DOCSLIB.ORG

Some Cretaceous Long-Looped Terebratulide Brachiopods Analysed in the Light of the Diversity Observed in the Ontogeny of Recent Representatives DANIÈLE GASPARD1

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Some Cretaceous Long-Looped Terebratulide Brachiopods Analysed in the Light of the Diversity Observed in the Ontogeny of Recent Representatives DANIÈLE GASPARD1 Bull. Soc. géol. Fr., 2003, t. 174, no 3, pp. 261-269 Some Cretaceous long-looped terebratulide brachiopods analysed in the light of the diversity observed in the ontogeny of Recent representatives DANIÈLE GASPARD1 Key words. – Terebratulide Brachiopods, Brachial ribbon, Diversity, Ontogeny, Cretaceous, Recent. Abstract. – The shape of the loop is of prime importance in brachiopod terebratulide classification and has been widely discussed and revised [Williams et al., 1996]. In the Rhynchonelliforma, we have focused our attention on the Terebratellidina, long-looped brachiopods with a wide-range diversity. The observation of its internal structure in recent representatives, investigated from the early growth stages, using the Scanning Electron Microscope (S.E.M.), demon- strates the complexity of its growth. Two main growth types of the descending branches are expressed during early on- togeny [Gaspard, 2002], followed in both cases by forward growth in opposite directions, with a brachial ribbon attached or unattached to the median septum. The purpose of such observations is to find in the fossil records similar growth types. An approach from the recent representatives allows a better knowledge of the Cretaceous taxa considered, even if the only way to recognise the loop is by means of transverse serial sections. The study of the recent terebratellidine loop facilitates the establishment of links between species from different geological periods. It helps to determine superfamilial distinctions and to find possible ancestors of recent terebratellidines. Brachiopodes térébratulides crétacés à grande boucle brachiale analysés à la lumière de la diversité exprimée lors de l’ontogenèse de représentants actuels Mots clés. – Brachiopodes térébratulides, Boucle brachiale, Diversité, Ontogenèse, Crétacé, Actuel. Résumé. – La classification des brachiopodes de longue date abusivement basée sur la forme du ruban brachial, support du lophophore, a été maintes fois remise en question puis revue par Williams et al. [1996]. Chez les Rhynchonellifor- mea, notre attention a surtout porté sur les Terebratellidina, brachiopodes dont le brachidium s’exprime avec une très grande diversité de forme. Une observation de cette structure interne chez des formes actuelles, documentée depuis le stade juvénile, avec l’aide du microscope électronique à balayage (M.E.B.), montre la complexité de leur évolution. Celle-ci s’exprime, pr. p., par deux types principaux de croissance d’une partie du brachidium (les branches descendan- tes) lors de l’ontogenèse précoce [Gaspard, 2002]. Ces deux types n’évoluent pas forcément de façon parallèle, dans la mesure où l’on observe des aboutissements croisés, selon que la boucle brachiale reste attachée ou non au septum. Le but de telles observations est de retrouver des cas équivalents dans les archives fossiles. Une étude à partir des brachio- podes actuels permet de mieux connaître la structure brachiale chez les représentants du Crétacé; l’observation de sec- tions sériées transversales est l’étape obligée pour reconnaître cette structure. Ceci aboutit à mieux cerner le niveau de la superfamille et même de reconstituer les lignées ancestrales des térébratulides actuels. INTRODUCTION considered. A terminology with taxonomic names used for the adult lophophore skeletal supports of recent former “Te- The loop shape has always been of prime importance in rebratellacea” was proposed [Beecher, 1895; Thomson, brachiopod terebratulide classifications, a question criti- 1927; Allan, 1940; Elliott, 1953 and Atkins, 1960-1961, cally discussed by Williams and Rowell [in Moore Ed., among others]. It allowed to distinguish stages of the loop 1965]. How to tackle this classification which is still a topi- development of Dallinidae, Laqueidae, Macandreviidae, Te- cal question ? With this aim, Williams et al. [1996] pro- rebratellidae, Megathyrididae, Platiidae, and Kraussinidae; posed a revised supra-ordinal classification. Various while different parts of the loop were described as : crura, biological and morphological features have been taken into ac- crural processes, descending branches, ascending branches, count to distinguish, in the subphylum Rhynchonelliformea, median septum or septal pillar, hood, and lacunae. This ap- among the Terebratulida : the Terebratulidina and Terebra- proach introduced confusion during comparative studies. tellidina Suborders. I will focus on the representatives of the Richardson [1975] proposed another terminology, focusing latter suborder. on the use of descriptive in place of generic adjectives to The brachiopods when assessed by biologists or pa- differentiate stages of the loop development. She did not, laeontologists pose problems, because most often variabili- however pay particular attention to the origin of the descen- ty and diversity of all parts of the shell are not fully ding branches. 1Université de Paris-Sud, Département des Sciences de la Terre, Bât. 509, F- 91405 Orsay cedex. Manuscrit déposé le 13 mai 2002 ; accepté après révision le 5 décembre 2002; Bull. Soc. géol. Fr., 2003, no 3 262 D. GASPARD The early loop ontogeny particularly for recent Occurrences of descending branches growing only from long-looped terebratulide brachiopods, when investigated the crura using the S.E.M., highlights the micromorphology and Investigations using the S.E.M. facilitated studies of the clearly shows similarities [Gaspard, 2003a, observations micromorphology of different parts of the brachidium and from the Walda cruise collections] or differences in deve- their microstructure. Personal observations of dorsal valves lopment. Further observations distinguish two types of (2-5 mm) from species of the recent genera Macandrevia growth with their corresponding skeletal fabrics [Gaspard KING and Ecnomiosa COOPER show similarities in their 2003b]. The observation at this level reflects metamorpho- early loop ontogeny reported in MacKinnon and Gaspard sis of the loop and developmental constraint advocated also [1996]. The descending branches in M. africana COOPER, by Gunji [1987]. Rather than attach too much importance to M. cranium (MÜLLER)andE. inexpectata COOPER grow the origin of the descending branches, it also appears neces- from the crura (pl. I, fig. 1,14) [Gaspard, 2003b, Fig. 1B] to sary to take account of all the brachial components and the join with the anterior part of the septal pillar (pl. I, fig. 5,6). way they grow. This approach emphasises differences be- This later structure evolves from a juvenile condition (pl. I, tween the two main ways of growth and can be used to ex- fig. 1-3, 13) via a blade-like structure (pl. I, fig. 14; amine data of the fossil records in better conditions. Such [Gaspard, 2003b, Fig. 1A], dorsal valve around 4mm), to an comparative studies of Cretaceous and recent specimens im- immature stage with a more elaborate hood (pl. I, fig. 7), prove perception of possible links and ancestors. which is spiny at the anterior part. Later, this hood gives rise to the ascending branches of the brachial loop. The complex process of biomineralization appears in LOOP ONTOGENY IN RECENT TAXA the skeletal fabrics of the brachidium. Incipient crura are fi- brous with a smooth anterior end (pl. I, fig.4). External The early loop ontogeny is illustrated by two main growth (dorsal) surfaces of the descending branches, internal side ways : (1) descending branches growing from the crura, (2) of the hood and the ascending branches are fibrous with a descending branches growing both from the crura and the smooth brachiotest (term proposed by MacKay et al. septal pillar. Further stages will be presented to ensure com- [1994]) at the marginal zone (pl. I, fig. 7-8). The basal part parisons with the fossil taxa. of the septal pillar is fibrous near the valve floor (pl. I, PLATE I Fig.1. – SEM image of a juvenile dorsal valve of Macandrevia africana COOPER from Walda cruise collections (off Angola, 3431 m, station CY 14) (s : median septum) – Valve dorsale juvenile de Macandrevia africana COOPER au M.E.B. Fig. 2. – Juvenile dorsal valve of M. africana (more advanced stage). – Valve dorsale juvénile de M. africana à un stade plus avancé. Fig. 3. – Detail of the septal pillar (sp) at a juvenile stage. – Détail du pilier septal (sp) à l’état juvénile. Fig. 4. – Incipient crus (cr) and fibrous calcite mosaic. – Crura naissant (cr) et mosaïque fibreuse calcitique. Fig. 5. – Ends of descending branches (db) converging to the anterior part of the septum topped by the incipient hood (ih), M. africana.–Extremités des branches descendantes convergeant vers la partie antérieure du septum surmonté par une structure naissante en forme de coiffe. (ih), M. africana. Fig. 6. – Detail of the end of the left descending branch on the previous figure. – Détail de l’extrémité de la branche descendante gauche sur la figure pré- cédente. Fig. 7. – Immature dorsal valve of M. africana showing the descending branches (db) and the beginning opened hood (h) with anterior projecting spines (white arrows). The SEM inclined view reveals the narrow waist at the basal part of the septal pillar (sp) – Valve dorsale immature de M. africana révélant les branches descendantes (db) et l’évasement naissant au sommet du septum avec des épines projetées antérieurement (flêches blanches). La vue in- clinée, au MEB, révèle l’étranglement basal du pilier septal. Fig. 8. – Detailed upper part of the hood on figure 7, revealing the incipient ascending branches (ab) fibrous internally, while their external surfaceandthe internal
Load more

Recommended publications
  • Middle Permian Brachiopods from Setamai, the Type Locality of The
    Sci. Rep., Niigata Univ., Ser. E(Geology), No. 16, 1-33, 2001 Middle Permian brachiopods from Setamai,the type locality of the Kanokura Formation,southern Kitakami Mountains, northeast Japan Jun-ichi TAZAWA* and Yosuke IBARAKI** Abstract A Middle Permian (Kubergandian-Murgabian) brachiopod fauna is described from the type section of the lower Kanokura Formation in the Setamai area, southern Kitakami Moun tains, northeast Japan. This fauna contains the following nine species: Transennatia gratiosa, Tyloplecta cf. yangzeensis, Waagenoconcha sp., Linoproductus cora, Cancrinella sp., Leptodus nobilis, Derbyia grandis, Derbyia nipponica and Spiriferella keilhavii. The Setamai fauna is characterized by the mixuture of both the Boreal and Tethyan elements. Key words: Boreal-Tethyan mixed fauna, brachiopods. Middle Permian, Setamai, southern Kitakami Mountains. Introduction The Permian brachiopod specimens described in this paper were collected by the authors and late Prof. M. Minato of Hokkaido University from nine localities in the Kanokurasawa and Kacchizawa valleys in the Setamai area, the type locahty of the lower part of the Kanokura Formation, southern Kitakami Mountains, northeast Japan (Figs. 1,2). The Middle Permian Kanokura Formation was named by Onuki (1937) as the Kanokura Stage, but Onuki (1956)later changed the name to 'formation' with the outcrops along the Kanokurasawa valley as its type section. The stratigraphy of the Kanokura Formation in the Setamai area was described and discussed in detail by Minato et al.(1954,1978,1979), Onuki (1956, 1969), Murata (1964), Saito (1966, 1968) and Choi (1973, 1976). In palaeontology, many species of fusulinaceans (Choi, 1973), corals (Minato, 1955; Minato and Kato, 1965), brachiopods (Hayasaka, 1953; Hayasaka and Minato, 1956; Minato and Nakamura, 1956; * Department of Geology, Faculty of Science, Niigata University, Niigata 950-2181, Japan ** Graduate School of Science and Technology, Niigata University, Niigata 950-2181, Japan (Manuscript received 24 November, 2(XX); accepted 21 December, 2000) J.
    [Show full text]
  • Brachiopoda from the Southern Indian Ocean (Recent)
    I - MMMP^j SA* J* Brachiopoda from the Southern Indian Ocean (Recent) G. ARTHUR COOPER m CONTRIBUTIONS TO PALEOBIOLOGY • NUMBER SERIES PUBLICATIONS OF THE SMITHSONIAN INSTITUTION Emphasis upon publication as a means of "diffusing knowledge" was expressed by the first Secretary of the Smithsonian. In his formal plan for the Institution, Joseph Henry outlined 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 theme of basic research has been adhered to through the years by thousands of titles issued in series publications under the Smithsonian imprint, commencing with Smithsonian Contributions to Knowledge in 1848 and continuing with the following active series: Smithsonian Contributions to Anthropology Smithsonian Contributions to Astrophysics Smithsonian Contributions to Botany Smithsonian Contributions to the Earth Sciences Smithsonian Contributions to the Marine Sciences Smithsonian Contributions to Paleobiology Smithsonian Contributions to Zoology Smithsonian Studies in Air and Space Smithsonian Studies in History and Technology In these series, the Institution publishes small papers and full-scale monographs that report the research and collections of its various museums and bureaux or of professional colleagues in the world of science and scholarship. The publications are distributed by mailing lists to libraries, universities, and similar institutions throughout the world. Papers or monographs submitted for series publication are received by the Smithsonian Institution Press, subject to its own review for format and style, only through departments of the various Smithsonian museums or bureaux, where the manuscripts are given substantive review.
    [Show full text]
  • The Present-Day Mediterranean Brachiopod Fauna: Diversity, Life Habits, Biogeography and Paleobiogeography*
    SCI. MAR., 68 (Suppl. 1): 163-170 SCIENTIA MARINA 2004 BIOLOGICAL OCEANOGRAPHY AT THE TURN OF THE MILLENIUM. J.D. ROS, T.T. PACKARD, J.M. GILI, J.L. PRETUS and D. BLASCO (eds.) The present-day Mediterranean brachiopod fauna: diversity, life habits, biogeography and paleobiogeography* A. LOGAN1, C.N. BIANCHI2, C. MORRI2 and H. ZIBROWIUS3 1 Centre for Coastal Studies and Aquaculture, University of New Brunswick, Saint John, N.B. E2L 4L5, Canada. E-mail: [email protected] 2 DipTeRis (Dipartimento Territorio e Risorse), Università di Genova, Corso Europa 26, I-16132 Genoa, Italy. 3 Centre d’Océanologie de Marseille, Station Marine d’Endoume, Rue Batterie des Lions, 13007 Marseilles, France. SUMMARY: The present-day brachiopods from the Mediterranean Sea were thoroughly described by nineteenth-century workers, to the extent that Logan’s revision in 1979 listed the same 11 species as Davidson, almost 100 years earlier. Since then recent discoveries, mainly from cave habitats inaccessible to early workers, have increased the number of species to 14. The validity of additional forms, which are either contentious or based on scanty evidence, is evaluated here. Preferred substrates and approximate bio-depth zones of all species are given and their usefulness for paleoecological reconstruction is discussed. A previous dearth of material from the eastern Mediterranean has now been at least partially remedied by new records from the coasts of Cyprus, Israel, Egypt, and, in particular, Lebanon and the southern Aegean Sea. While 11 species (79 % of the whole fauna) have now been recorded from the eastern basin, Terebratulina retusa, Argyrotheca cistellula, Megathiris detruncata and Platidia spp.
    [Show full text]
  • A Mixed Permian-Triassic Boundary Brachiopod Fauna from Guizhou Province, South China
    Rivista Italiana di Paleontologia e Stratigrafia (Research in Paleontology and Stratigraphy) vol. 125(3): 609-630. November 2019 A MIXED PERMIAN-TRIASSIC BOUNDARY BRACHIOPOD FAUNA FROM GUIZHOU PROVINCE, SOUTH CHINA HUI-TING WU1, YANG ZHANG2* & YUAN-LIN SUN1 1School of Earth and Space Sciences, Peking University, Beijing, China. 2*Corresponding author. School of Earth Sciences & Resources, China University of Geosciences, Beijing, China. E-mail: [email protected] To cite this article: Wu H.-T., Zhang Y. & Sun Y.-L. (2019) - A mixed Permian-Triassic boundary brachiopod fauna from Guizhou Province, South China. Riv. It. Paleont. Strat. 125(3): 609-630. Keywords: brachiopod; Changhsingian; mixed facies; extinction; taxonomy. Abstract. Although many studies have been concerned with Changhsingian brachiopod faunas in South China, brachiopod faunas of the mixed nearshore clastic-carbonate facies have not been studied in detail. In this paper, a brachiopod fauna collected from the Changhsingian Wangjiazhai Formation and the Griesbachian Yelang Formation at the Liuzhi section (Guizhou Province, South China) is described. The Liuzhi section represents mixed clastic- carbonate facies and yields 30 species of 16 genera of brachiopod. Among the described and illustrated species, new morphological features of genera Peltichia, Prelissorhynchia and Spiriferellina are provided. Because of limited materials, four undetermined species instead of new species from these three genera are proposed. The Liuzhi brachiopod fauna from lower part of the Wangjiazhai Formation shares most genera with fauna of carbonate facies in South China, and the fauna from the upper part is similar to that from the Zhongzhai and Zhongying sections, representative shallow- water clastic facies sections in Guizhou Province.
    [Show full text]
  • Mise En Page 1
    BITNER M. A., 2007. Shallow water brachiopod species of New Caledonia, in: Payri C.E., Richer de Forges B. (Eds.) Compendium of marine species of New Caledonia, Doc. Sci. Tech. II7, seconde édition, IRD Nouméa, p. 171 Shallow water brachiopod species of New Caledonia Maria Aleksandra BITNER Institute of Paleobiology, Polish Academy of Sciences, ul. Tawarda 51/55, 00-818 Warszawa Poland [email protected] Brachiopods are entirely marine, sessile, benthic invertebrates with soft body enclosed in a shell con - sisting of two valves which differ in size, shape, and sometimes even in ornamentation and colour. Most brachiopods have calcareous shell, except lingulids which have organophosphatic shell. They have a very long and impressive geological history but today they are regarded as a minor phylum and are reduced to about 110 genera. Nevertheless, brachiopods are widely distributed, being present in all of the world’s oceans and they can locally dominate the benthic marine communities. Their bathymetric range is very wide, from the intertidal zone to depths of about 6000 meters, however, most commonly they occur from 100 to 500 m. Among the 30 brachiopod species occurring in the New Caledonia region (d’Hondt 1987; Emig 1988; Laurin 1997), only four of them have been found in the shallow water less than 100 meters deep. The shallow water brachiopod fauna consists of 4 species belonging to 3 genera, in 3 families, 3 orders (Lingulida, Terebratulida and Thecideida) and 2 subphyla (Linguliformea and Rhynchonelliformea). Two Lingula species, namely L. anatina Lamarck and L. adamsi Dall, are recognised in New Caledonia.
    [Show full text]
  • A Note on Dallina Septigera (Loven), (Brachiopoda, Dallinidae)
    J. mar. bioi. Ass. U.K. (1960) 39, 91-99 91 Printed in Great Britain A NOTE ON DALLINA SEPTIGERA (LOVEN), (BRACHIOPODA, DALLINIDAE) By D. ATKINS,D.Sc. From the Plymouth Laboratory (Plate I and Text-figs. 1-5) The discovery of a homoeomorph, Pallax dalliniformis, of Dallina septigera (Loven) dredged with that species (Atkins, 1960) and, it is believed, some• times confused with it, certainly by Fischer & Oehlert (1891), has made a brief redescription desirable. During the present work more than a hundred D. septigera of shell length 5-31 mm have been obtained, and most of them examined internally. The original description in Latin-without figures-of Dallina septigera (= Terebratula septigera) was by Loven in 1846 (p. 183). Unfortunately his description does not now clearly separate his species from Pallax dallini• formis, except perhaps his failure to mention the presence of dental plates, pedicle collar and spiculation. It is doubtful how much weight can be attached to this, for on the same page he failed to mention the presence of dental plates in Macandrevia cranium. He gave the length as 28 mm, width as 21·5 mm and depth as 17 mm. The Stockholm Natural History Museum, the most likely Museum to possess Loven's type specimen, unfortunately does not have it, and it is probable that he did not designate one. The Museum, however, does possess old collections of dried shells of this species from Norway and the ~orth Sea, which Loven probably studied. Through the kindness of Dr H.Mutvei a large specimen from these was loaned to me: he stated that it is not known with certainty whether it was collected before or after 1846-the date of publication of Loven's paper.
    [Show full text]
  • Dimerelloid Rhynchonellide Brachiopods in the Lower Jurassic of the Engadine (Canton Graubünden, National Park, Switzerland)
    1661-8726/08/010203–20 Swiss J. Geosci. 101 (2008) 203–222 DOI 10.1007/s00015-008-1250-8 Birkhäuser Verlag, Basel, 2008 Dimerelloid rhynchonellide brachiopods in the Lower Jurassic of the Engadine (Canton Graubünden, National Park, Switzerland) HEINZ SULSER & HEINZ FURRER * Key words: brachiopoda, Sulcirostra, Carapezzia, new species, Lower Jurassic, Austroalpine ABSTRACT ZUSAMMENFASSUNG New brachiopods (Dimerelloidea, Rhynchonellida) from Lower Jurassic Neue Brachiopoden (Dimerelloidea, Rhynchonellida) aus unterjurassischen (?lower Hettangian) hemipelagic sediments of the Swiss National Park in hemipelagischen Sedimenten (?unteres Hettangian) des Schweizerischen Na- south-eastern Engadine are described: Sulcirostra doesseggeri sp. nov. and tionalparks im südöstlichen Engadin werden als Sulcirostra doesseggeri sp. Carapezzia engadinensis sp. nov. Sulcirostra doesseggeri is externally similar to nov. und Carapezzia engadinensis sp. nov. beschrieben. Sulcirostra doesseggeri S. fuggeri (FRAUSCHER 1883), a dubious species, that could not be included in ist äusserlich S. fuggeri (FRAUSCHER 1883) ähnlich, einer zweifelhaften Spezies, a comparative study, because relevant samples no longer exist. A single speci- die nicht in eine vergleichende Untersuchung einbezogen werden konnte, weil men was tentatively assigned to Sulcirostra ?zitteli (BÖSE 1894) by comparison kein relevantes Material mehr vorhanden ist. Ein einzelnes Exemplar wird als of its external morphology with S. zitteli from the type locality. The partly Sulcirostra ?zitteli (BÖSE 1894) bezeichnet, im Vergleich mit der Aussenmor- silicified brachiopods are associated with sponge spicules, radiolarians and phologie von S. zitteli der Typuslokalität. Die teilweise silizifizierten Brachio- crinoid ossicles. Macrofossils are rare: dictyid sponges, gastropods, bivalves, poden waren mit Schwammnadeln, Radiolarien und Crinoiden-Stielgliedern crustaceans, shark teeth and scales of an actinopterygian fish. The Lower Ju- assoziiert.
    [Show full text]
  • Tertiary and Quaternary Brachiopods from the Southwest Pacific
    Tertiary and Quaternary Brachiopods from the Southwest Pacific G. ARTHUR COOPER SMITHSONIAN CONTRIBUTIONS TO PALEOBIOLOGY NUMBER 38 SERIES PUBLICATIONS OF THE SMITHSONIAN INSTITUTION Emphasis upon publication as a means of "diffusing knowledge" was expressed by the first Secretary of the Smithsonian. In his formal plan for the Institution, Joseph Henry outlined 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 theme of basic research has been adhered to through the years by thousands of titles issued in series publications under the Smithsonian imprint, commencing with Smithsonian Contributions to Knowledge in 1848 and continuing with the following active series: Smithsonian Contributions to Anthropology Smithsonian Contributions to Astrophysics Smithsonian Contributions to Botany Smithsonian Contributions to the Earth Sciences Smithsonian Contributions to the Marine Sciences Smithsonian Contributions to Paleobiology Smithsonian Contributions to Zoology Smithsonian Studies in Air and Space Smithsonian Studies in History and Technology In these series, the Institution publishes small papers and full-scale monographs that report the research and collections of its various museums and bureaux or of professional colleagues in the world of science and scholarship. The publications are distributed by mailing lists to libraries, universities, and similar institutions throughout the world. Papers or monographs submitted for series publication are received by the Smithsonian Institution Press, subject to its own review for format and style, only through departments of the various Smithsonian museums or bureaux, where the manuscripts are given substantive review.
    [Show full text]
  • An Annotated Checklist of the Marine Macroinvertebrates of Alaska David T
    NOAA Professional Paper NMFS 19 An annotated checklist of the marine macroinvertebrates of Alaska David T. Drumm • Katherine P. Maslenikov Robert Van Syoc • James W. Orr • Robert R. Lauth Duane E. Stevenson • Theodore W. Pietsch November 2016 U.S. Department of Commerce NOAA Professional Penny Pritzker Secretary of Commerce National Oceanic Papers NMFS and Atmospheric Administration Kathryn D. Sullivan Scientific Editor* Administrator Richard Langton National Marine National Marine Fisheries Service Fisheries Service Northeast Fisheries Science Center Maine Field Station Eileen Sobeck 17 Godfrey Drive, Suite 1 Assistant Administrator Orono, Maine 04473 for Fisheries Associate Editor Kathryn Dennis National Marine Fisheries Service Office of Science and Technology Economics and Social Analysis Division 1845 Wasp Blvd., Bldg. 178 Honolulu, Hawaii 96818 Managing Editor Shelley Arenas National Marine Fisheries Service Scientific Publications Office 7600 Sand Point Way NE Seattle, Washington 98115 Editorial Committee Ann C. Matarese National Marine Fisheries Service James W. Orr National Marine Fisheries Service The NOAA Professional Paper NMFS (ISSN 1931-4590) series is pub- lished by the Scientific Publications Of- *Bruce Mundy (PIFSC) was Scientific Editor during the fice, National Marine Fisheries Service, scientific editing and preparation of this report. NOAA, 7600 Sand Point Way NE, Seattle, WA 98115. The Secretary of Commerce has The NOAA Professional Paper NMFS series carries peer-reviewed, lengthy original determined that the publication of research reports, taxonomic keys, species synopses, flora and fauna studies, and data- this series is necessary in the transac- intensive reports on investigations in fishery science, engineering, and economics. tion of the public business required by law of this Department.
    [Show full text]
  • Download Full Article in PDF Format
    Récent Brachiopoda from the océanographie expédition SEAMOUNT 2 to the north-eastern Atlantic in 1993 Alan LOGAN Centre for Coastal Studies and Aquaculture, University of New Brunswick, P.O. Box 5050, Saint John, N.B., E2L4L5 (Canada) [email protected] Logan A. 1998. — Recent Brachiopoda from the oceanographic expedition SEAMOUNT 2 to the north-eastern Atlantic in 1993. Zoosystema 20 (4) : 549-562. ABSTRACT Eight species of recent brachiopods belonging to the genera Neocrania, Dyscolia, Abyssothyris, Stenosarina, Eucalathis, Platidia, Phaneropora and Dallinahsve been identified from collections from the 1993 SEAMOUNT 2 expedition to Meteor, Hyeres, Irving-Cruiser, Plato, Atlantis, Tyro and Antialtair seamounts in the north-eastern Atlantic. The species misidentified by Jeffreys (1878) as Terebratula vitrea var. sphenoidea [non Philippi, 1844] is described as Stenosarina davidsoni n.sp. The affinities of the SEAMOUNT 2 brachiopods are with the Mauritanian biogeographic province. Diversity and number of stations yielding brachiopods increase from south to north in the cluster of six seamounts (Meteor-Tyro) south of the Azores. Brachiopod diversity for the seven seamounts as a whole is less than for the Canary Islands to the east. There is an as yet unexplained absence from the sea- KEY WORDS mounts of deeper water species belonging to such genera as Pelagodiscus, Brachk>pods, Hispanirhynchia, Terebratulina, Gryphus, Megerlia and Macandrevia, which SEAMOUNT 2 commonly occur around island archipelagos such as Madeira, the Canaries and north-eastern Atlantic. the Cape Verdes, as well as off the Iberian coast and the African mainland. • 1998 • 20(4) 549 Logan A. RÉSUMÉ Brachiopodes actuels récoltés lors de l'expédition océanographique SEA­ MOUNT 2 dans l'océan Atlantique Nord-Est en 1993.
    [Show full text]
  • New Brachiopods from the Southern Hemisphere and Cryptopora from Oregon (Recent)
    New Brachiopods from the Southern Hemisphere and Cryptopora from Oregon (Recent) G. ARTHUR COOPER CONTRIBUTIONS TO PALEOBIOLOGY • NUMBER 41 SERIES PUBLICATIONS OF THE SMITHSONIAN INSTITUTION Emphasis upon publication as a means of "diffusing knowledge" was expressed by the first Secretary of the Smithsonian. In his formal plan for the Institution, Joseph Henry outlined 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 theme of basic research has been adhered to through the years by thousands of titles issued in series publications under the Smithsonian imprint, commencing with Smithsonian Contributions to Knowledge in 1848 and continuing with the following active series: Smithsonian Contributions to Anthropology Smithsonian Contributions to Astrophysics Smithsonian Contributions to Botany Smithsonian Contributions to the Earth Sciences Smithsonian Contributions to the Marine Sciences Smithsonian Contributions to Paleobiology Smithsonian Contributions to Zoology Smithsonian Studies in Air and Space Smithsonian Studies in History and Technology In these series, the Institution publishes small papers and full-scale monographs that report the research and collections of its various museums and bureaux or of professional colleagues in the world of science and scholarship. The publications are distributed by mailing lists to libraries, universities, and similar institutions throughout the world. Papers or monographs submitted for series publication are received by the Smithsonian Institution Press, subject to its own review for format and style, only through departments of the various Smithsonian museums or bureaux, where the manuscripts are given substantive review.
    [Show full text]
  • TREATISE on INVERTEBRATE Paleontology BRACHIOPODA
    TREA T ISE ON INVER T EBRA T E PALEON T OLOGY Part H BRACHIO P ODA Revised Volume 6: Supplement ALWYN WILLIA ms , C. H. C. BRUNTON , and S. J. CARL S ON with FERNANDO ALVAREZ , A. D. AN S ELL , P. G. BA K ER , M. G. BA ss ETT , R. B. BLOD G ETT , A. J. BOUCOT , J. L. CARTER , L. R. M. COC ks , B. L. CO H EN , PAUL CO pp ER , G. B. CURRY , MA gg IE CU S AC K , A. S. DA G Y S , C. C. EM I G , A. B. GAWT H RO P , RÉ M Y GOURVENNEC , R. E. GRANT , D. A. T. HAR P ER , L. E. HOL M ER , HOU HON G -FEI , M. A. JA M E S , JIN YU-G AN , J. G. JO H N S ON , J. R. LAURIE , STANI S LAV LAZAREV , D. E. LEE , CAR S TEN LÜTER , SARA H MAC K AY , D. I. MAC KINNON , M. O. MANCEÑIDO , MIC H AL MER G L , E. F. OWEN , L. S. PEC K , L. E. PO P OV , P. R. RAC H E B OEUF , M. C. RH ODE S , J. R. RIC H ARD S ON , RON G JIA -YU , MADI S RU B EL , N. M. SAVA G E , T. N. SM IRNOVA , SUN DON G -LI , DERE K WALTON , BRUCE WARDLAW , and A. D. WRI gh T Prepared under Sponsorship of The Geological Society of America, Inc. The Paleontological Society SEPM (Society for Sedimentary Geology) The Palaeontographical Society The Palaeontological Association RAY M OND C.
    [Show full text]