DOCSLIB.ORG

Studies of Asian Conodonts, Part I)*

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Studies of Asian Conodonts, Part I)* Trans. Proc. Palaeont. Soc. Japan, N.S.. No. 53. pp. 179-193. pls. 27, 28. Apr. 10, 1964 466. CARBONIFEROUS CONODONTS FROM THE OMI LIMESTONE, NIIGATA PREFECTURE. CENTRAL JAPAN (STUDIES OF ASIAN CONODONTS, PART I)* HISAYOSIII IGO and TOSHIO KOIKE Institute of Geology and Mineralogy. Tokyo University of Education 青 海 石 灰 岩 か ら発 見 され た 石 炭 紀 の コ ノ ドン トにつ い て;新 潟 県 西 頸 城 郡 青 海町 ・青海 電 化 株 式 会社 の青 海 ∫ll沿いの 西 山 採 石 場 に 露 出 す るC1層(Millerella Zone)の 石 灰 岩 か ら発 見 され た コ ノ ドン トの うち,11属16睡 を 記 蔵 した 。 また これ らの コ ノ ドン トに も とつ い て, C1層 の地 質 時 代 を険 討 し た.猪 郷 久 義 ・小 池 敏 夫 which was rather vague before our study. Introduction and Acknowlegments This paper is the first report of our continuous work on conodonts from Ja- The Omi Limestone is distributed in pan and other Asian districts. Nishikubiki County, Niigata Prefecture. Acknowledgments are due to Drs. Central Japan. It has been studied by Haruyoshi FUJIMOTO, professor emeritus many workers. such as HAYASAKA (1921), of the Tokyo University of Education, KAWADA (1954) and FUJITA (1958), but Wataru HASHIMOTO, professor of the no comprehensive paleontological study same university, Teiichi KOBAYASHI,. has been published except for HAYA- professor emeritus of the University of SAKA'S classical work. We have been Tokyo and Teturo HANAI, assistant pro- studying various fossils from this huge fessor of the same university, for their limestone mass and are very fortunate suggestions and encouragements. During to find an excellently preserved rich the senior author's stay in Illinois he conodont fauna in the lower part of this was indebted to Dr. Charles COLLINSON, limestone. There has been no report of geologist of the Illinois State Geological a rich conodont fauna in Japan except Survey, for his guidance for the cono- for recent brief note of HAYASHI (1963). dont study. We also thank Mr. Hide- We studied this newly found conodont toshi TOGASHI of the Omi Denka Co. fauna with keen interest. As the result Ltd., for his help to our fossil collection of the study we discriminated eleven in the field. A part of expenses of this genera and sixteen species and became work was defrayed from the Scientific to believe that this conodont fauna ap- Expenditure Fund, Ministry of Education, parently indicates Early Pennsylvanian Japanese Government. or Late Namurian in age. This conclusion must be noted about the geological age of the lower part of the Omi Limestone Stratigraphic Summary * Received Jan. 6. 1961; read at the Annual The Omi Limestone is a thick lime- Meeting of the Society at Tokyo, Sep. 7. 1963. stone mass ranging from the Early Car- 179 18(1 Hisayoshi IGO and Toshio KOIKE boniferous (Tournaisian) to late Middle Eoasianites from the certain horizon 01 Permian in age. According to KAWADA CI and they briefly discussed about the (1954) and FUJITA (1958) this limestone geological age of CI. Judging from can be subdivided into five lithogenetic these evidence, KAWADA'S Coral-Bra- units as follows in descending order. chiopod Zone or FUJITA's Millerella- Coral-Brachiopod Zone is thought to be P2•c•c Parafusulina and Neoschcogerina equivalent to the Tournaisian to Bashi- Zones kirian. P1•c•cPsendofusulina and Pseudoschina- We collected many specimens of bra- gerina Zones chiopods. ammonites, corals and others C3•c•cTriticites Zone Finnlinella-FusulinaC2•c•c Zone from about 100 m. below of the SAKA- Millerella-Coral-Brachiopod C1•c•c Zone GAMI'S Profusulinella-limestone. They are not throughly worked out, but we The representing conodonts were col- discriminated the following ammonites lected from C1 of KAWADA and FUJITA. in addition to Eoasianites sp., such as The geological age of CI was very ob- Gastrioceras sp.. aff. G. reticulatus Yin scure, but HAYASAKA once discriminated and Paralegoceras sp.. These ammonites the following fossils, such as Amygdalo- may indicate the Reticuloceras Zone of phyllum giganteum MAYASAKA), Cor- western Europe. The Reticuloceras Zone enia ? omiensis (HAYASAKA). Axophyl-w is the Upper Namurian and thought to um gracile HAYASAKA. Lithostrotionl be equivalent to the Lower Pennsylvanian somaense YABE and HAYASAKA, Stvlido- (MOORE, 1948; ELIAS. 1956). Our cono- phyllum sp.. Chaetetes sp.. Giganlopro- dont fauna was obtained from this am- ductus edelburgensis (PHILLIPS), Avonia monite-bearing limestone, and as will be cfr. aculeatus (MARTIN), Echinoconchus discussed later the geological age of punctatus var.. Produclus semireticulatus this conodont fauna also indicates ex- MARTIN. Camarophoria globulina PHIL- actly same age with the preliminary LIPS, Martinia glabra decora PHILLIPS, conclusion from these ammonites and Reticularia lineata MARTIN, Syringothyris brachiopods. cuspidalus MARTIN, Megistocrinus sp.. Actinocrinus aff. globrus PHILLIPS and Faunal Summary of Conodonts others. Unfortunately precise stratigraphic The collections were made in the Nishi- positions of these fossils are still obscure. yama quarry of the Omi Denka Co. Ltd. It seems to be necessary further inves- along the Omigawa River (Text-fig. I). tigation of these fossils from CI based Stratigraphic position of conodont-bear- upon the present progressed paleon- ing bed is about 100 m. below of the tology. The occurrence of Syringothyris SAKAGAMI'S Profusulinella-limestone. cuspidalus from CI indicates Tour We have succeeded to separate numer- naisian age, and Gigantoproductus and ous specimens of conodonts from gray -others are thought to be the Visean. to white sparry limestone by acetic acid Recently SAKAGAMI (1962) proved the treatment and discriminated the follow- •occurrence of Profusulinella from the ing species. namely :-Hindeodella asia- upper part of CI and described several tica IGO and NOIRE. n. sp., H. paradeli- 'Carboniferous bryozoa . KATO and NAKA (Willa IGO and KOIKE, n. sp. II. saka- AIURA 1962) reported the occurrence of gamii IGO and NOIRE, n. sp.. Synprionio- 466. Carboniferous Conodonts from Central Japan 181 Text-fig. 1. Map showing the fossil locality. dina microdenta ELLISON, S. collznsoni Ilindeodella are very abundant through- IGO and KOIKE. n. sp., Euprioniodina out the collections, and they are related dentata IGO and KOIKE, n. sp.. Ligonodina to the mentioned American species which hanaii IGO and KOIKE, n. sp.. Roundya range from the Desmoinesian to Missou- subacordus (GUNNELL), Lonchodina ? nip- rian. Owing to the fragmentary state ponica IGO and KOIKE, n. sp.. Ozarkodina of these described foreign specimens. orientate IGO and KOIKE, n. sp.. Spatho- detailed comparison seems to be difficult. gnathodus echigoensis IGO and KOIKE, Thus we proposed new species herein sp.. Idiognathodus togashii IGO and KOIKE, based upon many complete specimens. n. sp., Streptognathodus japonicus IGO and The genus Synprioniodina is known KOIKE, n. sp., S. expansus IGO and KOIKE, from the Lower Devonian to Upper Car- n. sp., Gnathodus opimus IGO and KOIKE, boniferous, but it is rather common in n. sp. and Gnathodus sp. the Devonian and Mississippian rocks. Hindeodella asiatica and IL sakagamii S. microdenta is very abundant in the resemble H. armata STAUFFER and PLUM- treated material and it is similar to the MER which was described from the East American specimens which were de- Mountain Shale member, Mineral Wells scribed from the Cherokee Shale through formation, Texas. II. paradelicatula is the Deer Creek Limestone (ELLISON, also closely related with IL delicatula 19411) and also from the Middle Dimple STAUFFER and PLUMMER from the Gra- formation (Morrowan) in Texas (ELLISON ford and Mineral Wells formation in and GRAVES. 1941). ROHDES (1952) de- Texas. These three new species of scribed Synprioniodina-assemblage from 182 Hisayoshi IGO and Toshio KOIKE the Pennsylvanian of Illinois and his Spathognathodus echigoensis is a rather illustrated specimens quite agree with common species in this fauna and it our specimens. S. collinsoni is rather slightly resembles S. minutus (ELLISON) rare, but having unique denticles and is discriminated from the Desmoinesian to very distinct from other previously de- Rig Blue Series. scribed species. Idiognathodus togashii is a rather rare Euprioniodina dentata is not so com- throughout our collection. This new mon in our collections. The genus species seems to be a primitive type Euprioniodina is rather long-ranged cono- among this genus and resembles I. deli- dont and has been known from the catus GUNNELL persisting in the Desmo- Lower Carboniferous to Triassic. Our inesian to Lower Virgilian in Kansas new species resembles E. Pulcella YOUNG- and Missouri. QUIST and DOWNS described from the Two forms of Streptognathodus are Lower Pennsylvanian of Iowa. discriminated from this fauna. S. japo- Ligonodina is also a long-ranged genus nicus is very abundant and is a charac- of Coleodontidae and has been reported teristic representative in this fauna , but from the Ordovician up to the Triassic it differs from many American species. rocks. L. hanaii is a rare species in S. expansus is rare, but it resembles S. our collection and it may he related wabaunsensis GUNNELL and other Pen- with L. typa (GUNNELL) and also with nsylvanian species of U.S. A.. L. lexingtonensis (GUNNELL) reported Gnathodus opimus is fairly common in from the Desmoinesian and Missourian our collection, but it differs from most of North America. of the American and European species. Roundya subacodus (GUNNELL) is also As mentioned above the Omi conodont a rare species in this fauna . Detailed fauna is dominated by Streptognathodus comparison between our forms and the japonicas, Gnalhodus opimus, three new American ones seems to he difficult. but species of Hindeodella, Synprioniodina they stand very close each other . Ac- microdenta Spathognalhodus echigoensis cording to ELLISON (1941), R. subacodus and Ozarhodina orientate. ranges from the Desmoinesian through Up to date a few papers treated the Virgilian. Lower Pennsylvanian or Upper Namu- Lonchodina ? nipponica is also a rare rian conodonts were published, therefore, .
Load more

Recommended publications
  • Conodonts in Ordovician Biostratigraphy
    View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by Archivio istituzionale della ricerca - Università di Modena e Reggio Emilia 1 Conodonts in Ordovician biostratigraphy STIG M. BERGSTRÖM AND ANNALISA FERRETTI Conodonts in Ordovician biostratigraphy The long time interval after Pander’s (1856) original conodont study can in terms of Ordovician conodont biostratigraphic research be subdivided into three periods, namely the Pioneer Period (1856-1955), the Transition Period (1955-1971), and the Modern Period (1971-Recent). During the pre-1920s, the few published conodont investigations were restricted to Europe and North America and were not concerned about the potential use of conodonts as guide fossils. Although primarily of taxonomic nature, the pioneer studies by Branson & Mehl, Stauffer, and Furnish during the 1930s represent the beginning of the use of conodonts in Ordovician biostratigraphy. However, no formal zones were introduced until Lindström (1955) proposed four conodont zones in the Lower Ordovician of Sweden, which marks the end of the Pioneer Period. Because Lindström’s zone classification was not followed by similar work outside Baltoscandia, the time interval up to the late 1960s can be regarded as a Transition Period. A milestone symposium volume, entitled ‘Conodont Biostratigraphy’ and published in 1971, 2 summarized much new information on Ordovician conodont biostratigraphy and is taken as the beginning of the Modern Period of Ordovician conodont biostratigraphy. In this volume, the Baltoscandic Ordovician was subdivided into named conodont zones whereas the North American Ordovician succession was classified into a series of lettered or numbered Faunas. Although most of the latter did not receive zone names until 1984, this classification has been used widely in North America.
    [Show full text]
  • Geologic Map and Upper Paleozoic Stratigraphy of the Marble Canyon Area, Cottonwood Canyon Quadrangle, Death Valley National Park, Inyo County, California
    Geologic Map and Upper Paleozoic Stratigraphy of the Marble Canyon Area, Cottonwood Canyon Quadrangle, Death Valley National Park, Inyo County, California By Paul Stone, Calvin H. Stevens, Paul Belasky, Isabel P. Montañez, Lauren G. Martin, Bruce R. Wardlaw, Charles A. Sandberg, Elmira Wan, Holly A. Olson, and Susan S. Priest Pamphlet to accompany Scientific Investigations Map 3298 2014 U.S. Department of the Interior U.S. Geological Survey Cover View of Marble Canyon area, California, showing dark rocks of Mississippian Indian Springs Formation and Pennsylvanian Bird Spring Formation overlying light rocks of Mississippian Santa Rosa Hills Limestone in middle distance. View is southeast toward Emigrant Wash and Tucki Mountain in distance. U.S. Department of the Interior SALLY JEWELL, Secretary U.S. Geological Survey Suzette M. Kimball, Acting Director U.S. Geological Survey, Reston, Virginia: 2014 For more information on the USGS—the Federal source for science about the Earth, its natural and living resources, natural hazards, and the environment—visit http://www.usgs.gov or call 1–888–ASK–USGS For an overview of USGS information products, including maps, imagery, and publications, visit http://www.usgs.gov/pubprod To order this and other USGS information products, visit http://store.usgs.gov Suggested citation: Stone, P., Stevens, C.H., Belasky, P., Montanez, I.P., Martin, L.G., Wardlaw, B.R., Sandberg, C.A., Wan, E., Olson, H.A., and Priest, S.S., 2014, Geologic map and upper Paleozoic stratigraphy of the Marble Canyon area, Cottonwood Canyon quadrangle, Death Valley National Park, Inyo County, California: U.S. Geological Survey Scientific Investigations Map 3298, scale 1:24,000, 59 p., http://dx.doi.org/10.3133/sim3298.
    [Show full text]
  • CONODONTS of the MOJCZA LIMESTONE -.: Palaeontologia Polonica
    CONODONTS OF THE MOJCZA LIMESTONE JERZY DZIK Dzik, J. 1994. Conodonts of the M6jcza Limestone. -In: J. Dzik, E. Olemp ska, and A. Pisera 1994. Ordovician carbonate platform ecosystem of the Holy Cross Moun­ tains. Palaeontologia Polonica 53, 43-128. The Ordovician organodetrital limestones and marls studied in outcrops at M6jcza and Miedzygorz, Holy Cross Mts, Poland, contains a record of the evolution of local conodont faunas from the latest Arenig (Early Kundan, Lenodus variabilis Zone) to the Ashgill (Amorphognathus ordovicicus Zone), with a single larger hiatus corre­ sponding to the subzones from Eop/acognathus pseudop/anu s to E. reclinatu s. The conodont fauna is Baltic in general appearance but cold water genera , like Sagitto­ dontina, Scabbardella, and Hamarodus, as well as those of Welsh or Chinese af­ finities, like Comp/exodus, Phragmodus, and Rhodesognathu s are dominant in par­ ticular parts of the section while others common in the Baltic region, like Periodon , Eop/acognathus, and Sca/pellodus are extremely rare. Most of the lineages continue to occur throughout most of the section enabling quantitative studies on their phyletic evolut ion. Apparatuses of sixty seven species of thirty six genera are described and illustrated. Phyletic evolution of Ba/toniodus, Amorphognathu s, Comp/exodus, and Pygodus is biometrically documented. Element s of apparatu ses are homolog ized and the standard notation system is applied to all of them. Acodontidae fam. n., Drepa­ nodus kie/censis sp. n., and D. santacrucensis sp. n. are proposed . Ke y w o r d s: conodonts, Ordovici an, evolut ion, taxonomy. Jerzy Dzik, Instytut Paleobiologii PAN, A/eja Zwirk i i Wigury 93, 02-089 Warszawa , Poland.
    [Show full text]
  • UPPER DEVONIAN CONODONTS ASSOCIATED with a LARGE PLACODERM FISH SKULL from the CANNING BASIN, WESTERN... Download
    Rec. West. Aust. Mus. 1987,13 (4): 501-513 Upper Devonian conodonts associated with a large placoderm fish skull from the Canning Basin, Western Australia John A. Long* Abstract Conodonts retrieved from limestone encasing the skull of a large placoderm fish, from an unknown lo'cation in the south-eastern Canning Basin, indicate an age of mid-Famennian (toIIB) because of the concurrent presence of the following taxa: Nothognathella palmatiformis, Nothognathella sp. nov, A. Druce 1976,Palmatolepis glabra pectinata, P. quadrantinodosa inflexa, P. quadrantinodosa inflexoidea, P. marginifera s.s., Polygnathus triphyllatus, P. glaber s.s. and P. germanus s.s. The assemblage represents a palmatolepid-polygnathid biofacies dominated by palmatolepids, and is typical of muddy outer shelf to sandy inner shelf environ­ ments. The occurrence of certain taxa which have only been previously recorded in the Canning Basin from the Virgin Hills Formation, together with the lithology of the specimen, and palaeoecological information afforded by the conodonts, suggests that the specimen was derived from the uppermost section of the Virgin Hills Formation. Introduction A large dinichthyid placoderm fish skull has recently been described as a new genus, Westralichthys Long (1987) even though the exact location and lithological source of the specimen is unknown. A limited conodont fauna of 76 elements was recovered from dilute acetic acid preparation of the dinichthyid skull. The fauna contains a number of age diagnostic species which have been used to narrow the possible age and stratigraphic source of the specimen. It is significant that the conodonts indicate a much younger age for the skull than the well known lower Frasnian Gogo fish fauna (Gardiner and Miles 1975), also from the same region.
    [Show full text]
  • Igcp596 Abstract Volume 20110827
    ZOBODAT - www.zobodat.at Zoologisch-Botanische Datenbank/Zoological-Botanical Database Digitale Literatur/Digital Literature Zeitschrift/Journal: Berichte des Institutes für Geologie und Paläontologie der Karl- Franzens-Universität Graz Jahr/Year: 2011 Band/Volume: 16 Autor(en)/Author(s): Izokh N.G. Artikel/Article: Biodiversity of Devonian conodonts from the West Siberia. 49-51 ©Institut f. Erdwissensch., Geol. u. Paläont., Karl-Franzens-Universität Graz; download www.biologiezentrum.at Ber. Inst. Erdwiss. K.-F.-Univ. Graz ISSN 1608-8166 Band 16 Graz 2011 IGCP 596 Opening Meeting Graz, 19-24th September 2011 Biodiversity of Devonian conodonts from the West Siberia IZOKH, N.G. Trofimuk Institute of Petroleum Geology and Geophysics SB RAS, Acad. Koptyug Av., 3, Novosibirsk, 630090, Russia; [email protected] In West Siberia the Devonian deposits compose a part of the shelf belt along the western margin of the Siberian continent and extend from W to NE: from Altai to Salair and Kuznetsk Basin deepening farther north beneath the Mesozoic-Cenozoic cover of the West Siberian Lowland. Devonian marine sediments contain abundant benthic and pelagic fauna. Conodont associations were recovered from the NW and central parts of the West-Siberia Geo syncline (WSG), Rudny and Gorny Altai, Kuznetsk Basin. Many conodont index-species of two (deep- and shallow-water) parallel zonal scales were recovered from the several Devonian sections. The north-west of the West-Siberia Geosyncline. The Upper Emsian – middle Famennian conodont association from the Shchuchiy Ledge (IZOKH 2011). The Emsian association includes: Polygnathus serotinus TELFORD, P. bultyncki WEDDIGE, Neopanderodus perliniatus ZIEGLER & LINDSTROM, N. cf. transitans ZIEGLER & LINDSTROM, Вelodella devonica (STAUFFER), В.
    [Show full text]
  • Conodont Stratigraphy of a Highly Tectonised Silurian-Devonian Section in the San Basilio Area (SE Sardinia, Italy)
    Bollettino della Societa Paleontologica Italiana 40 (3), 2001 ISSN 0375-7633 Modena, Dicembre 2001 Conodont stratigraphy of a highly tectonised Silurian-Devonian section in the San Basilio area (SE Sardinia, Italy) Carlo CORRADINI F rancesco LEONE Alfredo Loi Enrico SERPAGLI Dipartimento del Museo di Paleobiologia Dipartimento di Scienze della Terra Dipartimento del Museo di Paleobiologia e dell'Orto Botanico Universita di Cagliari e dell'Orto Botanico Universidt di Modena e Reggio Emilia Universita di Modena e Reggio Emilia KEYWORDS- Conodonts, Biostratigraphy, Tectonics, Silurian, Devonian, SE Sardinia. ABSTRACT- Several conodont species belonging to five "late Silurian biozones (Ancoradella ploeckensis, Polygnathoides siluricus, Ozarkodina crispa, Ozarkodina remscheidensis, Oulodus elegans detortus) and four Early and Late Devonian biozones (delta, pesavis, kitabicus-excavatus and Late rhenana) allow a better interpretation of stratigraphy and tectonics of the San Basilio area in western Gerrei. Frasnian sediments are documented for the first time in SE Sardinia. RIASSUNTO- [Stratigrafia a conodonti di una sezione forremente tettonizzata di eta Siluriano-Devoniano nell'area di San Basilio (Sardegna SE)] - Grazie alla biostratigrafia a conodonti viene interpretata la complessa tettonica di una sezione nell'area di San Basilio (Sardegna sud-orientale) e viene ricostruita la successione originaria. Sono documentate cinque biozone a conodonti del Siluriano superiore (Ancoradella eioeckensis, Polygnathoides siluricus, Ozarkodina crispa,
    [Show full text]
  • Six Charts Showing Biostratigraphic Zones, and Correlations Based on Conodonts from the Devonian and Mississippian Rocks of the Upper Mississippi Valley
    14. GS: C.2 ^s- STATE OF ILLINOIS DEPARTMENT OF REGISTRATION AND EDUCATION SIX CHARTS SHOWING BIOSTRATIGRAPHIC ZONES, AND CORRELATIONS BASED ON CONODONTS FROM THE DEVONIAN AND MISSISSIPPIAN ROCKS OF THE UPPER MISSISSIPPI VALLEY Charles Collinson Alan J. Scott Carl B. Rexroad ILLINOIS GEOLOGICAL SURVEY LIBRARY AUG 2 1962 ILLINOIS STATE GEOLOGICAL SURVEY URBANA 1962 CIRCULAR 328 I I co •H co • CO <— X c = c P o <* CO o CO •H C CD c +» c c • CD CO ft o e c u •i-CU CD p o TJ o o co CO TJ <D CQ x CO CO CO u X CQ a p Q CO *» P Mh coc T> CD *H O TJ O 3 O o co —* o_ > O p X <-> cd cn <d ^ JS o o co e CO f-l c c/i X ex] I— CD co = co r CO : co *H U to •H CD r I .h CO TJ x X CO fc TJ r-< X -P -p 10 co C => CO o O tJ CD X5 o X c c •> CO P <D = CO CO <H X> a> s CO co c %l •H CO CD co TJ P X! h c CD Q PI CD Cn CD X UJ • H 9 P CD CD CD p <D x c •—I X Q) p •H H X cn co p £ o •> CO o x p •>o C H O CO "P CO CO X > l Ct <-c . a> CD CO X •H D. CO O CO CM (-i co in Q.
    [Show full text]
  • Catalog of Type Specimens of Invertebrate Fossils: Cono- Donta
    % {I V 0> % rF h y Catalog of Type Specimens Compiled Frederick J. Collier of Invertebrate Fossils: Conodonta SMITHSONIAN CONTRIBUTIONS TO PALEOBIOLOGY NUMBER 9 SERIAL PUBLICATIONS OF THE SMITHSONIAN INSTITUTION The emphasis upon publications as a means of diffusing knowledge was expressed by the first Secretary of the Smithsonian Institution. In his formal plan for the Insti­ tution, Joseph Henry articulated a program that included the following statement: "It is proposed to publish a series of reports, giving an account of the new discoveries in science, and of the changes made from year to year in all branches of knowledge." This keynote of basic research has been adhered to over the years in the issuance of thousands of titles in serial publications under the Smithsonian imprint, com­ mencing with Smithsonian Contributions to Knowledge in 1848 and continuing with the following active series: Smithsonian Annals of Flight Smithsonian Contributions to Anthropology Smithsonian Contributions to Astrophysics Smithsonian Contributions to Botany Smithsonian Contributions to the Earth Sciences Smithsonian Contributions to Paleobiology Smithsonian Contributions to Zoology Smithsonian Studies in History and Technology In these series, the Institution publishes original articles and monographs dealing with the research and collections of its several museums and offices and of profes­ sional colleagues at other institutions of learning. These papers report newly acquired facts, synoptic interpretations of data, or original theory in specialized fields. These publications are distributed by mailing lists to libraries, laboratories, and other in­ terested institutions and specialists throughout the world. Individual copies may be obtained from the Smithsonian Institution Press as long as stocks are available.
    [Show full text]
  • Guide to Fossil C911ecting
    Educational Series - 1 ISSN 0544-3083 Guide to Fossil C911ecting ~~1. I ~l in/~~;/~_ Minnesota Minnesota Geological Survey Guide To FossIl Collecting In Minnesota R. K. Hogberg, R. E. Sloan and Sarah Tufford First edition 1965: revised edition 1967: reprinted 1979: reprinted 1985 ISSN 0544-3083 Geologic Time Chart_Minnesota Time Era Period Events in Minnesota Characteristic Life Quaternary 20 ENO· .ofMommals ZOIC 40 Tertiary No record in Minnesota ~ 60 M Sea enters Minnesota from E Cretaceous 100 S West. Deposition of sediments. 0 Z A~ of R.ptil.s 0 Jurassic I No record in Minnesota C Triassic k 200 Permian Ag.of Pennsylvanian No record in Minnesota Amphibians ..~ Mississippian ~ ~ ~ P Sea enters Minnesota from 300 Devonian "-() South. Deposition of sediments. .. A .~ L ~ . Silurian No record in Minnesota Ag. of Corals E 0 • of Straight 400 Ordovician Seas cover Minnesota at intervals. Z c_~ 0 I C Cambrian Deposition of sediments. A~ of Trilobit.s ~ Lava flows and deposition of sediments. PRECAMBRIAN Deposition of iron-rich sediments. First r.cord oIl,f. 4 \12 billion years lang Formation of mountains and igneous intrusions. Guide To FOSJt'l Colletting In Minnesota FoSSILS tell us what life was like on earth in ancient geologic time. A fossil clam, for example, lived on a sea bottom much as its modern relatives do. By finding many fossil clams, we can deter­ mine the extent of a prehistoric sea. Fossils also indicate the climates of the geologic past. Fossils show us that life on earth has not always been the same. In fact primitive algae and bacteria have given rise to reptile s, mammals, and finally to man.
    [Show full text]
  • Conodont Faunas from Portugal and Southwestern Spain
    v. d. Boogaard, Middle Devonian conodonts from Portugal, Scripta Geol. 13 (1972) 1 Conodont faunas from Portugal and southwestern Spain Part 1. A Middle Devonian fauna from near Montemor-o-Novo M. van den Boogaard Van den Boogaard, M. Conodont faunas from Portugal and southwestern Spain. Part 1. A Middle Devonian fauna from near Montemor-o-Novo. - Scripta Geol., 13: 1-11, 6 figs., 1 pl., Leiden, December 1972. Conodonts of Couvinian age are recorded from limestone beds incorporated in a sedimentary sequence which was previously considered to be Late Devonian or Early Carboniferous in age. M. van den Boogaard, Rijksmuseum van Geologie en Mineralogie, Hooglandse Kerkgracht 17, Leiden, The Netherlands. Introduction 1 Geological setting 4 Comments on the faunas 4 Stratigraphie results 8 References 9 Introduction The stratigraphy of the Palaeozoic rocks of southern Portugal and southwestern Spain is still not well known in detail, one of the reasons being the scarcity of fossils. Therefore conodonts obtained from local limestone lenses have given welcome information (Höllinger, 1959; van den Boogaard, 1963). Occasionally, new outcrops of limestone have been encountered by geologists presently at work in that region, and during the last few years I have received several samples of these limestones for investigation. Since further limestone outcrops may be dis- covered and samples thereof sent to me, and since there is no stratigraphical control, I decided to publish the results separately but under the general heading 2 v. d. Boogaard, Middle Devonian conodonts from Portugal, Scripta Geol. 13 (1972) Fig. 1. Map showing the locality of Pedreira da Engenharia (= P.E.).
    [Show full text]
  • Conodont Biostratigraphy of the Bakken and Lower Lodgepole Formations (Devonian and Mississippian), Williston Basin, North Dakota Timothy P
    University of North Dakota UND Scholarly Commons Theses and Dissertations Theses, Dissertations, and Senior Projects 1986 Conodont biostratigraphy of the Bakken and lower Lodgepole Formations (Devonian and Mississippian), Williston Basin, North Dakota Timothy P. Huber University of North Dakota Follow this and additional works at: https://commons.und.edu/theses Part of the Geology Commons Recommended Citation Huber, Timothy P., "Conodont biostratigraphy of the Bakken and lower Lodgepole Formations (Devonian and Mississippian), Williston Basin, North Dakota" (1986). Theses and Dissertations. 145. https://commons.und.edu/theses/145 This Thesis is brought to you for free and open access by the Theses, Dissertations, and Senior Projects at UND Scholarly Commons. It has been accepted for inclusion in Theses and Dissertations by an authorized administrator of UND Scholarly Commons. For more information, please contact [email protected]. CONODONT BIOSTRATIGRAPHY OF THE BAKKEN AND LOWER LODGEPOLE FORMATIONS (DEVONIAN AND MISSISSIPPIAN), WILLISTON BASIN, NORTH DAKOTA by Timothy P, Huber Bachelor of Arts, University of Minnesota - Morris, 1983 A Thesis Submitted to the Graduate Faculty of the University of North Dakota in partial fulfillment of the requirements for the degree of Master of Science Grand Forks, North Dakota December 1986 This thesis submitted by Timothy P. Huber in partial fulfillment of the requirements for the Degree of Master of Science from the University of North Dakota has been read by the Faculty Advisory Committee under whom the work has been done, and is hereby approved. This thesis meets the standards for appearance and conforms to the style and format requirements of the Graduate School at the University of North Dakota and is hereby approved.
    [Show full text]
  • The Middle and Upper Ordovician Conodont Faunas of Minnesota
    MINNESOTA GEOLOGICAL SURVEY SP-4 Special Publication Series The Middle and Upper Ordovician Conodont Faunas of Minnesota G. F. Webers UNIVERSITY OF MINNESOTA MINNEAPOLIS • 1966 THE MIDDLE AND UPPER ORDOVICIAN CONODONT FAUNAS OF MINNESOTA by G. F. Webers CONTENTS Page Abstract. 1 Introduction . 1 Procedures. 3 Sampling method . 3 Concentration and separation techniques . 4 Conodont photography. 4 Natural assemblages of conodonts. 5 General discussion. 5 Statistical determination of natural assemblages ............. 5 Present problems in the zoological nomenclature of conodonts. 6 Results of investigation . 7 Statistical assemblages. 7 Faunal list. .. 10 Natural species. .. 10 Possible natural species. .. 12 Residual form species . .. 13 Facies concepts ....................................... " 14 Stratigraphic distribution of conodonts . .. 15 Faunal migrations. .. 18 Comments on correlation . 19 Conclusions. .. 21 Systematic descriptions 21 References 107 Appendix .. .. 113 Stratigraphic Sections .................................... 113 III ILLUSTRATIONS Plate 1 - Stratigraphic distribution of conodonts: . 77 2 - 13 - Conodont illustrations. 78 14-15 - Phosphatic microfossil illustrations ............... 102 Figure 1 - Map showing locations of stratigraphic sections. 2 2 - Biostratigraphic zonation of conodonts ......... 16 IV THE MIDDLE AND UPPER ORDOVICIAN CONODONT .FAUNAS OF MINNESOTA by G. F. Webers ABSTRACT About thirty-five thousand identifiable conodonts were re­ covered from samples of Middle and Upper Ordovician sedi­ mentary
    [Show full text]