quently, BELAYEVA (1972) has reported long been established in the literature. additional species whose size is ap­ Their mode of reproduction allows for parently dictated by upwelling. size variations in single species ranging The purpose of this note is to add to from less than 10 p to over 100 p. In our knowledge of single species which addition to this, size variations may be shows considerable size variation rela­ a response to changing or differing tive to geographic location (in this study ecological conditions. W HIM PEN NY Annellus californicus) and to offer some (1936), for example, found size changes speculation concerning the cause of this in Rhizosolenia spp. as the season pro­ particular phenomenon. Our samples gressed. KOLBE (1954) postulated that were obtained from Miocene deep· sea changes in the rate of upwelling of sediments of the eastern Equatorial deep water may be related to changes Pacific and from Miocene sediments on * Received July 15, 1974; read Oct. 19, 1974 the Noto Peninsula, western Honshu at Nagoya. Lamont·Doherty Geological Ob· Island, Japan (see Fig. 1 for locations servatory Contr. No. 2165. of samples used). 437 438 Lloyd H. BURCKLE and Alayne TODD

165 150

~:' ..

15 15

o o

165 150 135 120 105

Fig. 1. Generalized location maps for samples used in this study. The samples from the equatorial Pacific came from sites 77 and 78 of DSDP Leg IX. The samples on Noto Peninsula came from the Hojuji and Iida Formations.

The Diatom species Annellus cali/or­ originated as an invagination of the nicus TEMPERE has received considerable inner wall. Hence the taxonomic posi­ attention in the literature as a strati­ tion of this form is still somewhat in graphic marker (HANNA, 1932 ; REINHOLD, doubt and, for this reason, we retain 1937; WbRNARDT, 1967; NAKASEKO et the name Annellus cali/ornicus. aI., 1972; BURCKLE, in press, to mention only a few). OPDYKE et aI. (1973) and BURCKLE (in press) have pointed· out Methodology that this species is a rather· reliable marker for the Early/Middle Miocene Samples were prepared after the boundary-its first appearance occur­ method described by SCHRADER (in ring just before the beginning of the press).. Approximately 1 gram of sample Middle Miocene. was placed in a 1: 1 solution of acetic In addition, this species has received acid and hydrogen peroxide. The resi­ considerable attention because of its due was centrifuged seven times and peculiar morphology. HANNA (1932) . further concentrated by differential was one of the first to point out that settling in beakers of 10 cm height. the species was like a hoIIowcylinder, Disposable pipettes were used to trans­ open at both ends. This observation fer the Diatoms in suspension to a was challenged by RYDE (1962) whose permanent slide. careful work showed the existence of Each slide was scanned for Annellus a sieve plate in the central region. cali/ornicus. Specimens were spotted Accordingly, RYDE transferred this form with mechanical stage coordinates and to the genus Craspedodiscus. With the where possible, two measurements on aid of the Scanning Electron Micro­ each specimen were made-length and scope, WORNARDT (1970)iIIustrated this width (see Fig. 2 for definition of these central sieve plate but showed that it parameters). 642. Size dijJerences in A nnellus californic~~s 439

widths ranging from 43.3 to 13.9 fl and averaged 81.8 fl. The standard deviation is 16.5. Lengths ranged from 34.1 to 53.9 fl, with an average of 42.4 fl and a standard deviation of 3.52. A "t" test was performed to deter­ mine the significance of the differences between these sets of data. The " t " test is given by:

X a- X b l!5!a . N b_ 5 'V N a+ Nb where Xa and Xb are the means for the two sets of samples and N a and N b are ~ LENGTH -----1 the numbers of samples for sample sets a and b. 5 is the average standard j=:~ :'~; ~ .... deviation for the two sets of samples and is given by: r

The valu es we obtained indicate that the differences between the two sample sets are significant at the 99% level. Such values permit us to concluded B that the differences are real.

Fig. 2. lllustra tion of Annellus cali/ or­ nicu s Tempere showing how measurements Discussion - were made f or this study. It is interesting to speculate on those influences, ecological or otherwise, that The Data may operate to produce such size dif­ ferences. WHIMPENN Y (1936) invoked Fifty-five specimens were measured seasonality as a cause. KOLBE (1954) from the Equatorial Pacific and 69 invoked changes in the rate of upwell­ specimens from the Japanese Noto Pen­ ing (and, thus, changes in nutrient con­ insula section (Hojuji and Iida Forma­ centration) as a causative factor. tions). Widths for the Equatorial Pacific From a consideration of the geogra­ specimens ranged from 14.2 to 92.9 fl phic distribution of our samples the with a mean of 54 fl. Lengths range from most obvious cause may be temperature. 10 to 43.1 fl and · averaged 33.4 fl. The Many organisms do increase in siz~ standard deviation on width and length from the equator toward the poles. A measurements were 13.6 and 4.7, respec­ second suggestion is that the size dif-. tively. The Japanese specimens had ferences may be due to different habi-: 440 Lloyd H. Bu RCKLE and Alayne TODD tats. The Equatorial Pacific specimens Distribution Committee. Research was lived in an open ocean environment, supported by National Science Founda­ quite distant from land. The Japanese tion Grants GA 20211 (under the U. S.­ specimens were enclosed in sediments Japan Cooperative Program) and GA representing a near shore (shelf) envi­ 35463x. ronment. Coastal environments nor­ mally have much greater concentrations of dissolved nutrients. This factor may References contribute to the larger size of the BELAYEVA, T. V., (1971): Quantitative dis­ Japanese specimens. tribution of planktonic diatoms in the Still, a third possibility is that selec­ western part of the tropical Pacific tive solution has destroyed the larger (English translation). Oceanology, Acad. forms of A. cali/ornicus in the Equa­ Sci. U. S. S. R., vol. 11, p. 578-584. torial Pacific-leaving only the smaller - (1972): Distribution of large diatoms forms behind as a residue. Of these in the southeastern Pacific. Ibid., vol. possibilities, we prefer to speculate on 12, p. 400-408. the first two. It seems unreasonable BURCKLE, L. H., (in press): Diatom evi- to invoke dissolution as a factor. dence bearing on the correlation of the Relizian stage, California. Pacific Geology. Such a conclusion implies that the HANNA, G. D., (1932): The Diatoms of Japanese samples represent a more Sharktooth Hill, Kern County, California. complete population. If this is so then Calif. Acad. Sci., XX, p. 161-263. the lower limit and widths and lengths KOLBE, R. W., (1954): Diatoms from equa­ for the Japanese samples (43.3 and 34.1 torial Pacific cores. Swedish Deep-Sea p., respectively) should be close to those Exped. Repts., V I, p. 3-49. for the Equatorial Pacific samples (14.2 NAKASEKO, K., KOIZUMI, I., SUGANO, K. and and 10 p., respectively). The fact that MAIYA, S. (1972): Microbiostratigraphy they are not suggests that dissolution of the Neogene formations in the is not a major factor in the differences Nadaura area, Toyama Prefecture, Japan. between these two populations. Jour. Geol. Soc. Japan, vol. 78, p. 253- 264. (In Japanese) This leads us to conclude that one or OPDYKE, N. D., BURCKLE, L. H. and TODD, A. both of the first two factors may have (1973): Extension of magnetic strati­ operated to cause the size differences. graphy to the earliest Miocene in deep­ It seems reasonable to conclude further sea sediments (Abst.). Annual Mtg. that changes in size with time may Amer. Geophy. Union, p. 255. cast some light upon temporal changes REINHOLD, Th. (1937): Fossil diatoms of in the environments of deposition. the Neogene of Java and their zonal distribution. Nederland en Kolonien Geol. Mijinb. Genoot., Verh., Geol. ser., vol. 12, p. 43-132. Acknowledgements RYDE, ]. W., (1962): Study of Annellus We thank Tsunemasa SAITO and californicus Tempere. Jour. Roy. Micr. Soc., vol. 80, p. 243-246. Peter R. THOMPSON for critically re­ WHIMPENNY, R. S., (1936): The size of viewing the manuscript and offering diatoms: I. The diameter variation of helpful suggestions. Samples from Leg Rhizosolenia styliformis Brightw. and IX of the Deep Sea Drilling Program R. alata Brightw., in particular, and of were generously supplied by the Sample pelagic marine diatoms in general. Jour. 642. Size differences in Annellus californicus 441

Mar. Bioi. Assoc. U. K., vol. 21, p. 29- p. I-lOB. 60. -- (1970): Miocene marine diatoms and \lVORNARDT, W. W., (1967): Miocene and silicoflagellates from Newport Lagoon, Pliocene diatoms from California. Cali­ Newport Beach, California. Geologic fornia Acad. Sci. Occasional Papers, 63, Guide Book, p. 37-49.

Hojuji Noto !ida 442

Palaeontological Society of Japan Special Papers No. 18 -Silurian Trilobites of Japan in Comparison with Asian, Pacific and Other Faunas

By Teiichi KOBAYASHI and Takashi HAMADA Issued November 30, 1974; 155 pp., 12 pIs.

Price (postage and handling included) ...... U. S. $ 17.00

The paper contains palaeontological description of Silurian trilobites from Japan based on newly found collections containing 40 species of 7 families, among which 28 species are new to science. Comprehensive discussions are given especially on the systematic classifica­ tion of the Illaenidae, Scutelluidae, Encrinuridae and Proetidae, in which 2 subfamilies, 3 genera and 1 subgenus are newly established. Synoptic lists of genera and species and also their distribution are shown with respect to several families. Notes are given on the age of the trilobite bearing horizons and on the mode of occurrence and palaeoecology of the described species. In addition a comprehensive review is given on the Silurian trilobite faunas of various areas in East Asia, South Asia, Siberia, Arctic province, Australia, Tas­ mania and the Americas.

The special papers are on sale at the Society. Orders must be accompanied by remit­ tance, made payable to Dr. Kametoshi KANMERA, Editor of the Special Papers, Palaeon­ tological Society of Japan, Fu.kuoka Office, c/o Department of Geology, Faculty of Science, Kyushu University, Fukuoka 812, Japan.

The following back numbers are also purchasable from the same office as mentioned above.

Number 9 (Issued Dec. 15, 1962): Bibliography of Japanese Palaeontology and Related Sciences, 1951-1960. Compiled by Fuyuji T AKAI U. S. $ 18.00 Number 11 (Issued Feb. 20, 1966): The Echinoid Fauna from Japan and Adjacent Regions. Part I. By Syozo NISIYA~IA U.S. $ 33.00 Number 12 (Issued Sept. 20, 1966): Postcranial Skeletons of Japanese Desmostylia. By Tokio SHIKAMA U. S. $ 17.00 Number 13 (Issued March 16, 1968): The Echinoid Fauna from Japan and Adjacent Regions. Part II. By Syozo NISIYAMA U. S. $ 26.00 Number 14 (Issued Nov. 25, 1969): Litho- and Bio-facies of Carbonate Sedimentary Rocks- A Symposium. Edited by Tatsuro MATSUMOTO U. S. $ 12.00 Number 15 (Issued Feb. 25, 1971): Early Devonian Brachiopods from the Lesser Khingan District of Northeast China. By Takashi HAMADA U. S. $ 17.00 Number 16 (Issed Dec. 25, 1971): Tertiary Molluscan Fauna from the Yakataga District and Adjacent Areas of Southern Alaska. By Saburo KANNO U. S. $ 18.00 Number 17 (Issued Nov. 30, 1974): Revision of Matajiro YOKOYAMA'S Type Mollusca from the Tertiary and Quaternary of the Kanto Area. By Katura OYAMA U.S. $ 20.00 (Numbers 1, 2, 3, 4, 5, 6, 7, 8 and 10 are out of stock.) 443

PROCEEDINGS OF THE PALAEONTOLOGICAL SOCIETY OF JAPAN

B ;;fs:ii~<1'h~~~ 114 @]191J~ It. 1974 ~ 10 Jj 19 Ontogenies of two Middle Ordovician tri­ B t;:: i5iim*~3lI[~$:ltB~f4*t!c~ t;:::iOI,,-C I~I'H~ lobites from the Edinburg Formation, ~:ht.: (~:b~~ 59 i5). Virginia. (f\';~) ...... Hu, C.H. f:kW;fiW<::fij/~ ~ '7;:J:. '7 *(J) iliI::1*jlJ<1'hft;fit;::-:> I,,-C ...... i1lim~~ iIiII A ~ ;Ji T'wo new non-marine species of Bivialvia 7C::It~~=*~:fJ I3IE.~ Ikebea ...... /NiM- from the Lower Cretaceous of South- Diatom stratigraphy in the central North west Japan ...... *m~R Pacifc and its significance .. KOlZUMI, I. On the non-marine molluscan fauna from Size differences in the diatom, Annellus the Upper Mesozoic Myogog Formation, californicns TEMPERE (f\';~) ...... Korea ...... YANG, S. Y. · ...... BURcKLE, L. H. & TODD, A. ;fLfliilMIIlIllJfi(J) r$S.!II!*J: !J ~f±l Lt.: mJI~ft ::ItW~7C:t'li:ltB~ (J) J::$I~r!ll!*~;fiW<:Jt 7":/ / -j' ;fi ...... !l!fm~z '7 :/!7 r :/ ...... l/ilIff • ;fL1+1M1IIl1llj/(J)r$S.!II!*J: !J ~I±I Lt.: Toxa- 7~V~:/wv~V!7v1*(J)~1/7'7¥'7- steridae t;::-:>I,,-C ...... !l!fm~z· 'Njili~':::: ~q;::-:>\,,-C ...... !*m;ii!l;- Notes on Inoceramus labiatus SCHLOTHEIM 9n Palaeofusulina-Colaniella fauna from from Hokkaido ...... !l!fm~Z· r~;;fs:~il~ the Upper Permian of Kelantan, Ma- Additional acanthoceratids from Hokkaido laysia ...... MATSUMOTO, T. · .:. OKIMURA, Y., ISHII, K. & YIN, E.-H. fwaftj!i*~1Vt~ Chlamys (J)Ht;::-:>I,,-C .. Abadehella, a new genus of tetrataxiid ...... :J.t!mf¥:-il~ . :I:lBj:H'lJt • !l!fmi'llf~ Foraminifera from the Late Permian .. Patinopecten from the Oita Group .. Biffj ~ NAKAzAwA, K., OKIMURA, Y. & ISHII, K. llI;l1.1U'~t;:::iO~ ~ jlJ<1'hft;fi~~(J)fiEJl:i¥.JWI.l~ .. On the genus Colaniella and its biostrati- ...... iM!JIIl$':::: • i1li;;fs:J:frr • ~ffiif{1.: graphical significance ...... ~$~pl*JlK*~1Vt~(J)f1.Jii'i~mft:E ~m J:f ISHII, K., OKIMURA, Y. & NAKAzAwA, K. Biostratigraphical significance of Kewia .. Miocene radiolarian fossils from the Oki ...... , ...... MORISHITA, A. Islands in Shimane Prefecture, Japan· .. llI;lliJfi~(J)~¥lJ1t;fi ~ ...... , ... :.: •. '-&l"~~rr · ...... NAKAsEKo, K. & NISHIMURA, A. i5 Wf.m.-.jjt-lj-:/"=l" (J):f'tii~ ...... ~ .. ·l/ilIff*z!J;/J Nagatophyllum satoi OZAWA (J)~~lt-H;::-:>\" -C ...... *miE~ ·I£Jlla~· :j)!fj;;fs:~- ~~o 10 Jj 20 B (B) llI;llij/~~~:iO J: lfftlffili ~-'7~7~:iO~~*~F~~-~~~e.B m:ll.ft;fiJ:f<1'h~Ji!.~o ~I*J~ ~r J'a .!:: Dalmanitina m(J)j/~ ...... (~:b~~ 35 i5)o ...... /N;fi:J{-· ~m~± 444

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(New Series No. 89-No. 96)

PALAEOZOOLOGY

Protozoa

Page KOBAYASHI, Fumio: Fusulinids of the Nagaiwa Formation ...... 200 SADA, Kimiyoshi and DANNER, Wilbert R.: Early Permian Parafusulina and Pseudofu- sulinella from the Chilliwack Group, southwestern British Columbia ...... 72 SADA, Kimiyoshi and DANNER, Wilbert R.: Late Lower Carboniferous Eostaffella and Hexaphyllia from central Oregon, U. S. A ...... " ...... , ...... " .. . 151 SADA, Kimiyoshi and DANNER, Wilbert R.: Early and middle Pennsylvanian fusulinids from southern British Columbia, Canada and northwestern Washington, U. S. A ..... 249 SAITO, Tsunemasa and MAIYA, Sei.juro: Planktonic Foraminifera of the Nishikurosawa Formation, Northeast Honsh'l, Japan ...... 113 UJIIE, Hiroshi and IcHIKURA, Masaki: Holocene to uppermost Pleistocene planktonic foraminifers in a piston core from off San'in district, Sea of Japan ...... 137 WATANABE, Kozo: Profusulinella assemblage in the Omi Limestone, Niigata Prefecture, central Japan. (Studies of Carboniferous fusulinacean of Omi, Part I) ...... 371

Coelenterata

NISHIMIYA, Katsuhiko and YAMAGIWA, Nobuo: Coral fossils from the Kosode Forma- tion, Yamanashi Prefecture...... 15

Brachiopoda

TAZAWA, Jun-ichi: Two Species of Permundaria from the Kitakami Mountains, Nor- theast Japan...... 313 YANAGIDA, Juichi: Early Carboniferous Visean faunas discovered from Mitsuza wa, southeastern part of the Kwanto Massif. Part II. Brachiopods ...... 99

Mollusca

BANDO, Yuji and SHIMOYAMA, Shoichi: Late Scythian ammonoids from the Kitakami Massif ...... ; ...... 293 CHINZEI, Kiyotaka: Omma-Manganjian molluscan fauna in the Futatsui area of nothern Akita, Japan ...... 81 HIRANO, Hiromichi: Biostratigraphic study of the Jurassic Toyora Group. Part 11.... 1 HIRANO, Hiromichi: Biostratigraphic study of the Jurassic Toyora Group. Part III .. 45 KAPOOR, Hari Mohan and BANDO, Yuji: Report of Lower Trias from Pir Panjal, near Qazigund, Kashmir, India, with description of a few ammonoids ...... 227 445 446 Nos. 89rv96 (1973, 1944)

KIM, Bong Kyun, NODA, Hiroshi and YOON, Sun: Molluscan fossils from the Miocene Eoil Formation, Gampo and Ulsan Districts, southeastern side of Korea...... 266 MATSUMOTO, Tatsuro: Vascoceratid ammonites from the Turonian of Hokkaido (Studies for the Cretaceous ammonites from Hokkaido and Saghalien-XXVI) ...... 27 NODA, Masayuki: A new species of Inoceramus from the Shimantogawa Group of South Shikoku ...... •...... 240 OKAMOTO, Kazuo and TERACHI, Masami: Miocene molluscs from the Bihoku Group at Miyauchi-chO, ShObara City, Southwest Japan...... 341 SAKAGAMI, Sumio: Early Carboniferous Visean faunas discovered from Mitsuzawa, southeastern part of the Kwanto Massif. Part I. Gastropods ...... 95 SATO, Tadashi: A Jurassic ammonite from near Inuyama, north of Nagoya...... 433 TANABE, Kazushige: Evolution and mode of life of Inoceramus (Sphenoceramus) nau­ manni YOKOYAMA emend., an Upper Cretaceous bivalve...... 163 YANG,. Seong-Young: Note on the genus Trigonioides (Bivalvia)...... 395

Arthropoda

Hu, Chung-Hung: Ontogenies of two Middle Ordovician trilobites from the Edinburg Formation, Virginia ...... 353

Conodontophorida

IGO, Hisaharu: Lower Carboniferous conodonts from the Akiyoshi Limestone Group, southwest Japan...... 185 IGo, Hisayoshi and KOBAYASHI, Fumio: Carboniferous conodonts from the Itsukaichi district, Tokyo, Japan...... 411 KOIKE, Toshio and ISHIBASHI, Takeshi: Upper Triassic conodonts from Okinawa-jima 427

Miscellanea

HATAI, Kotora, MASUDA, Koichiro and NODA, Hiroshi: Marine fossils from the Moniwa Formation along the Natori River, Sendai, Northeast Honshu, Japan. Part 2. Pro­ blematica from the Moniwa Formation...... 364

PALEOBOTANY (Megafossil) HUZIOKA, Kazuo and TAKAHASHI, Eitaro: A Triassic Hepatica from the Omine coal- field, Southwest Honshu, Japan...... 24

(Microfossils) BURCKLE, Lyod H. and TODD, Alayne: Szie differences in the diatom, Annellus cali- fornicus TEMPERE ...... 437 KOIZUMi, Itaru: Marine diatom flora of the Pliocene Tatsunokuchi Formation in Miya- gi Prefecture ...... •...... •... ;... 126 MATSUOKA, Kazumi: Some Plant Microfossils from the Miocene Fujiwa.ra Group, Nara, Central Japan ...... •...... •...... •...... •....•.•..•.. , ...... 319 447

INDEX OF FAMILIES, GENERA AND SPECIES

Notes: Words listed are names of families, genera and species, which are either des­ cribed or illustrated in the Transactions and Proceedings of the Palaeontological Society of Japan, New Series, Nos. 89-96; words in heavy type are names of new genera, subgenera, species, and subspecies.

A Cyclina japonica...... 277 Achomosphaera sp...... 328 Cymatiosphaera sp...... 337 Acila (Truncacila) nakazimai...... 94 Cypridodella d. conjtexa ...... 436 Actinastrea? sp...... 20 Actinocyclus ehrenbergi ...... 134 D Actinoptychus undulatus...... 134 Dactylioceras d. helianthoides...... 46 Akiyoshiella ozawai...... 387 Dalmatites sp...... 308 toriyamai...... 387 Dimorphoseris tabayamensis ...... 21 Amphilichas cf. prominulus ...... 354 Diphyes colligerum ...... 328 Anadara amicula ...... 94 latiusculus...... 329 (Anadara) kiiensis...... 273 Dosinia (Phacosoma) nomurai...... 276 (Hataiarca) daitokudoensis 274,352 Dumortieria? sp...... 11 ( ) kakehataensis ...... 274 Annellus cali/omicus ...... 439 E Areoligera senonensis ...... 333 Elaphe climacophora...... 370 Arietites sp...... 48 Enallhelia sp...... 21 Amautoceltites sp...... 299 Enantiognathus ziegleri ...... 436 Audaxlytoceras? sp...... 50 Endothyra sp...... 264 Endothyranopsis? sp...... 263 B Eophyllites d. dieneri...... 306 Batillaria (Tateiwaia) yamanarii ...... 352 --- sp ...... 307 Eoschubertella sp. A ...... 215 ? sp...... 262 C Eostajfella columbiana ...... 258 Calamorphyllia sp...... 21 --- kanmerai ...... 259 Calliphylloceras sp. A...... 51 --- d. mixta...... 205 sp. B...... 52 --- nagaiwaensis ...... 203 Cannosphaeropsis sp...... 334 oregonensis ...... 155 Cardilia d. toyamaensis...... 352 --- postmosquensis ...... 377 Cavusgnathus charactus ...... 192 --- postnagaiwaensis ...... 204 vegularis...... 419 ---- ultragigantea ...... 202 Cerithidea sp...... 285 sp. A of SADA & DANNER, Chojfatia (Subgrossouvia) sp...... 429 1973...... 157 Clementia nakamurai ...... 277 --- sp. A of KOBAyASHI...... 205 Columbites ...... 301 --- sp. A of SADA & DANNER, --- parisianus ...... 301 1974...... 261 Cordosphaeridium d. uncinispinosum 328 sp. B of KOBAYASHI... . . • • . •• 206 Coscinodiscus temperi ...... 134 sp. B of SADA & DANNER.... 261 Crassostrea gravitesta eoilensis ...... 274 Epigondolella nodosa ...... 435 448 Nos. 89"-'96 (1973, 1974) F Hildoceras aff. bifrons ...... 10 Hindeodella sp...... 198 Fagesia 31 --- cf. rudra ...... 34 Holcophylloceras sp...... 52 --- thevestensis ...... , ...... 32 Hypophiceras? sp...... 237 Felaniella usta ...... 94 Hystrichokolpona denticulata ...... 330 Fusulinella hayasakai ...... , ...... 389 --- elliptica ...... 330 --- jamesensis 390 --- rigaudae ...... 331 Hystrichosphaeridium? sp...... 332 G I Geloina yamanei...... 348 Geniculatus claviger...... 192 Idiognathodus sp ...... , ...... , ... 423 yuasai ...... 242 Globigerina angustiumbilicata ...... 118 Inoceramus --- praebulloides praebulloides .... 117 (Sphenoceramus) naumanni --- pseudociperoensis ...... 118 naumanni ...... 170 umbilicata ...... 148 (---) schmidti .. 182 woodi ...... 118 Isastrea? sp...... 22 " Globigerina" pachyderma ...... 148 I sculitoides ...... 300 Globigerinita glutinata ...... 120 --- aff. originis ...... 300 Globigerinoides japonicus ...... 121 Globoquadrina obesa...... 121 L Globorotalia birnageae...... 118 Leiophyllites sp...... 307 --- canariensis ...... 122 Limopsis tokaiensis ...... ,...... 94 --- denseconnexa ...... 119 Lingulodinium machaerophorum ...... 335 --- peripheroronda ...... 119 Lonchodina furnishi ...... 194 ---- quinifalcata ...... 119 Lytophiceras aff. ptychodes ...... 234 --- scitula praescitula ...... 122 Lytoceras sp. A ...... 49 Glyptophiceras sp...... 236 --- sp. B...... 50 Gnathodus akyioshiensis ...... 192 Gnathodus cf. bassleri bassleri ...... 419 M --- bilineatus...... 193,419 Macoma calcarea ...... 94 --- commutatus...... 193,420 Martinia sp...... 109 --- homopunctatus ...... 194 Melosira sulcata...... 134 --- nagatoensis ...... , 421 Mercenaria stimpsoni ...... 94 --- nodosus ...... 194, 421 Millerella bigemmicula ...... 208 --- opimus ...... 421 --- marblensis ...... 207,257 --- aff. texanus ...... 194 Moniopterus ...... 368 --- sp. (n. sp.?) ...... 421 --- japonicus ...... 368 Gondolella fujimotoi ...... 422 Mourlonia hayasakai ...... 96 Gonyaulacysta sp. a ...... , 325 Mya cuneiform is ...... 94 Grammoceras aff. obesum 11 N H Nankinella plummeri ...... 261 Harpoceras (Harpoceras) chrysanthemum 1 --- yokoyamai ...... 378 (---) cf. exaratum ...... 7 Neoprioniodus montanaensis ...... 195 ( ) inouyei ...... 4 scitulus ...... 195 ( ) cf. mulgravium .... 5 Nitzschia extincic ...... 134 (Harpoceratoides) nagatoensis.. 7 Nuculana robai ...... 94 Harpophylloceras? sp...... 53 Hepaticites oishii ...... 25 o Hexaphyllia sp...... 157 Operculodinium centrocarpum 336 Index of Families, Genera and Species 449

Ophiceras sp...... 235 Rugicostella sakagamii 104 Oxinagnathus corrugatus·...... 423 Ozarkodina delicatula...... 195 ·s sp...... 198 Schematophora cf. speciosa ...... 334 Ozawainella angulata ...... 380 Schizophoria resupinata ...... 101 --- cf. brazhnikovae ...... 209 Soletellina minoensis ...... 278,352 --- vozhgalica ...... 379 Spathognathodus campbelli ...... 195 --- sp. A ...... 209 --- cristulus ...... 196

--- sp. B ...... 210 Spirifer sp ...... 0 •• •• •• •• •• •• ••• 110 Spiniferites aff. buccinus ...... 325 p --- mirabilis ...... 326 Panope cf. nomurae ...... 278 --- ramosus ...... 326 Parafusulina laudoni ...... 78 ---sp. a ...... 327 --- mongeri ...... 77 Stacheites sp ...... 305 Parastaffella cf. vlerki ...... 216 Staffella akagoensis ...... 379 --- sp. A ...... 217 ---sp...... 217 --- sp. B ...... 217 Stylina kantoensis ...... 20 Permundaria asiatica ...... 315 Subcolumbites perrinismithi 302 --- tenuistriata ...... 317 Peronoceras subjlbulatum '" ...... 47 T

Phymatoceras toyoranum...... 12 Tanyosphaeridium fusiformis ..... 0 •••• 332 --- sp...... 13 Tectatodinium sp ...... 337 Planammatoceras cf. kitakamiense...... 46 Tectonatica tugaruana ...... 94 Prejlorianites ...... 298 Thalassionema nitzschioides ...... 134 --- aff. sulioticus ...... 298 Thalassiosira antiqua ...... 134 Prenkites ...... 303 --- decipiens...... 134

--- cf. timorensis ...... 303 --- lineata ...... 0 ••••• 134 --- sp ...... 304 Thallites yabei ...... 26 Profusulinella daiyamensis ...... 382 Thamnasteria huzimotoi ...... 18 --- cf. daiyamensis ...... 213 ---sp. A ...... 19

--- omiensis ...... 0 •• 382 ---spo B ...... 19 --- probiconica ...... 383 Thracia kakumana ...... 94 --- pseudorhomboidea ...... 0.. 384 Thyasira sp...... 276 --- sp. A ...... 384 Trigoniooides (Trigonioides) ...... 396 --- sp. B ...... 386 --- ( ) kodairai...... 396 --- sp ...... 213 Trigonioides (Kumamotoa) ...... 405 Pseudofusulinella danneri ...... 75 --- ( ) matsumotoi 408 Pseudolioceras sp...... 9 ---- ( ) mifunensis ...... 408 Pseudostaffella antiqua ...... 210 ( ) suzukii ...... 408 Trocharea sp ...... 22 --- japonica ...... o. 0 211 Turricula kaderleyi ...... 94 --- kanumai ..... o ••••• o. • • • • • • • •• 386 ---? sp ...... 211 Turritella nipponica ...... 94 --- saishuensis motidukii ...... 94 R u Raymondaspis gregarius ...... 0" 354 Rectiplanes sadoensis ...... 94 Umbonium (Suchium) akitanum ...... 94 Rhaphoneis angustata ...... 134 Undaria sp...... 107 --- margaritalimbata ...... 134 --- surirella 0•.••..•.••...... 0... 134 v

--- tatsunokuchiensis ...... o •• 134 Vascoceras 28 450 Nos. 89rv96 (1973, 1974:)

--- aft. durandi 29 --- ishiiant 279 Verella sp...... 214 ---.sp...... 280 Vicarya callosa japonica ...... 352 --- (Shoshi',:oia) callosa japonica .. 278 w Vicary.ella bacula.:: ...... 352 Wakinoa wakinoensis .: .. : .. ~ ... : •.•... 408 Transactions and Proceedings

of the Palaeontological Society of Japan

New Series

No. 89-vNo. 96

1973-1974

Palaeontological Society of Japan The heading in Japanese commemorates the handwriting of Prof. Matajiro YOKOYAMA, father of Japanese palaeontology, who was a professor of stratigraphy and palaeontology at the Geological Institute, Imperial University of Tokyo.

Fossil on the cover is Bellerophon jonesianus DE KONINCK from the Late Per­ mian Aakasaka Series in Gifu Prefecture. CONTENTS

Number 89 (Published April 20, 1973) Transactions

Article .:] Page Plate 611. HIRANO, Hiromichi: Biostratigraphic study of the Jurassic To- yora Group. Part II ...... ~ ...... 1-14 1-4 612. NISHIMIY A, Katsuhiko and Y AMAGIW A, Nobuo: Coral fossils from the Kosode Formation, Yamanashi Prefecture ...... 15-23 5-6 613. HUZIOKA, Kazuo and T AKAHASI, Eitaro: A Triassic Hepatica from the Omine coal-field, Southwest Honshu, Japan...... 24-26 7 614. MATSUMOTO, Tatsuro: Vascoceratid ammonites from the Turo­ nian of Hokkaido (Studies for the Cretaceous ammonites from Hokkaido and Saghalien-XXVI) ...... 27-41 8 Proceedings ...... 42-44

Number 90 (Published June 20, 1973)

Transactions 615. HIRANO, Hiromichi: Biostratigraphic study of the Jurassic To- yora Group. Part III ...... 45-71 9-10 616. SAD A, Kimiyoshi and DANNER, Wilbert R.: Early Permian Para­ fusulina and Pseudofusulinella from the Chilliwack Group, south- western British Columbia ...... 72-80 11-13 617. CHINZEI, Kiyotaka: Omma-Manganjian molluscan fauna in the Futatsui area of northern Akita, Japan ...... 81-94 14 618. SAKAGAMI, Sumio: Early Carboniferous Visean faunas discov­ ered from Mitsuzawa, southeastern part of the Kwanto Massif. Part I. Gastropods ...... 95-98 619. YANAGIDA, Juichi: Early Carboniferous Visean faunas discov­ ered from Mitsuzawa, southeastern part of the Kwanto Massif. Part II. Brachiopods ...... 99-112 15-16 ii

Number 91 (Published September 20, 1973)

Transactions 620. SAITO, Tsunemasa and MAIY A, Seijuro: Planktonic Foraminifera of the Nishikurosawa Formation, Northeast Honshu, Japan .... 113-125 17-19 621. KOIZUMI, Itaru: Marine diatom flora of the Pliocene Tatsuno- kuchi Formation in Miyagi Prefecture ...... 126-136 20 622. UJIIE, Hiroshi and ICHIKURA, Masaki: Holocene to uppermost Pleistocene planktonic foraminifers in a piston core from off San'in district, Sea of Japan ...... 137-150 21-22 623. SADA, Kimiyoshi and DANNER, Wilbert R.: Late Lower Car­ boniferous Eostaffella and Hexaphyllia from central Oregon U. S. A ...... 151-160 23-24 Proceedings ...... 161-162

Number 92 (Published December 20, 1973) Transactions

624. TANABE, Kazushige: Evolution and mode of life of Inoceramus (Sphenoceramus) naumanni YOKOYAMA emend., an Upper Creta- ceous bivalve ...... 163-184 27-28 625. IGo, Hisaharu: Lower Carboniferous conodonts from the Akiyo- shi Limestone Group, southwest Japan ...... 185-199 29 626. KOBAYASHI, Fumio: Fusulinids of the Nagaiwa Formation .... 200-219 30-31 Proceedings ...... 221-226

Number 93 (Published April 20, 1974) Transactions 627. KAPOOR, Hari Mohan and BANDO, Yuji: Report of Lower Trias from Pir Panjal, near Qazigund, Kashmir, India, with description of a few ammonoids ...... 227-239 32-33 628. NODA, Masayuki: A new species of Inoceramus from the Shi- mantogawa Group of south Shikoku ...... 240-248 34 629. SADA, Kimiyoshi and DANNER, Wilbert R.: Early and middle Pennsylvanian fusulinids from southern British Columbia, Canada and northwestern Washington, U. S. A...... 249-265 35-37 iii

630. KIM, Bong Kyun, NODA, Hiroshi and YOON, Sun: Molluscan Fossils from the Miocene Eoil Formation, Gampo and Ulsan districts, southeastern side of Korea ...... 266-285 38-39 Proceedings ...... 286-292

Number 94 (Published June 30, 1974)

Transactions 631. BANDO, Yuji and SHIMOYAMA, Shoichi: Late Scythian ammo- noids from the Kitakami Massif ...... 293-312 40-42 632. T AZAWA, Jun-ichi: Two species of Permundaria from the Kita- kami Mountains, Northeast Japan ...... 313-318 43 633. MATSUOKA, Kazumi: Some plant microfossils from the Mio- ceene Fujiwara Group, Nara, central Japan ...... 319-340 44-49

Number 95 (Published September 20, 1974) Transactions 634. OKAMOTO, Kazuo and TERACHI, Masami: Miocene molluscs from the Bihoku Group at Miyauchi-cho, Shobara City, South- west Japan ...... 341-352 47 635. Hu, Chung-Hung: Ontogenies of two Middle Ordovician trilo- bites from the Edinburg Formation, Virginia ...... 353-363 48-49 636. HATAI, Kotora, MASUDA, KOichiro and NODA, Hiroshi: Marine fossils from the Moniwa Formation along the Natori River, Sendai, Northeast Honshu, Japan. Part 2. Problematica from the Moniwa Formation ...... 364-370 50 637. WATANABE, Kozo: Profusulinella assemblage in the Omi Lime­ stone, Niigata Prefecture, central Japan. (Studies of Carbon- iferous fusulinacean of Omi, Part I) ...... 371-394 51-53 638. YANG, Seong-Young: Note on the genus Trigonioides (Bivalvia) 395-408 54-55 Proceedings ...... 410

Number 96 (Published December 20, 1974) Transactions 639. IGo, Hisayoshi and KOBAYASHI, Fumio: Carboniferous cono- donts from the Itsukaichi district, Tokyo, Japan ...... 411-426 56 iv

640. SATO, Tadashi: A Jurassic ammonite from near Inuyama, north of Nagoya ...... 427-432 641. KOIKE, Toshio and ISHIBASHI, Takeshi: Upper Triassic cono- donts from Okinawa-jima ...... 433-436 57 642. BURCKLE, Lloyd H.and TODD, Alayne: Size differences in the diatom, Annellus califol'nicus TEMPERE ...... 437-441 Proceedings ...... 443 Members of the Palaeontological Society of Japan

November 30, 1974

Patron Members...... 11 Honorary Members...... 6 Regular Members ...... 305 * Fellows...... 137 • Foreign Members...... 55 514

Abbreviations of the fields of study

Ag. Applied geology Mg. Marine geology Biost. Biostratigraphy Mo. Molluscs Brach. Brachiopods Nannopl. Nannoplankton C Cenozoic P Paleozoic Cephal. Cephalopods Pg. Petroleum geology Conod. Conodonts R Recent Foram. Foraminifers Radiol. Radiolarians Fusul. Fusulinids Rg. Regional geology Gg. General geology St. Stratigraphy Gp. General paleontology Sd. Sedimentology Hg. Historical geology Tg. Tectonic geology M Mesozoic 2

Patron Members

IDEMITSU EXPLORATION CO., OA­ KANTO NATURAL GAS DEVELOP­ P AN SEA) LTD., 3-1-1, Marunouchi, MENT CO., 2-1-1, Muromachi, Nihon­ Chiyoda-ku, Tokyo (100). bashi, Chuoku, Tokyo (103). IRANIAN PETROLEUM CORPORA­ MIDDLE EAST OIL CO., Shinmarubiru TION, Friend Bldg., 2-4-11, Nagata­ 6F, Marunouchi, Chiyoda-ku. Tokyo cho, Chiyoda-ku, Tokyo (100). (100). ]APAN PETROLEUM DEVELOPMENT MITSUBISHI PETROLEUM DEVELOP­ CORPORATION, TECH. RES.­ MENT CO., LTD., Room No. 562, CENTER, 18th Mori Bldg.-Nigokan, Nippon Bldg., 2-6-2, Ohtemachi, Chi­ 20 Akefune-cho, Shiba-Nishikubo, yoda-ku, Tokyo (100). Minato-ku, Tokyo (105). MIZUHO ROCK PRODUCTION CO., ]APAN PETROLEUM EXPLORATION LTD., 8-877, Nariki, Ome City, Tokyo CO., LTD., Ohtemachi Bldg., 1-6-1, (198). Ohtemachi, Chiyoda-ku, Tokyo (100). SG GIKEN CO., Chiyoda Bldg., 4504 ]APEX INDONESIA CO., LTD., 15th Kengun-machi, Kumamoto (862). Mori Bldg. 7F, Akefune-cho, Shiba­ TEIKOKU OIL CO., LTD., 1-31-10, Hata­ Nishikubo, Minato-ku, Tokyo (105). gaya, Shibuya-ku, Tokyo (151).

Honorary Members

FU]IMOTO, Haruyoshi (iIi*ra~) D. Sc., KOBA YASHI, Teiichi ('N%R -) D. Sc., 1-32-8, Ehara-cho, Nakano-ku, Tokyo 5-50-18, Yoyogi, Shibuya-ku, Tokyo (165) Biost., Fusul., Corals. (151) Trilobites, Nautiloids. HANZA WA, Shoshiro (¥iRIEIm~~) D. KONNO, Enzo (4-lfP3iil) D. Sc., 9266 Sc., 2-34-16, Tomizuka, Sendai (982) Yanagi-machi, Higashine City, Yama­ Biost., Foram. gata Pref. (999-37) P-M Plants. HAYASAKA, Ichiro (4!Wi-~~) D. Sc., MAKIY AM A, ]iro (mllJ~~~) D. Sc., 22 2228 Ohkura-cho, Machida, Tokyo Haruna-cho, Sakyo-ku, Kyoto (606) (194-01) P-Invertebrates (Corals, C-Mo., Mammals, Tg. Brach., Echinoderms.)

Regular Members, Fellows and Foreign Members

AKAGI, Saburo (w*.:::~~) D. Sc., Fac. Tokyo (190-11) Diatoms., Biost. Educ., Tottori Univ., Tottori (680) *AKUTSU, ]un (j!liJ~~$lIi) D. Sc., Dept. Quaternary geol. Geol., Fac. Liberal Arts, Utsunomiya AKIBA, Fumio (:pj(~Xt$) Tech. Lab., Univ., Utsunomiya (320) C-R Diatoms. Japan Petrol. Expl. Co., 3190-1 Musa­ *AMANO, Masahisa (;Rlf l§~) D. Sc., shino, Hamura-cho, Nishitama-gun, Dept. Geol., Fac. Sci., Kumamoto 3 Univ., Kumamoto (860) Mo., St. • BURCKLE, Lloyd, Ph. D., Lamont­ ·ANDAL, Pacita P., Bureau of Mines, Doherty Geological Observatory, Herran St., Manila, Philippines, Palisades, New York 10964, U. S. A_, Larger Foram. Diatoms. ANDO, Yasuji ('ti:J!if*=) 4-15-9, Taidera, ·BURTON, Cedric Keith, P. T. Ken­ Akashi City, Hyogo Fref. (673) Mo. necott, 10 Jalan Mutiara, Singapore AOKI, Naoaki (W*®:ai"!) D. Sc., Inst. 10, Malaysia. Geol. & Miner., Fac. Sci., Tokyo ·CHANG, Li-Sho ('*Jit1l!!) D. Sc., Geol. Univ. of Educ., Otsuka, Tokyo (112) Surv. Taiwan, Taipei, Taiwan, China, C-Foram., St. C-St., Foram., Mo. AOSHIMA, Mutsuharu (w~I@l'El) Geol. *CHIjI, Manzo (T:tt!!75~) D. Sc., Osaka Inst., Fac. Sci., Univ. Tokyo, Hongo, Mus. Nat. Hist., Nagai Park, Osaka Tokyo (113) Paleoecol., Foram. (546) St., Foram. AOYAMA, Hisatomo (W!1Ii'i6:o.) c/o *CHINZEI, Kiyotaka (~ggm-~) D. Sc., Teacher's House K, 7985 Miyakobaru-­ Geol. Inst., Fac. Sci., Univ. Tokyo, cho, Miyakonojo, Miyazaki Pref. (885) Hongo, Tokyo (113) Mo., Paleoecol.; Paleoecol., Trace-fossils. Biost. *ARAI, Juzo (;m:j:j:m=:) D. Sc., Dept. CHISAKA, Takeshi (T:!tUlt~) D. Sc., Geosci., Fac. Educ., Saitama Univ., Dept. Geol., Fac. Educ., Chiba Univ., Urawa (338) Sd. (280) Fusul. ARAKI, Y oshio (m*~.) D. Sc., Earth CHOI, Dong Ryong (,*3Ifll'~) D. Sc., Ko­ Sci. Dept., Fac. Liberal Arts, Mie kusai Aerial Survey Co. Ltd., Hino Univ., Tsu (514) St., Mo. Tech. Office, 3-6-1, Asahigaoka, Hino ARIKAWA, Ryuichi (~)lI~-) Inst. City, Tokyo (102) P-St., Gp.; Ag. Geol. & Paleont., Fac. Sci., Tohoku ·CORGAN, James X., Dept. Geogr. & Univ., Aobayama, Sendai (980) Foram., Geol., Austin Peasy State Univ., Clar­ St. ksville, Tennessee, U. S. A. ASAGA, Masayoshi (~~IE~) Sakura .DANNER, Wilbert Roosevelt, Ph. D., HighSchool, Miroku-cho, Sakura, Dept. Geol., Univ. British Columbia, Chiba Pref. (285) Mo. Vancouver, B. c., Canada. *ASAMA, Kazuo (~rl3'-!f.l) D. Sc., Dept. • DEHN, Richard, D. Sc., Inst. Palaont. Paleont., Natn. Sci. Mus., 3-23-1, & Hist. Geol., Univ. Miinchen, Wagner­ Hyakunin-cho, Shinjuku-ku, Tokyo Strasse, Miinchen, Deutschland, Ver­ (160) P-M Plants, Evolution. tebrates. ASAMI, KIYOHIDE (1:ltJ!m'3I§) 3-1-17, DOI, Seima (±j:j:m-~) Sanyo Hydrogra­ Higashiterao, Tsurumi-ku, Yokohama phic Survey Co., 5-23-7, Shinbashi, (230). Minato-ku, Tokyo (105) Mg. *ASANO, Kiyoshi (~!l!Jm-) D. Sc., 41 ·DOWLEN, Robert John, 730 Beryl St., Kinoshita, Sendai (983) Biost., C­ San Diego, California, 92109, U. S. A. Foram. Invertebrate paleont. *BANDO, Yuji (:j!szJIHilR]) D. Sc., Dept. .DURHAM, John Wyatt, Ph. D., Dept. Geol., Fac. Educ., Kagawa Univ., Paleont., Univ. Calif., Berkeley, Calif. Takamatsu (760) M-Cephal., St. 94720, U. S. A. .BARKER, Reginald Wright, 5120 Pal­ *EGUCHI, Motoki (rr P5G~) D. Sc., Tokyo metto, Bellairs, Texas 77410, U. S. A. College of Domestic Science, 1-1-18, C-R Foram., St. Kaga, Itabashi-ku, Tokyo (173) Cni- 4 daria (C-R Corals). Tokyo (113) Vertebrates. ETO, Tetsuto (m1ilf~f.A) Geol. Inst., Fac. .GUVEN~, T., Geo1. Div. of Mineral Educ., Yokohama Natn. Univ., Tokiwa­ Res. & Expl. Inst., PK-116, Ankara, dai, Yokohama (240) Foram. Turkey, P-Calcareous Algae, Foram. ETO, Toshiharu (miJi~7El) Lab. Earth *HABE, Tadashige (mttflHit',m) D. Sc., Sci., Fac. Gen. Educ., Gifu Univ., Dept. Zoo1., Natn. Sci. Mus., 3-23-1, Gifu (500). Hyakunin-cho, Shinjuku-ku, Tokyo *FUJI, Norio (iJiJlUt$) Inst. Geol., Fac. (160) Malacology. Educ., Kanazawa Univ., Kanazawa .HABIB, Daniel, Ph. D., Lamont-Doherty (920) Palynology. Geological Observatory, Palisades, *FU]Il, Shoji (iJi:Jt.IlB=) D. Sc., Dept. New York 10964, U. S. A., Palynology. Geol., Toyama Univ., Toyama (930) HADA, Shigeki (mtlEm~) D. Sc., Inst. CoMo. Geol., Fac. Literature & Sci., Kochi FUJI SHIMA, Yasutaka (iJi~~[i) Geol. Univ., Kochi (780) Structural geol. Surv. of Hokkaido Colliery & Steam­ HAIKA W A, Takehiko (12J11 Ji:t~) Akiyo­ ship Co., Ltd., 2-4 Shikanotani, Yu­ shidai Sci. Mus., Shuho-cho, Yama­ bari, Hokkaido (068-04) Mo. guchi Pref. (754-05) Fusul., Corals. FUJITA, Ikuo (iJilE1i~Il) Nishi 4-jo, Kita HAMADA, Jun-ichi (~1E11Ml-) 1823-3 5-chome, Sunagawa (073-01) St., Gp., Igisue, Tonosho-cho, Shozu-gun, Trace fossils. Kagawa Pref. (761-42) P-St., Trilo­ FUJIYAMA, Ienori (iJi!1l*~) D. Sc., bites. Dept. Paleont., Natn. Sci. Mus., 3-23- *HAMADA, Takashi (~IE~±) D. Sc., 1, Hyakunin-cho, Shinjuku-ku, Tokyo Dept. Earth Sci. & Astron., ColI. Gen. (160) Paleo entomology. Educ., Univ. Tokyo, Komaba, Tokyo FUKUDA, Atsuo (:ffii1E7$1c) D. Sc., Oyo (153) Corals, Brach., Trilobites. Corporation Ltd., 3-2-1, Otsuka, Bun­ • HAMLIN, William Henry, Atlantic kyo-ku, Tokyo (112) Ammonites. Richfield, Box 1981, Corpus Christi, FUKUDA, Yoshio (:ffiiIE%'~) 1585 Yotsu­ Texas 78403, U. S. A. kaido-machi, Inba-gun, Chiba Pref., *HANAI, Tetsuro (;{E:Jt.l!f~~) D. Sc., Geol. (284) Crustacea, Paleoecol. Inst., Fac. Sci., Univ. Tokyo, Hongo, *FUKUTA, Osamu (:ffiiIE~) Feul Dept., Tokyo (113) Paleo bioI. (Ostracodes). Geol. Surv. Japan, Tokyo Office, 8 HARA, Takuro (W:Jji£l~) Ikumo, Ato-cho, Kawada-cho, Shinjuku-ku,T okyo(162). Abu-gun, Yamaguchi Pref. (759-13) FUKUTOME, Takaaki (:ffii-liji1ij§.g) Inst. Mammals. Geo1. & Paleont., Fac. Sci., Tohoku HARIU, Shiny a (tr~.il1) 29 Futatsuya­ Univ., Aobayama, Sendai (980). cho, Kanagawa, Yokohama (221) FURUKAWA, Takaharu (iiJll[i~) Ni­ Micropaleont. geria Oil Co., Ltd., Kusuda Bldg., *HASE, Akira (*~~) D. Sc., Inst. Geol. 1-5-11, Nishi-Shinbashi, Minato-ku, & Miner., Fac. Sci., Hiroshima Univ., Tokyo (105) Gg., Gp. Hiroshima (730) St, Rg. GOTO, Hiroya (~iJif:f~) Inst. Earth HASE, Kotaro (*~!U.*~~) D. Sc., Hase Sci., Fac. Gen. Educ., Kobe Univ., Geol. Surv. Office, 3-5-8, Honcho, Tsurukabuto, Kobe (657) Fusu1., St. Sendai (980) Gg. GOTO, Masatoshi (~iJit:fl&) Dept. Oral HASEGAWA, Junichi (*~J117$-) 2642-1 Anatomy, Sch. of Dentistry, Tokyo Ushirodani, Sakado-machi,Irima-gun, Medical & Dental Univ., Yushima, Saitama Pref. (350-02). 5

HASEGAWA, Shiro (*1§'- JIIIm~~) Inst. Dept. Geol., Aichi Univ. of Educ., Geol. & Paleont., Fac. Sci., Tohoku Kariya City, Aichi (448) C-Mo. Univ., Aobayama, Sendai (980) Biost. HA YASHI, Tokue (;f..1\fi&(fCi!j) 1901 Ishida­ HASEGAWA, Yasuo (*1§'- JII.5lt&lll) D. Sc., machi, Iki lsI., Nagasaki Pref. (811- 5-3-44, Higashi-honcho, Joetsu City, 52) St., Plants, Pisces. Niigata Pref. (943) Diatoms. HIGUCHI, Yu (m o &Ill) D. Sc., Japan *HASEGA W A, Yoshikazu (*1§'- 111 ~;fQ) Petrol. Expl. Co., Akita Branch, D. Sc., Dept. Paleont., Natn. Sci. Mus., Nakamura-shimizuden, Kawashiri­ 3-23-1, Hyakunin-cho, Shinjuku-ku, machi, Akita (010) Pg., Foram. Tokyo (160) Vertebrates. HIRANO, Hiromichi (3JZlIlf5J,:@:) D. Sc., *HASEGA W A, Yoshiyuki (*1§'- JII ~fi) D. Dept. Geol., Fac. Sci., Kyushu Univ., Sc., Dept. Earth Sci., Fac. Gen. Educ., Hakozaki, Fukuoka (812) Evolution, Niigata Univ., Niigata (950-21) P­ Systematics. Foram. HIRATA, Motome (3JZEBJtIj) 17 Atago­ *HASHIMOTO, Isamu (~*~) D. Sc., yama, Kochi (780). Inst. Earth Sci., ColI. Gen. Educ., *HIRA Y AMA, Katsumi (3JZIllJm~) D.Sc., Kyushu Univ., Ropponmatsu, Fukuoka Geol. Lab., St. Paul's (Rikkyo) Univ., (810) St. 3 Nishi-Ikebukuro, Toshima-ku, HASHIMOTO, Kyoichi (m*~-) Kami­ Tokyo (171) C-Mo. yasaka, Tokuji-cho, Saba-gun, Yama­ HISAMITSU, Masao (~Jf[;IE&IIl) Tomita, guchi Pref. (747-03) Fusul., Corals. Koromokawa-mura, 19awa-gun, Iwate *HASHIMOTO, Wataru (m*13) D. Sc., Pref. (029-43) Fusul. Inst. Geol. & Miner., Fac. Sci., Tokyo HIT AKA, Minoru ( B f.Ij~) 170 Hoso, Univ. of Educ., Otsuka, Tokyo (112) Oita City (870-03) Quat. geol. St., Stromatoporoides, Larger Foram. • HOARE, Richard D., Ph. D., Dept. Geol., *HATAE, Nobuhiro (~~rrffiJA) D. Sc., Bowling Green State Univ., Bowling Daigo, Dazaifu-machi, Tsukushi-gun, Green, Ohio 43403, U. S. A. Fukuoka Pref. (818-01) Mo. HOJO, Yoshio (~t~:WL~) 1 Wakaba, *HATAI, Kotora (~:jf+.re) D. Sc., 2-14- Yahata-ku, Kitakyushu (806) C-Plants. 21, Asahigaoka, Sendai (983) Hg., HONDA, Hiromi (*EBifB) Geol. Inst., Brach., Mo., Trace-fossils. Fac. Sci., Univ. Tokyo, Hongo, Tokyo HATTORI, Mutsuo (ij[Hml!t~) D. Sc., 4- (113) Paleoecol. 2-1, Hisagi, Zushi City (249) Sd. HONDA, Yutaka (*EBW) Inst. Min. Geol., *HA YAMI, Itaru (~7km-) D. Sc., Univ. Min. CoIl., Akita Univ., Akita (010) Mus., Univ. Tokyo, Hongo, Tokyo C-Mo. (113) Bivalves, Evolutionary bioI. ·HONJO, Susumu (*Et~) D. Sc., Woods HAYAMI, Tomoko (~7k.g!,T) D. Sc., Hole Oceanogr. Inst., Woods Hole, Dept. Geol., Fac. Sci., Ehime Univ., Mass. 02543, U. S. A. Matsuyama (790) C-Bryozoans. HORIGUCHI, Mankichi (:I1iii 0 JJE') Dept. *HA Y ASAKA, Shozo (.!f!.:!&*f.'::::) D. Sc., Earth Sci., ColI. Liberal Arts, Sai­ Inst. Earth Sci., Fac. Sci., Kagoshima tama Univ., Urawa (338) Calcareous Univ., Kagoshima (890) C-Mo. Algae. HAYASHI, Shingo (;f..1\ffi'ffr) Omama High HORIGUCHI, Toshiaki (1ftij omttk) Chichi­ School, 198 Kiribara, Omama-machi, bu Cement Co., Ltd., 4-8-17, Hongo, Gunma Pref. (376-01) Conod. Bunkyo-ku, Tokyo (113) Gp. HAYASHI, Tadaichi (;f..1\IIl-) D. Sc., *HORIKOSHI, Masuoki (1ftij~:lt~) D. Sc., 6

Ocean Res. Inst., Univ. Tokyo, 1-15- IKUjl, Yukio (~~¥~) Tech. Lab., 1, Minamidai, Nakano-ku, Tokyo (164) japan Petrol. Expl. Co., 3190-1 Mu­ CoR Mo., Marine benthic community sashino, Hamura-cho, Nishitama-gun, ecol. Tokyo (190-11) Foram. ·HU, Chung-Hung ("~,%',m) Ph. D., Dept. 1M AI, Toyoji (4-;Jf:l:=) 32-8 Akebono­ Earth Sci., Cheng Kung Univ., Tai­ cho, Senju, Adachi-ku, Tokyo (120). nan, Taiwan, China. Trilobites. *IMAIZUMI, Rikizo (4-7'R:iJMl) D. Sc., ·HUANG, Tun-Yow (jllt!c:bt) Taiwan Dept. Earth Sci., ColI. Art & Sci., Petrol. Expl. Div., Chinese Petrol. Tohoku Univ., Kawauchi, Sendai (980) Corpor., 46 Chung Cheng Road, Miaoli, Fossil Crabs, M-Algae. Taiwan, China, C-Foram. *IMAMURA, Sotoji (4-M?'f.~) 4-163-10, *HUZIOKA, Kazuo (~Wd-~) D. Sc., Takasu, Hiroshima (733) St. Inst. Min. Geol., Min. CoIL, Akita IMAMURA, Tadahiko (4-M ,%,,~) 3-138, Univ., Akita (010) M-C Plants. Seto-nishimachi, Kochi (781-02) Gg. IBARAKI, Masako (~*~T) Geol. Inst., *IMANISHI, Shigeru (4-gg£t) D. Sc., Fac. Sci., Shizuoka Univ., Shizuoka Dept. Geol., Fac. Gen. Educ., Kuma­ (420) Foram. moto Univ., Kumamoto (860) Biost. *ICHIKAWA, Koichiro (mJII7*-~~) D. INADA, Takuji (fmEHlji!1:J c/o Mr. Uraki, Sc., Dept. Geosci., Fac. Sci., Osaka 1-27-7, Senkawa-cho, Chohu, Tokyo City Univ., Osaka (558) M-Mo., Radiol. (182) Quaternary research. *ICHIKAWA, Wataru (mJllill) D. Sc., • INGA VAT, Rucha, Dept. Miner. Re­ 2-28-12, Ishibiki-cho, Kanazawa (920) sources, Rama VI Rd., Bangkok, CoR Diatoms., Silicoflagellates. Thailand. ICHIKURA, Masaki (m1t~~) c/o Mr. INOMA, Akitoshi (~ri'l'§JH~) japan Petrol. Fujita, 119 Sachigaoka, Asahi-ku, Expl. Co.·, 5th Fl., Ohtemachi Bldg., Yokohama (241). 1-6, Ohtemachi, Chiyoda-ku, Tokyo IEDA, Kyoichi G~UB}j!:-) 1-3-2, Sakura­ (100) Pg. guchi-cho, Nada-ku, Kobe (657) St., INOUE, Eiji (;JfJ:~=) D. Sc., Geol. Surv. Radiol. japan, 135 Hisamoto-cho, Kawasaki IGO, Hisaharu (~ml?..~) Dept. Astron. (213) Mg., Coal geol. & Earth Sci., Tokyo Gakugei Univ., INOUE, Masaaki (ft: J:1HB) 4-3-3, Kami­ Nukui-kitamachi, Koganei, Tokyo yoga, Setagaya-ku, Tokyo (158) (184) Conod., Fusul. Paleoecol. *IGO, Hisayoshi (~ml?..~) D. Sc., Dept. INOUE, Masao (ft: J:~1<:) Ocean Res. Geosci., Univ. Tsukuba, Sakura-mura, Inst., Univ. Tokyo, 1-15-1, Minamidai, Ibaraki Pref. (300-31) Conod., Fusul., Nakano-ku, Tokyo (164) Sd. Corals. INOUE, Takeshi (ft: J:1ft) D. Sc., Min. *IKEBE, Nobuo (ftllmj!~) D. Sc., Dept. CoIl., Akita Univ., Akita (010) St. Geosci., Fac. Sci., Osaka City Univ., ISHIBASHI, Takeshi (:Efrt~) D. Sc., Dept. Osaka (558) C-Biost. Geol., Fac. Sci., Kyushu Univ., Hako­ IKEDA, Tadashi (111! IE iE) Dept. Earth zaki, Fukuoka (812) M-Cephal. Sci., Nara Univ. of Educ., Takenaka­ ISHIDA, Masao (:EEHlE1<:) Geol. Surv. cho, Nara (630) Foram. japan, Hokkaido Branch, Minami-I, *IKEY A, Noriyuki (ftll~fmz.) D. Sc., Nishi-18, Sapporo (060) St. Geol. Inst., Fac. Sci., Univ. Tokyo, *ISHIDA, Shiro (:EEH~WD D. Sc., Dept. Hongo, Tokyo (113) Foram. Geol. & Miner., Fac. Sci., Kyoto Univ., 7 Kyoto (606) St., Plants. • JORDAN, Reiner, Niedersachisches *ISHII, Atsushi (:;PiHi) D. Sc., Dept. Landesant fUr Bodenforschung, 3 Astron. & Earth Sci., Tokyo Gakugei Hannover-Buchholoz Alfred-Bentz­ Univ., Nukui-kitamachi, Koganei, Haus, W. Germany, M-Mo., Ammo­ Tokyo (184) P-Fusul., Rg. nites. *ISHII, Kenichi (:;ptt-fm-) D. Sc., Dept. • KAHLER, Franz, Ph. D., Klagenfurt, Geosci., Fac. Sci., Osaka City Univ., Tarviserestrasse 28, Austria. Osaka (558) Biost., Fusul. KAMADA, Hiroshi ($iEEl'1lf~) Japan *ISHI]IMA, Wataru (:;P~~) D. Sc., 1- Petrol. Expl. Co., Otemachi Bldg., 1- 20-8, Momoi, Suginami-ku, Tokyo 6-1, Otemachi, Chiyoda-ku, Tokyo (167) Algae. (100) Pg., St., Foram. ISHIKAWA, Sei (:;PJlllE) 462 Nakanuma, *KAMADA, Yasuhiko (~EE~~) D. Sc., Minamiashigara-machi, Ashigarakami­ Dept. Geol., Fac. Educ., Nagasaki gun, Kanagawa Pref. (250-01). Univ., Nagasaki (852) C-Mo., St., Mg., *ISHIW ADA, Yasufumi (:;PfllEE~iU't) D. Rg. Sc., 3-5-9, Matsubara-cho, Setagaya­ *KAMBE, Nobukazu (f!llP~fIl) D. Sc., ku, Tokyo (156) Pg., C-Foram. Geol. Surv. Japan, 135 Hisamoto, *ISHIZAKI, Kunihiro (:;piIffiJlE~) D. Sc., Takatsu-ku, Kawasaki (213) Hg., Gp. Inst. Geol. & Paleont., Tohoku Univ., *KAMEI, Tadao ( ..*W~) D. Sc., Dept. Aobayama, Sendai (980) Paleoecol., Geol. & Miner., Fac. Sci., Kyoto Univ., Ostracodes. Kyoto (606) Vertebrates. ISOMI, Hiroshi (~~f1$) Geol. Surv. KAMEY AMA, Tokuhiko (~ilJ~~) D. Japan, 135 Hisamoto, Takatsu-ku, Sc., Kitakyushu Univ., Kitagata, Ko­ Kawasaki (213) St., Foram. kuraminami-ku, Kitakyushu (802) C­ ITO, Makoto (i¥J1iJ!;) 7-9-16, Shakujii­ Foram. machi, Nerima-ku, Tokyo (177) St., Gp. KAMINISHI, Toshio (J:.g§fl&~~) Teikoku *ITOIGAWA, Junji (*~JIIW:=) D. Sc., Oil Co., Ltd., 1-31 Hatagaya, Shibuya­ Dept. Earth Sci., Fac. Sci., Nagoya ku, Tokyo (151) Biost. Univ., Nagoya (464) Mo., Paleoecol. KANAMORI, Kunio (~~!FI5;k:) Iranian IW AI, Jun-ichi (¥itt-w:-) D. Sc., 5-68, Petrol. Corpor., Friend Bldg., 2-4-11, Kitasagigamori, Aramaki, Sendai Nagata-cho, Chiyoda-ku, Tokyo (100) (980) M-C St. Foram. *IW AI, Takehiko (¥itt-~~) D. Sc., Dept. KANASUGI, Hiromi (~t~fF~) Dept. Geol., Fac. Educ., Hirosaki Univ., Astron. & Earth Sci., Tokyo Gakugei Hirosaki (036) C-Mo., St. Univ., Nukui-kitamachi, Koganei, IW ASAKI, Yasuhide (¥iiIffiJ~ji) D. Sc., Tokyo (184) Gp. Geol. Inst., Fac. Sci., Univ. Tokyo, *KANA YA, Taro (~ft*~~) D. Sc., c/o Hongo, Tokyo (113) C-Mo (taxonomy Kanaya Hotel, Nikko, Tochigi Pref. & ecol.). (321-14) Micropaleont., Diatoms. JIMBO, Yukinori (f!llf~!::¥JtU) 4-17-7, Seta, KANDA, Kaname (f!llEE~) CR 13-201, Setagaya-ku, Tokyo (158) Mo. 2-5 Kita-machi, Nerima-ku, Tokyo JITSUZAKI, Goro (~iIffiJ'Fo~~) 426 Yaya­ (176) C-St., Foram. rna, Oita (870-03) Biost., Fusul. KANEKO, Sueo (~T~~:'j3) 3-1-16-101, • JOHNSON, J. Harlan, Ph. D., 103 Tri­ Shinkanaoka-cho, Sakai (591) Mo . nity Circle, St. Francis Village, Cra­ KANIE, Yasumitsu (taflBJtJ't) Yokosuka wley, Texas 76036, U. S. A. City Mus., 95 Fukadadai, Yokosuka, 8

Kanagawa Pref. (238) Cretaceous Mo. *KATTO, Jiro (Ej3Hii{X~~) D. Sc., Dept. *KANMERA, Kametoshi (lWJ*.Ill.~) D. Geol., Kochi Univ., Kochi (780) Prob­ Sc., Dept. Geol., Fac. ScL, Kyushu lematica. Univ., Hakozaki, Fukuoka (812) P-St., • KAUFMANN, Godfrey, F., Dogwood Fusul. Drive, R. F. D. I., Box 312, Yorktown *KANNO, Saburo ('fll!T=:~~) D. Sc., Dept. Heights, New York, U. S. A. Geosci., Univ. Tsukuba (Tokyo KAWABE, Tetsuya(Jllm~ijl(;) Geol. Inst., Branch), 3-29 Otsuka, Bunkyo-ku, Fac. Sci., Chiba Univ., Chiba (280) Tokyo (112) C-Mo., Biost. M-Mo. KANOMAT A, Nobuo (J&JN:fl3f$) D. Sc., KAWADA, Shigema (ViIIE~Jff) 2-3-5, Fac. ScL, Chiba Univ., Chiba (280). Maeji, Urawa (336) St., Foram. KANSHA, Yoshiyuki (rl'l'~~¥) Inst. KAWAI, Masatora (ViIif:iE.dE) D. Sc., Geol. & Miner., Fac. ScL, Tokyo Geol. Surv. Japan, 135 Hisamoto, Univ. of Educ., Otsuka, Tokyo (112) Takatsu-ku, Kawasaki (213) St., Mo. Paleobot. KAWAKAMI, Hiroshi (J II 1:$) Shimei, *KANUMA, Mosaburo (J&7B~=:~~) D. Ago-cho, Shima-gun, Mie Pref. (517- Sc., Dept. Astron. & Earth Sci., Tokyo 05) St., Gp. Gakugei Univ., Nukui-kitamachi, Ko­ KAWAKAMI, Tooru (JII1:11) 7-304, 2- ganei, Tokyo (184) Fusul. 8-1, Teraodai, Tama-ku, Kawasaki ·KAPOOR, Hari Mohan, Geol. Surv. (214) Pg. India, Lucknow, India, Gp. Biost. *KA WANO, Michihiro (ViIlI!TJl5l-) D. Sc., KASHIMA, Naruhiko (J&~~~) D. Sc., Inst. Earth ScL, Fac. Educ., Yama­ Geol. Inst., Fac. Sci., Ehime Univ., guchi Univ., Yamaguchi (753) St., Matsuyama (790) P-St. Fusul. KATAHIRA, Tadami (Jtf,'!',~) D. Sc., KAWASAWA, Keizo (JlliRii!f=) 129Igu­ Japan Petrol. Expl. Co., 1-6-1, Ohte­ chi-cho, Kochi (780) P-M Biost. machi, Chiyoda-ku, Tokyo (100) Pg. • KA Y, Marshall, Ph. D., Dept. Geol., KATAYAMA, Sadaaki (JtJll~IlB) 1-11-1, Columbia Univ., New York 27, N. Y., Asahi, Ushita-cho, Hiroshima (730) St. U.S.A. KATO, George (1JIlHii~Rj) D. Sc., 314-11 ·KHUN-SCHNYDER, Emil, Palaont. Inst. Higashioizumi-cho, Nerima-ku, Tokyo & Mus. Univ. Zurich, Kunstlergasse (171) Bacteriology. 16, Zurich, Switzerland. *KATO, Makoto (1JIlHii~) D. Sc., Dept. KIKUCHI, Kanzaemon (~?lQ.lWJtc.:r.. r,) Geol. & Miner., Fac. Sci., Hokkaido Shimokuji, Ryotsu, Niigata Pref. Univ., Sapporo (060) Corals. (952-34) Mo. KA TO, Matajiro (1JlliIi)(=~~) 76-47 Ta­ KIKUCHI, Yoshiki (~?lQ..Ill~) D. Sc., kuhoku, Shinori-machi, Sapporo (061- Iranian Petrol. Corpor., 2-4-11, N aga­ 31). ta-cho, Chiyoda-ku, Tokyo (100) Pg. KA TO, Michio (1JIlHii~f$) Inst. Geol. & ·KILMER, Frank Hale, Humboldt State Paleont., Fac. ScL, Tohoku Univ., CoIL, Arcata, California 95521, U.S.A. Aobayama, Sendai (980) Biost., Foram. M-C Mo. KA TO, Susumu (1JIlHii~) 180 Hiranaka­ ·KIM, Bong Kyun (~il,:l~?J) D. Sc., Dept. cho, Nishi-ku, Nagoya (452). Geol., Seul Natn. Univ., Seul, Korea, KATO, Yosiziro (~Hii.lll{x!!~) D. Sc., 34- Hg. Gp. 487, Tobasama, Inokoshi, Idaka-cho, KIMURA, Hideo (*:ft~f$) 2-5-28, Itsu­ Chikusa-ku, Nagoya (465) C-Rg. wa, Sendai (983). 9

*KIMURA, Tatsuaki (*t-f~§F.l) D. Sc., Tokyo (100). Dept. Astron. & Earth Sci., Tokyo KONDA, Isao (*1fSHb) 28 Kuretake-cho, Gakugei Univ., Nukui-kitamachi, Ko­ Yamato-Koriyama, Nara Pref. (639- ganei, Tokyo (184) Paleo bot. 11) Foram. *KIMURA, Toshio (*t-ffalctAt) D. Sc., *KONISHI, Kenji (/J'iffl~=) D. Sc., Dept. Geol. Inst., Fac. Sci., Univ. Tokyo, Earth Sci., Fac. Sci., Kanazawa Univ., Hongo, Tokyo (113) Tg. Kanazawa (920) Ecol., Isotope paleont., KINOSHITA, Tsutomu (*rj/]) Dept. Algae. Astron. & Earth Sci., Tokyo Gakugei *KOT AKA, Tamio (/J,jl1ljJi;;1<:) D. Sc., Univ., Nukui-kitamachi, Koganei, Inst. Geol. & Paleont., Tohoku Univ., Tokyo (184) Conod., St. Aobayama, Sendai (980) Mo., Bio­ KITAMURA, Tateharu (~tt-f~ra) 1530- metry, Biost. 13-305, Fussa, Fussa City, Tokyo KOTOH, Jiro (J!1~lX~~) 4-20-10, Minami­ (197) St., Trigoniidae. nagasaki-machi, Toshima-ku, Tokyo KITAZATO, Hiroshi (~t!l!Tf) Inst. Geol. (171). & Paleont., Fac. Sci., Tohoku Univ., KUJIME, Akira (~lX*j@) Oyo Corp., Aobayama, Sendai (980) Foram. Ltd., Okida Bldg., 6-3, Nishi-toka­ *KOBAT AKE, Nobuo (/N:1Ha-1<:) D. Sc., machi, Hiroshima (733). 2-6, Nibancho, Koshien, Nishinomiya, KURIHARA, Kenji (~JJ1-~=) D. Sc., Hyogo Pref. (662) Hg., Plants. Inst. Geol. & Miner., Fac. Sci., Tokyo KOBA Y ASHI, Fumio (/J,;j;f\Jt1<:) Dept. Univ. of Educ., Otsuka, Tokyo (112) Astron. & Earth Sci., Tokyo Gakugei C-Foram. Univ., Nukui-kitamachi, Koganei, KURODA, Hidetaka (~EB*~) 4-9-7, Tokyo (184) St., Fusul., Conod. Yokodai, Isogo-ku, Yokohama (235) *KOBA Y ASHI, Iwao (/J';j;f\Sl!ttAt) D. Sc., Engineering geol. Dept. Geol. & Miner., Fac. Sci., Nii­ KURODA, Tokubei (~EB1l!*) D. Sc., c/o gata Univ., Niigata (950-21) Hard Kaiseibyoin Hospital, 1-4, Ohama-cho, Histology (Pelecypods). Nishinomiya (662) R-Mo. KOBAYASHI, Manabu (/J,;j;f\~) 2051-1 KUROSA W A, Toshie (~1RfU~) 8 Miya­ Nishioizumi-machi, Nerima-ku, Tokyo hara-cho, Takasaki, Gunma Pref. (177) Fusul. (370-12). *KOIKE, Toshio (/}ft!!falc1<:) D. Sc., lnst. *KUSUMI, Hisashi (mJ!~) D. Sc., 5-16 Geol. & Miner., Fac. Sci., Tokyo Univ. Higashihonura-cho, Hiroshima (734) of Educ., Otsuka, Tokyo (112) Conod. St., Esterians. KOIZUMI, Hitoshi (/HRJf) 2-2-1-406, *KUWANO, Yukio (~!l!t¥1<:) Dept. Earth Takusu, Chiba (280) Trilobites, Brach. Sci., Natn. Sci., Mus., 3-23-1, Hyaku­ KOIZUMI, ltaru (/HR;j

kura-machi, Kanazawa (920) Isotope *NISHIDA, Shoichi (ggEE~-) D. Sc., Inst. paleont. Geol. & Miner., Fac. Sci., Niigata NAKAMURA, Koji (~t-tm=) D. Sc., Univ., Niigata (950-21). Geol. Lab., Iwamizawa Branch, Ho­ NISHIDA, Tamio (ggEE!i::ift#) D. Sc., Inst. kkaido Univ. of Educ., Iwamizawa, Earth Sci., Fac. of Educ., Saga Univ., Hokkaido (068) P-Brach. Saga (840) P-Mo. NAKAMURA, Manjiro (~t-t;!litCka~) D. NISHIKAWA, Isao (gg)II;!;) Yuki, Yuki­ Sc., Fac. Sci. & Tech., Tokyo Science machi, Jinseki-gun, Hiroshima Pref. . Univ., 2641 Higashikameyama, Yama­ (720-18) . zaki, Noda City, Chiba Pref. (278) St., NISHIKAWA, Makoto (gg JII IDil() 3-7-11, Algae. Nakamachi, Joetsu City, Niigata (943) *NAKANO, Mitsuo (~!I!f:J'tft#) D. Sc., Biost., Foram. Inst. Geol. & Miner., Fac. Sci., Hiro­ NISHIKAWA, Yasuyuki (ggJllJtfT) 1514, shima Univ., Hiroshima (730). Horenkuretake-cho, Nara City (630) *NAKASEKO, Kojiro (~i!!:J!i$Cka~) D. St. Sc., Inst. Geol. Sci., CoIl. Gen. Educ., NISHIMIY A, Katsuhiko (gg'g51~) D. Sc., Osaka Univ., Toyonaka City, Osaka Dept. Earth Sci., Fac. Educ.,Yama­ (560) Biost., Radiol. nashi Univ., Kofu, Yamanashi Pref. NAKAZAWA, Katsumi (~iJU'l=) 1-490, (400). Wakatsukidanchi, Nagano (380). NISHIO, Toshio (gg~~::;I;:) 368 Higashi­ *NAKAZAWA, Keiji (~iR:£=) D. Sc., Oizumimachi, Nerima-ku, Tokyo (177) Dept. Geol. & Miner., Fac. Sci., Kyoto C-St. Univ., Kyoto (606) Mo, Trace fossils. NISHIW AKI, Masaharu (ggll6b ~ ra) D. NARUSE, Takehiko (nJ(;Miji\';~) 122 Jim­ Agr., Ocean Res. Inst., Univ. Tokyo, bohara-machi, Kamisato-cho, Koda­ 1-15-1, Minamidai, Nakano-ku, Tokyo ma-gun, Saitama Pref. (369-03) Biost., (164) Sci. Fisheries. Fusul. NISHIW AKI, Niichi (g§ll6b= -) Inst. Geol. *NASU, Noriyuki (~~JUc$) D. Sc., & Miner., Fac. Sci., Kyoto Univ., Ocean Res. Inst., Univ. Tokyo, Mina­ Kyoto (606) Palynology, Sd., Statis­ mid ai, Nakano-ku, Tokyo (164) tical geol. Mg., Sd. NIW A, Shunji (ft3f:l~=) Dept. Earth NATORI, Hiro'o (;g1&~::;I;:) D. Sc., Geol. Sci., Fac. Sci., Nagoya Univ., Nagoya Surv. Japan, 8 Kawada-cho, Shinjuku­ (464). ku, Tokyo (162) C-Fora~. *NODA, Hiroshi (!l!fEEf.1iRJ) D. Sc., Inst. NEMOTO, Nagayuki (;jR*~fT) Fac. Geol. & Paleont., Tohoku Univ., Ao­ Educ., Chiba Univ., Chiba (280) Mo. bayama, Sendai (980) Mo . • NESTELL, Merlynd Keith, Ph. D., Battle NODA, Masayuki (!l!fEEf{tz) Fukagochi, Memorial IIist., P. O. Box 999, Rich­ Oita-City, Oita Pref. (870). land, Washington 99352, U. S. A. Fusul. *NODA, Mitsuo (!l!fEE:J't$) D. Sc., 1225 NIITSUMA, Nobuaki (~~~M) D. Sc., Nishi-Ohashi, Miyake, Minami-ku, Dept. Earth Sci., CoIl. Arts & Sci., Fukuoka (815). Tohoku Univ., Kawauchi, Sendai *NOGAMI, Yasuo (!I!f l:f'lt1:.) Dept. Geol. (980) Foram. & Miner., Fac. Sci., Kyoto Univ., NISHIDA, Shiro (ggEE.'£M) Dept. Earth Kyoto (606). Sci., Nara Univ. Educ., Takabatake­ NOHARA, Tomohide (!l!fJ]i:W}~) Dept. cho, Nara (630) Micropaleont. Geol., CoIl. Educ., Univ. Ryukyus, 13 Naha, Okinawa (903) Ostracodes, (210) Quaternary St., Mo. Mammals. *OHTA, Yoshihisa (:;tEB.~) D. Sc., NOMURA, Ritsuo (Jj;fi.fil!:;Jc) C/o Mr. Dept. Earth Sci., Fukuoka Univ. of Akinaga, 4-4-2, Numabukuro, Naka­ Educ., Akama, Munakata-machi, Fu­ no-ku, Tokyo (165) Foram. kuoka Pref. (811-41) M-Non-marine NUMANO, Kyoichiro OBJj$-~~) 1465 Lamellibranchia. Ueno, Gobo City, Wakayama (649-15). *OINOMIKADO, Tsuneteru (::k~~r~Ki1E OBA, Tadamichi (::k~}it',:@:) D. Sc., Ocean )\'!Ii) D. Sc., 1-25-15, Nagasaki, Toshi­ Res. Inst., Univ. Tokyo, 1-15-1, Mina­ ma-ku, Tokyo (171) Applied paleont. mid ai, Nakano-ku, Tokyo (164) Isotope *OKADA, Hakuyu (r,q)EBf1#tf) D. Sc., Dept. geol. Geol., Fac. Gen. Educ., Kagoshima *OBA T A, Ikuo (I} ~1i~1:.) D. Sc., Dept. Univ., Kagoshima (890) Sd. Paleont., Natn. Sci. Mus., 3-23-1, OKADA, Yutaka (r,q)EB:a) Geol. Indt., Hyakunin-cho, Shinjuku-ku, Tokyo Fac. Sci., Univ. Tokyo, Hongo, Tokyo (160) Cretaceous Ammonites. (113) Ostracodes. ODA, Motoyoshi C~EB:;t.ll!.) Inst. Geol. OKAFUJI, Goro (r,q)~1l.!!~) Omine High & Paleont., Fac. Sci., Tohoku Univ., School, Mine, Yamaguchi Pref. (759- Aobayama, Sendai (980) St., Foram. 22) Vertebrates. OGASA W ARA, Kenshiro (/H~~.Il9~~) OKAMI, Kazuyoshi (::kl::;fJJJlO D. Sc., Inst. Geol. & Paleont., Fac. Sci., To­ Dept. Geol. Eng., Fac.Tech., Iwate hoku Univ., Aobayama, Sendai (980) Univ., Morioka (020) Sd. CoMo. *OKAMOTO, Kazuo (r,q);;f;.:;fJJ;Jc) D. Sc., OGAWA, Hisashi (/NII~) 2-684-3, Naga­ Shin on orne Sch., Fac. Educ., Hiroshi­ buchi, Orne, Tokyo (198) Structural ma Univ., Hiroshima (734) C-Mo., St. geol. OKAMURA, Chonosuke (r,q);fijjtzI!1.J) 5- OGAWA, Kennosuke (/j'JI IIJtZ,,") 164 12, Jinbeidori, Minato-ku, Nagoya Nakazato-cho, Fuji City, Shizuoka (455) Gp. Pref. (417) St. OKAMURA, Makoto (r,q);fiJ!;) Inst. Geol. ·OGAWA, Yukichi (/NII~a) 1416, 4th & Paleont., Fac. Sci., Tohoku Univ., Ave., Los Angeles, California 90019, Aobayama, Sendai (980) Biost.; . Cal­ U.S.A. careous Nannopl. OGINO, Shigeharu (~Jj~ra) c/o Seki­ OKAZAKI, Yoshio (r,q)~EI3;Jc) D. Sc~, so, 1-62-3, Ooka, Minami-ku, Yoko­ Kushiro Branch, Hokkaido· Univ. of hama (233). Educ., Shiroyama, Kushiro-, Hokkaido OGOSE, Sunao (1:.~ri!.;) D. Sc., 2-11-3- (085) Hg., Palynology... · 103, Tsurukawa, Machida, Tokyo OKI, Kimihiko (::k*~~) 'Inst. Earth (194-01) C-St., Mo., Ecol. Sci., Fac. Sci., Kagoshima Univ., *OGURA, Yudzuru (/j,~~) D. Sc., 5-20- Kagoshima (890) C-St., Foram. 12, Nishi-Ikebukuro, Toshima-ku, *OKIMURA, Yuji Gif1;fia=) D. Sc., Inst. Tokyo (171) Paleobot., Plant morpho­ Geol. & Miner., Fac. Sci., Hiroshima logy. Univ., Hiroshima (730) P-Foram., Sd. *OHARA, Sakae (*I*~) D. Sc., Geol. OKUDA, Hisashi C~EB 1'1.]) 5-3-12, Minami­ Inst., ColI. Arts & Sci., Chiba Univ., kosaka-aimachi, Yao City, Osaka (581) Chiba (280) CoMo. St. OHKOSHI, Akira (*~~) 1-2-2-407, *OKUTSU, Haruo C~i$~1:.) D. Sc., 16 Watarida, Kawasaki-ku, Kawasaki Shintsutsumi, Odawara, Harano- 14 machi, Sendai (983) Environm. geol. gun, Ibaraki Pref., (309-01) Paleo bot. *OMORI, Masae (:k~~~i) D. Sc., Inst. *OZAKI, Hiroshi (}~:If~-p}j:) D. Sc., c/o Geol. & Miner., Fac. Sci., Tokyo Natn. Sci. Mus., Ueno Park, Tokyo Univ., of Educ., Tokyo (112) C-Mo. (110) C-Mo. OMURA, Akio (:k#!!IUl) D. Sc., Dept. OZAKI, Kimihiko (~~0~) Geol. Inst., Earth Sci., Fac. Sci., Kanazawa Univ., Fac. Educ., Yokohama Natn. Univ., Kanazawa (920) Isotope paleont. Tokiwadai, Yokohama (240) C-Plants. OMURA, Kazuo (:k#-;k) D. Sc., Dept. OZAWA, Tomowo (/NRtI'~) D. Sc., Geol., ColI. Liberal Arts, Kanazawa Dept. Geol., Fac. Sci., Kyushu Univ., Univ., Kanazawa (920) St. Fukuoka (812) Fusul., U mboninae. OMURA, Tatsuo (/J'#Ji;k) D. Agr., ·PARIWATVORN, Pathehara, 45/47, Soi Dept. BioI., Fac. Sci., Okayama Univ., Sripichai, Bangsue, Bangkok, Thai­ Okayama (700) Animal Embryol. land, Foram. ONODERA, Shingo (/J'!l!Y~ffi"*) Daito • REYES, Milagros, V., 31 sta, Ana St., High School, Daito-cho, Higashiiwai­ Magallanes Village Makati, Rizal, gun, Iwate (029-05) Mammals. Philippines, Foram. ONOE, Toru (~:l:¥) Geol. Surv. japan, ·RIGBY, j. Keith, Dept. Geol., Brigham Tokyo Office, 8 Kawada-cho, Shin­ Young Univ., Provo, Utah 84602, juku-ku, Tokyo (162) C-Plants. U. S. A., Fossil sponges. *ONUKI, Yoshio (/}fUi5l3) D. Sc., Hase ·RICKMEYER, jens, D-2000 Hamburg Geol. Surv. Consultants Co., 3-5-8, 76, Rossberg 15, W. Germany, Gp. Honcho, Sendai (980) Biost. *SADA, Kimiyoshi (fti:EB0l!T) D. Sc., ·ORDONEZ, Elvira P., Petrol. Div., Bur. Dept. Geol., Fac. Gen. Educ., Hiro­ Mines, Herran St., Manila, Philip­ shima Univ., Hiroshima (730) Fusul., pines, Smaller Foram. Corals. OSADA, Toshiaki(~EBfW:lj)n Dept. Geogr., ·SADLICK, Walter, Ph. D., Dept. Geol., Fac. Sci., Tokyo Metropolitan Univ., Univ. Houston, Houston 4, Texas, Setagaya-ku, Tokyo (158) Mo. U.S.A. OSHITE, Kei (¥P~~) D. Sc.j Dept. Geol., SAITO, Minoru (ffJfi~) D. Sc., Fac. Arg., Hakodate Branch, Hokkaido Univ. of Kagawa Univ., Kita-gun, Kagawa Educ., Hakodate (040) St., Diatoms. Pref. (761-07) St., Mo. *OT A, Masamichi (:;tEB .iE;@) D. Sc., SAITO, Takashi OHi~) japan Petrol. Akiyoshidai Sci. Mus., Shuho-cho, Dev. Corp., 1612 First City East Bldg., Mine-gun, Yamaguchi Pref. (754-05) 1111 Fannin St., Houston, Texas, Fusul., Rugosa. U.S.A. OTA, Nobuki (:;tEB ffi"til) 1726 Kusubashi, *SAITO, Toshio (tfiHf:iG;14E) D. Sc., Yahata-ku, Kitakyushu (807-11) Sd. Geol. Inst., Fac. Sci., Ibaraki Univ., OTSUKA, Hiroyuki (:kJ;if'l:}Z) D. Sc., Mito (310) St., Sd. Inst. Earth Sci., Fac. Sci., Kagoshima ·SAITO, Tsunemasa (tfiJi1lt.iE) D. Sc., Univ., Kagoshima (890) C-Mammals. Lamont-Doherty Geol. Observatory, *OY AMA, Katsura (:kJlltE) D. Sc., Geol. Columbia Univ., Palisades, N. Y. 10964, Surv. japan, Tokyo Office, 8 Kawada­ U. S. A., Planktonic Foram. cho, Shinjuku-ku, Tokyo (162) Mo., SAITO, Yasuji (tfiJiWrf=) D. Sc., Natn. Ecol. Sci. Mus., 3-23-1, Hyakunin-cho, *OY AM A, Toshiji (:kJll~!X) D.· Sc., 208 Shinjuku-ku, Tokyo (160) Sedimentary Yanaka, Fujishiro-machi, Kitasoma- rocks. 15

SAITO, Yutaka (*~:.:) D. Sc., Dept. fune-cho, Kumamoto Pref. (861-32) Earth Sci., Fac. Educ., Shinshu Univ., Gg. Nagano (380) SAWADA, Yoshio (iREH~!13) D. Sc., *SAKAGAMI, Sumio (~J:ltH:) D. Sc., Muroran CoIl. Tech., Muroran, Hok­ Dept. Geol., Fac. Educ., Ehime Univ., kaido (050) Biost., Mo. Matsuyama (790) Bryozoans, Fusul., SAW AMURA, Konosuke (iRt1;¥:zIllJ) D. Conod. Sc., Geol. Surv. Japan, 135 Hisamoto, *SAKAGUCHI, Shigeo (i.N. p JUtE) D. Sc., Takatsu-ku, Kawasaki (213) C-Diatom. Inst. Geosci., Tennoji Branch, Osaka SA WARA, Norihiko (~J5Hc.~) Japan Kyoiku Univ., Osaka (543) St., Fusul. Petrol. Expl. Co., Ltd., Nagaoka SAKAI, Toyosaburo (rm*.-=ft~) D. Sc., Branch, 2-11-11, Shirooka, Nagaoka Inst. Geol. & Paleont., Fac. Sci., (940). Tohoku Univ., Aobayama, Sendai • SCHMIDT-EFFING, Reinhard, D. Sc., (980) C-Radiol. Escuela Centroamericana de Geologia, *SAKAKURA, Katsuhiko (i.N.1tIm~) D. Univ. Costa Rica, Apartado 35, Costa Sc., 9-20-3, Seijo, Setagaya-ku, Tokyo Rica, M-Ammonites, Rg. (157) Fuel geol. SEKIDO, Shinji (I*]P1a(1() 1-23, Hon­ SAKAMOTO, Takao (~*~ME) D. Sc., daiku-machi, Komatsu, Ishikawa Pref. 1-6-11, Jingumae, Shibuya-ku, Tokyo (923) M-Plants. (150) Gg. SHIBATA, Akira (~EH:§t) 217-2, Takao, SAKURAI, Kin-ichi (tJ(*~-) 1-15 Niimi, Okayama Pref. (718) Gp. Kandasuda-cho, Chiyoda-ku, Tokyo SHIBAT A, Hiroshi (~EHm) Inst. Earth (101). Sci., Fac. Sci., Nagoya Univ., Nagoya ·SAMANIEGO, Remedios M., Bureau of (464) C-Mo. Mines, Herran St., Manila, Philippines, SHIBATA, Toyokichi (;WEHiltn D. Sc., Foram., Mo. lnst. Geol. & Paleont., Fac. Sci., SAMATA, Tetsuro (fti:f:lR:gN~) Inst. Geol. Tohoku Univ., Aobayama, Sendai & Miner., Fac. Sci., Tokyo Univ. of (980). Educ., Otsuka, Tokyo (112) Micropal. SHIIDA, Isao (~*EH;IJ) D. Sc., Fac. SASAKA W A, Seiichi (tfEJII i-ilf-) Japan General Educ., Nagoya Univ., Nagoya Petrol. Expl. Co., Akita Branch, Na­ (464) St. kamurashimizuden, Kawashiri-machi, *SHIKAMA, Tokio cr.&r~'~~) D. Sc., Akita (010) St., Foram. Geol. Inst., Yokohama Natn. Univ., SATO, Jiro (-fti:ili=ft~) 1-78 Omotekoji, Tokiwadai, Yokohama (240) Verte­ Mizusawa City, Iwate Pref. (023). brates. SATO, Koji (-fti:ili$=) D. Sc., Hot Spring SHIMAKURA, Misaburo (~1tB=ft~) D. Res. Cent., 3-42-10, Takada, Toshima­ Sc., 381-5, Kidera, Shinyashiki-cho, ku, Tokyo (171) Balneo-geol. Nara (630) Plants. SATO, Seiji (-fti:iliIDXI'l]) D. Sc., Dept. SHIMAZAKI, Togo (i/iJ/$fkiJE1L) Tech. Lab., Geol. & Miner., Fac. Sci., Hokkaido Japan Petrol. Expl. Co., Ltd., 3190-1, Univ., Sapporo (060) Palynology. Musashino, Hamura-cho, Nishitama­ *SATO, Tadashi (-fti:ililE) D. Sc., Fac. gun, Tokyo (190-11) Palynology. Geosci., Univ. Tsukuba, Sakura-mura, SHIMIZU, Daikichiro (m7.k::kaft~) D. Sc., Ibaraki Pref. (300-31) M-Ammonoids, Dept. Geol. & Miner., Fac. Sci., Kyoto Structural geol. Univ., Kyoto (606) Brach., poSt. SAWA, Hideo (iR~1:.) 328 Hetami, Mi- SHIMIZU, Teruo (m7.k~~) 15 Koyama- 16

shimofusa-cho, Kita-ku, Kyoto (603) Inst., Fac. Educ., Kanazawa Univ., Education. Kanazawa (920) St. SHIM OYAMA, Shoichi Cr"llJIE-) Dept. SUGIMURA, Akihiro (~t-.tPl35l.) Akiyo­ Geol., Fac. Sei., Kyushu Univ., Hako­ shi-dai Sci. Mus., Shuho-cho, Yama­ zaki, Fukuoka (812) P-M St. guchi Pref. (754-05) Bryozoans. SHINBO, Kyuya (~*~!PF) Tech. Lab., SUGITA, Munemitsu (t~EB*m) Dept. Japan Petrol. Expl. Co., 3190-1 Musa­ Earth ScL, Fac. Sci., Okayama Univ., shino, Hamura-cho, Nishitama-gun, Okayama (700) Structural geol. Tokyo (190-11) Foram., Biost. SUMI, Yasuo (~~~) Geol. Surv. Japan, SHINTANI, Tohio (~tt{~t~fil) 1-12-10, 135, Hisamoto, Takatsu-ku, Kawasaki Sakura, Setagaya-ku, Tokyo (156) Gp. (213) St. SHIOBARA, Tetsuro (:l;\[W-~~~) D. Sc., SUMINOKURA, Yasuhiko(~it~~)Kobe Dept. Earth Sci., Fac. Educ., Hirosaki Steel Co., 1-8-2, Marunouchi, Chiyo­ Univ., Hirosaki (036) Foram. da-ku, Tokyo (100) St., Coal geo!. SHIRAGAMI, Takashi (~f!I!*=) Zen­ ·SUNTHARALINGAM, T., Geol. Surv. nippon Consultants Co., 5-3-11, Malaysia, P. O. Box 1015, Ipoh, Uehon-machi, Tennoji-ku, Osaka (543) Malaysia, St. Ag. ·SUSUKI, Takeo, Dept. Geol., Univ. Calif., SHIRAI, Takehiro (~*-I@m) D. Sc., Los Angeles, California, U. S. A. Dept. Earth Sci., Fac. Educ., Niigata *SUYARI, Kazumi (@{.~B) D. Sc., Univ., Niigata (951) C-St., Foram. Dept. Earth ScL, ColI. General Educ., SHIRAISHI, Shigeyoshi (~::Enlt~) 1027- Univ. Tokushima, Tokushima (770) St. 7, Yoshioka-cho, Sasebo, Nagasaki SUZUKI, Akio (~*~itE) D. Sc., Dept. Pref. (857-01) C-St., Paleoecol. Geol., Fac. Educ., Utsunomiya Univ., *SHUTO, Tsugio (ti"iJi{X:93) D. Sc., Dept. Utsunomiya (320) St. Geol., Fac. Sc., Kyushu Univ., Hako­ *SUZUKI, Keiji (~*1i§:~) D. Sc., Dept. zaki, Fukuoka Pref. (812) C-Mo. Earth Sci., Fac. Educ., Fukushima • SOARES, Ferreira, D. Sc., Mus. Lab. Univ., Fukushima (960) Paleobot. Miner. & Geol., Univ. Coimbra, SUZUKI, Koji (~*}jlfifJ) D. Sc., Tokyo Coimbra, Portugal, M-Mo., Sd. Inst. for Education, 1-1-14, Meguro, SOGABE, Masatoshi (1!t:fJ(;ffBIE !&) Geol. Meguro-ku, Tokyo (153) St. Surv. Japan, Tokyo Branch, Kawada­ SUZUKI, Mitsuo (~*.:=.:93) Inst. Forest cho, Shinjuku-ku, Tokyo (162) St. Bot., Fac. Agr., Univ. Tokyo, Hongo, • STACH, Leopold William, 255, Beacons­ Tokyo (113) Plants (woods) . field Parade, Middle Park, S. C. 6, SUZUKI, Nobuo (~*'I~itE) D. Sc., Ku­ Victoria, Australia. shiro Branch, Hokkaido Univ. of • STEWART, Lowther J., Dept. of Geol., Educ., Kushiro (085) Paleobot. Univ. Puget Sound, Tacoma 6, Wa­ SUZUKI, Tatsuo (~*:.¥~) 1-2216 Asa­ shington, U. S. A. gaya-Minami, Suginami-ku, Tokyo SUGANO, Kozo ('f!lf.f~.:=.) Dept. Geosci., (166). Tennoji Branch, Osaka Kyoiku Univ., *TACHIBANA, Koichi (mrr-) D. Sc., Osaka (543) Radio!. Dept. Geol., Fac. Educ., Iwate Univ., SUGAY A, Masashi ('fttij(:Rj) c/o Nishi­ Morioka (020) Biost., Brach. goori Ryoichi, 1-8-15 Midori-cho, TADA, Motohiko (~EB5[;~) D. Sc., Min­ Chiba, (280) Biost., Fusul. ing & Civil Engineer. Dept., Fac. SUGIMOTO, Mikihiro (~*~ft) Geol. Tech., Iwate Univ., Morioka (020) 17 St., Sd. gashi-Koiso, Oiso-cho, Naka-gun, Ka­ *TAI, Yoshiro (~*.tl~) D. Sc., Dept. nagawa Pref. (255) St. Geol., Fac. General Educ., Hiroshima TAKENAMI, Kaoru (fi:tm~) 6-253-7- Univ., Hiroshima (730) C-Foram, C-St. 306, Fujimi-cho, Tachikawa, Tokyo TAIRA, Kazuhiro (3JZ-~) Inst. Geol. (190) Education. & Miner., Fac. Sci., Tokyo Univ. of TAKEUCHI, Sadako (¥rI*JJt-=f) D. Sc., Educ., Tokyo (112) Isotope geol. 3-9-12, Kamisugi, Sendai (980) Paly­ *TAKAHASHI, Haruyuki (f.Ij~¥&Z') D. nology. Sc., Dept. Geol., Fac. Sci., Ibaraki T AKIZA WA, Shigeru (rltrRa;) Inst. Geol. Univ., Mito (310) M-St., Ammonites. & Miner., Fac. Sci., Tokyo Univ. of *TAKAHASHI, Kiyoshi (f.Ij~m-) D. Sc., Educ., Otsuka, Tokyo (112) Conod. Dept. Geol., Fac. Liberal Arts, Naga­ -TALENT, John A., School of Earth saki Univ., Nagasaki (852) Palynology. Sci., Macquarie Univ., North Ryde, TAKAHASHI, Mutsumu (f.Ij~~) 728, N. S. W. 2113, Australia. Miyoguchi, Komatsu-cho, Syuso-gun, TAMANYU, Shiro (3i~;:t;;tl~) Inst. Geol. Ehime Pref., (799-11) Palynology. & Paleont., Fac. Sci., Tohoku Univ., *TAKAHASI, Eitaro (f.Ij~~;t:~~) D. Sc., Aobayama, Sendai (980) St. 1190-5 Kami-kawara, Miyanoshimo, TAMIYA, Ryoichi (B3-g~-) 1-3-24 Hi­ Yamaguchi (753) M-C Plants. gashihara-machi, Yamagata (990) St. *TAKAI, Fuyuji (f.Ij*~=) D. Sc., Geol. *TAMURA, Minoru (B3t-f~) D. Sc., Inst., Fac. Sci., Univ. Tokyo, Hongo, Dept. Geol., Fac. Educ., Kumamoto Tokyo (113) Vertebrates. Univ., Kumamoto (860) M-Bivalves. T AKANO, Osamu (f.Ij!l!f~) Japan Petrol. TANABE, Kazushige (;jjjJj$-nl(;) Dept. Expl. Co., Ltd., Sapporo Office, 7 West, Geol., Fac. Sci., Kyushu Univ., Hako­ 21 South, Chuo-ku, Sapporo (064) Pg. zaki, Fukuoka (812) Functional mor­ TAKAOKA, Yoshinari (f.Ij!lrrJ~nl(;) 1515 phol. (M-Ammonites). 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(734) C-Mo. *TATEIWA, Iwao (~;j5Mt) D. Sc., 6-27- TAKEHARA, Heiichi (¥r~3JZ-) D. Sc., 3 Daita, Setagaya-ku, Tokyo (155) St., 3-16 Fukuhara-cho, Showa-ku, Nago­ Tg, Plants. ya (466) St. TAZAWA, Jun-ichi (B3rRMi-) Dept. Geol. TAKENAGA, Shigeo (fi:t7k!t1;:) 374 Hi- & Miner., Fac. Sci., Hokkaido Univ., 18 Sapporo (060). (228) St., Sd. *TOKUNAGA, Shigemoto (ttt7lcmJE;) D. UEDA, Yoshiro (MEB7¥Jl!l3) D. Sc., Geol. Sc., 2-17-18, Hyakunin-cho, Shin juku­ Surv. japan, Chugoku Office, 6-30, ku, Tokyo (160) Palynology. Kamihacchobori, Hiroshima (730) St. TOKUYAMA, Akira (ttt i1I 00) D. Sc., UEMURA, Kazuhiko (M;fi'fl]~) Dept. Inst. Earth Sci., Fac. Educ., Shizuo­ Paleont., Natn. Sci. Mus, 3-23-1 ka Univ., Shizuoka (420) Tg, Rg, M­ Hyakunin-cho, Shinjuku-ku, Tokyo Brach., Mo. (160) C-Plants. TOMIDA, Yukimitsu (~EB¥:Jft) Geol. *U JIIE, Hiroshi (.a;;**) D. Sc., Dept. Inst., Yokohama Natn. Univ., Tokiwa­ Paleont., Natn. Sci. Mus., 3-23-1 dai, Yokohama (240) Vertebrates. 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1.200 p:J Transactions and Proceedings of the Palaeontological Society of Japan

New Series No. 96 December 20, 1974

CONTENTS TRANSACTIONS 639. IGo, Hisayoshi and KOBAYASHI, Fumio: Carboniferous conodonts from the Itsukaichi district, Tokyo, Japan ...... 411 640. SATO, Tadashi: A Jurassic ammonite from near Inuyama, north of Na- goya ...... 427

641. KOIKE, Toshio and ISHIBASHI, Takeshi: Upper Triassic conodonts from Okinawa-jima ...... 433 642. BURCKLE, Lloyd H. and TODD, Alayne: Size differences in the diatom, Annellus californicus TEMPERE ...... 437 PROCEEDINGS ...... 443