A New View of the Mass Extinctions and the Worldwide Floods
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CEPHALOPODS 688 Cephalopods
click for previous page CEPHALOPODS 688 Cephalopods Introduction and GeneralINTRODUCTION Remarks AND GENERAL REMARKS by M.C. Dunning, M.D. Norman, and A.L. Reid iving cephalopods include nautiluses, bobtail and bottle squids, pygmy cuttlefishes, cuttlefishes, Lsquids, and octopuses. While they may not be as diverse a group as other molluscs or as the bony fishes in terms of number of species (about 600 cephalopod species described worldwide), they are very abundant and some reach large sizes. Hence they are of considerable ecological and commercial fisheries importance globally and in the Western Central Pacific. Remarks on MajorREMARKS Groups of CommercialON MAJOR Importance GROUPS OF COMMERCIAL IMPORTANCE Nautiluses (Family Nautilidae) Nautiluses are the only living cephalopods with an external shell throughout their life cycle. This shell is divided into chambers by a large number of septae and provides buoyancy to the animal. The animal is housed in the newest chamber. A muscular hood on the dorsal side helps close the aperture when the animal is withdrawn into the shell. Nautiluses have primitive eyes filled with seawater and without lenses. They have arms that are whip-like tentacles arranged in a double crown surrounding the mouth. Although they have no suckers on these arms, mucus associated with them is adherent. Nautiluses are restricted to deeper continental shelf and slope waters of the Indo-West Pacific and are caught by artisanal fishers using baited traps set on the bottom. The flesh is used for food and the shell for the souvenir trade. Specimens are also caught for live export for use in home aquaria and for research purposes. -
Aequipecten Opercularis (Linnaeus, 1758)
Aequipecten opercularis (Linnaeus, 1758) AphiaID: 140687 VIEIRA Animalia (Reino) > Mollusca (Filo) > Bivalvia (Classe) > Autobranchia (Subclasse) > Pteriomorphia (Infraclasse) > Pectinida (Ordem) > Pectinoidea (Superfamilia) > Pectinidae (Familia) © Vasco Ferreira Mouna Antit, via WoRMS v_s_ - iNaturalist.org Facilmente confundível com: 1 Pecten maximus Vieira Principais ameaças Sinónimos Aequipecten heliacus (Dall, 1925) Chlamys bruei coeni Nordsieck, 1969 Chlamys bruei pulchricostata Nordsieck, 1969 Chlamys opercularis (Linnaeus, 1758) Ostrea dubia Gmelin, 1791 Ostrea elegans Gmelin, 1791 Ostrea florida Gmelin, 1791 Ostrea opercularis Linnaeus, 1758 Ostrea plana Gmelin, 1791 Ostrea radiata Gmelin, 1791 Ostrea regia Gmelin, 1791 Ostrea versicolor Gmelin, 1791 Pecten (Chlamys) vescoi Bavay, 1903 Pecten audouinii Payraudeau, 1826 Pecten cretatus Reeve, 1853 Pecten daucus Reeve, 1853 Pecten heliacus Dall, 1925 Pecten lineatus da Costa, 1778 Pecten lineatus var. albida Locard, 1888 Pecten lineatus var. bicolor Locard, 1888 Pecten opercularis (Linnaeus, 1758) 2 Pecten opercularis var. albopurpurascens Lamarck, 1819 Pecten opercularis var. albovariegata Clement, 1875 Pecten opercularis var. aspera Bucquoy, Dautzenberg & Dollfus, 1889 Pecten opercularis var. concolor Bucquoy, Dautzenberg & Dollfus, 1889 Pecten opercularis var. depressa Locard, 1888 Pecten opercularis var. elongata Jeffreys, 1864 Pecten opercularis var. luteus Lamarck, 1819 Pecten pictus da Costa, 1778 Pecten subrufus Pennant, 1777 Pecten vescoi Bavay, 1903 Referências basis of record Gofas, S.; Le Renard, J.; Bouchet, P. (2001). Mollusca. in: Costello, M.J. et al. (eds), European Register of Marine Species: a check-list of the marine species in Europe and a bibliography of guides to their identification. Patrimoines Naturels. 50: 180-213. [details] additional source Ardovini, R.; Cossignani, T. (2004). West African seashells (including Azores, Madeira and Canary Is.) = Conchiglie dell’Africa Occidentale (incluse Azzorre, Madeira e Canarie). -
Nautiloid Shell Morphology
MEMOIR 13 Nautiloid Shell Morphology By ROUSSEAU H. FLOWER STATEBUREAUOFMINESANDMINERALRESOURCES NEWMEXICOINSTITUTEOFMININGANDTECHNOLOGY CAMPUSSTATION SOCORRO, NEWMEXICO MEMOIR 13 Nautiloid Shell Morphology By ROUSSEAU H. FLOIVER 1964 STATEBUREAUOFMINESANDMINERALRESOURCES NEWMEXICOINSTITUTEOFMININGANDTECHNOLOGY CAMPUSSTATION SOCORRO, NEWMEXICO NEW MEXICO INSTITUTE OF MINING & TECHNOLOGY E. J. Workman, President STATE BUREAU OF MINES AND MINERAL RESOURCES Alvin J. Thompson, Director THE REGENTS MEMBERS EXOFFICIO THEHONORABLEJACKM.CAMPBELL ................................ Governor of New Mexico LEONARDDELAY() ................................................... Superintendent of Public Instruction APPOINTEDMEMBERS WILLIAM G. ABBOTT ................................ ................................ ............................... Hobbs EUGENE L. COULSON, M.D ................................................................. Socorro THOMASM.CRAMER ................................ ................................ ................... Carlsbad EVA M. LARRAZOLO (Mrs. Paul F.) ................................................. Albuquerque RICHARDM.ZIMMERLY ................................ ................................ ....... Socorro Published February 1 o, 1964 For Sale by the New Mexico Bureau of Mines & Mineral Resources Campus Station, Socorro, N. Mex.—Price $2.50 Contents Page ABSTRACT ....................................................................................................................................................... 1 INTRODUCTION -
Organic Carbon Isotope Chemostratigraphy of Late Jurassic Early Cretaceous Arctic Canada
University of Plymouth PEARL https://pearl.plymouth.ac.uk Faculty of Science and Engineering School of Geography, Earth and Environmental Sciences Finding the VOICE: organic carbon isotope chemostratigraphy of Late Jurassic Early Cretaceous Arctic Canada Galloway, JM http://hdl.handle.net/10026.1/15324 10.1017/s0016756819001316 Geological Magazine Cambridge University Press (CUP) All content in PEARL is protected by copyright law. Author manuscripts are made available in accordance with publisher policies. Please cite only the published version using the details provided on the item record or document. In the absence of an open licence (e.g. Creative Commons), permissions for further reuse of content should be sought from the publisher or author. Proof Delivery Form Geological Magazine Date of delivery: Journal and vol/article ref: geo 1900131 Number of pages (not including this page): 15 This proof is sent to you on behalf of Cambridge University Press. Please check the proofs carefully. Make any corrections necessary on a hardcopy and answer queries on each page of the proofs Please return the marked proof within 2 days of receipt to: [email protected] Authors are strongly advised to read these proofs thoroughly because any errors missed may appear in the final published paper. This will be your ONLY chance to correct your proof. Once published, either online or in print, no further changes can be made. To avoid delay from overseas, please send the proof by airmail or courier. If you have no corrections to make, please email [email protected] to save having to return your paper proof. If corrections are light, you can also send them by email, quoting both page and line number. -
Bivalvia, Late Jurassic) from South America
Author's personal copy Pala¨ontol Z DOI 10.1007/s12542-016-0310-z RESEARCH PAPER Huncalotis, an enigmatic new pectinoid genus (Bivalvia, Late Jurassic) from South America 1 2 Susana E. Damborenea • He´ctor A. Leanza Received: 29 September 2015 / Accepted: 16 March 2016 Ó Pala¨ontologische Gesellschaft 2016 Abstract The extensive outcrops of the Late Jurassic– orientated at right angles to the shell margins. A few speci- Early Cretaceous Vaca Muerta Formation black shales and mens were found on the outside of large calcareous con- marls in the Neuque´n Basin have yielded very few bivalves, cretions within black shales; these are often articulated, and these are not well known. The material described here complete shells, which preserve the original convexity of the was collected in central Neuque´n, from late Tithonian cal- valves. In some cases these articulated shells seem to be careous levels within the black shales, between beds with associated with large ammonite shells, suggesting an epi- Substeueroceras sp. and with Argentiniceras noduliferum byssate (possibly also pseudoplanktonic) lifestyle. (Steuer). The material is referred to the new genus Huncalotis and to the new species H. millaini. The strongly Keywords Late Tithonian Á Neuque´n Basin Á Vaca inequivalve shells, the ligamental area with a triangular Muerta Formation Á Argentina Á Peru Á Bivalvia Á slightly prosocline resilifer, the right valve with ctenolium Pectinoidea Á Pectinidae and a very deep byssal notch, and the lack of radial orna- mentation make the shell of this new genus strikingly similar Kurzfassung Die reichlich zutage tretenden Schwarz- to the Triassic pectinid Pleuronectites. -
The Shell Matrix of the European Thorny Oyster, Spondylus Gaederopus: Microstructural and Molecular Characterization
The shell matrix of the european thorny oyster, Spondylus gaederopus: microstructural and molecular characterization. Jorune Sakalauskaite, Laurent Plasseraud, Jérôme Thomas, Marie Alberic, Mathieu Thoury, Jonathan Perrin, Frédéric Jamme, Cédric Broussard, Beatrice Demarchi, Frédéric Marin To cite this version: Jorune Sakalauskaite, Laurent Plasseraud, Jérôme Thomas, Marie Alberic, Mathieu Thoury, et al.. The shell matrix of the european thorny oyster, Spondylus gaederopus: microstructural and molecular characterization.. Journal of Structural Biology, Elsevier, 2020, 211 (1), pp.107497. 10.1016/j.jsb.2020.107497. hal-02906399 HAL Id: hal-02906399 https://hal.archives-ouvertes.fr/hal-02906399 Submitted on 17 Nov 2020 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. The shell matrix of the European thorny oyster, Spondylus gaederopus: microstructural and molecular characterization List of authors: Jorune Sakalauskaite1,2, Laurent Plasseraud3, Jérôme Thomas2, Marie Albéric4, Mathieu Thoury5, Jonathan Perrin6, Frédéric Jamme6, Cédric Broussard7, Beatrice Demarchi1, Frédéric Marin2 Affiliations 1. Department of Life Sciences and Systems Biology, University of Turin, Via Accademia Albertina 13, 10123 Turin, Italy; 2. Biogeosciences, UMR CNRS 6282, University of Burgundy-Franche-Comté, 6 Boulevard Gabriel, 21000 Dijon, France. 3. Institute of Molecular Chemistry, ICMUB UMR CNRS 6302, University of Burgundy- Franche-Comté, 9 Avenue Alain Savary, 21000 Dijon, France. -
06 Pavia.Pmd
Bollettino della Società Paleontologica Italiana, 45 (2-3), 2006, 217-226. Modena, 15 gennaio 2007217 Lissoceras monachum (Gemmellaro), a ghost Ammonitida of the Tethyan Bathonian Giulio PAVIA G. Pavia, Dipartimento di Scienze della Terra, via Valperga Caluso 35, I-10124 Torino (Italy); [email protected] KEY-WORDS - Systematics, Ammonitida, Lissoceras, Bathonian, Tethys. ABSTRACT - L. monachum has been frequently recorded in the Upper Bajocian and Lower Bathonian, but references in literature differ in morphological details as they are based on a juvenile and poorly-preserved holotype. In addition, the type of L. monachum comes from a bed affected by taphonomical condensation mixing fossils from Early and Middle Bathonian times, i.e. the biochronological meaning of Gemmellaro’s taxon cannot be specified with biostratigraphic criteria from the type-locality. These references are here revised and refused on the basis of two topotypes recently sampled at Monte Erice in western Sicily, which allow a precise morphological definition of L. monachum by means of architectural and sutural characteristics. The only acceptable biostratigraphic datum comes from a Lower Bathonian specimen from southern France. The differences from L. ferrifex, L. magnum, and L. ventriplanum are discussed. Finally, the suture-line of topotype PU111502 of L. monachum and those specimens from the Upper Bajocian of the Venetian Alps, here named L. aff. monachum, support the phyletic relationships between L. ferrifex and L. magnum through transitional forms of L. monachum aged for the Tethyan Early Bathonian. RIASSUNTO - [Lissoceras monachum (Gemmellaro), un Ammonitida fantasma del Batoniano Tetideo] - L’ammonite Lissoceras monachum, della famiglia medio- e tardo-giurassica Lissoceratidae, risulta ripetutamente citata nella letteratura sistematica relativa al Baiociano superiore e al Batoniano inferiore. -
Upon the Systematics of the Mesozoic Ammonitida
bodoA0)30e?f% 80060060660)6 od6<$03f)0b 80V)8oO, 160,^1, 1999 BULLETIN OF THE GEORGIAN ACADEMY OF SCIENCES,' 160, J* 1, 1999 PALEONTOLOGY I.Kvantaliani, Corr. Member of the Academy M.Topchishvili, T.Lominadze, M.Sharikadze Upon the Systematics of the Mesozoic Ammonitida Presented January 25, 1999 ABSTRACT. Systematics of the ammonoids highest taxa is based on the septa! line onto-phylogcny and the indexing of septal line elements isfounded on the homol ogy. Basing on the septal line development alongside with already known suborders (Ammonitina, Pcrisphinctina (emend.), Haploccratina, Ancyloccratina) wc have stated two new suborders Olcostcphanina and Cardioccratina. Key words: systematics. homology. Ammonitida. Systematics and phytogeny of the highest taxa of the Jurassic-Cretaceous Ammonitida are described in a number of works f 1-9]. Analysis of (he ontogenesis of septal lines (and some other signs) allowed N.Bcsnosov and 1. Michailova |2.3| to establish four suborders within the order of Ammonitida - Ammonitina Hyatt. 1889: Haploceratina Bcsnosov ct Michailova. 1983: Ancyloccratina Wiedmann. 1966 and Pcrisphinctina Bcsnosov cl Michailova. 1983, A. new suborder of Pcrisphinctina J3J. identified by N. Bcsnosov and I. Michailova in 1983. and phylogenetically closely related to it systematics of taxons arc of special interest. In turn, the suborder of Pcrisphinctina comprises four supcrfamilics (33 families): Stephanoceratoidea Ncumayr. 1875: Pcrisphinctoidca Stcinmann. 1890: Desmoceratoidca Zittcl. 1895 and Hoplitoidca H. Douville, 1890 [3j. Within the super- family of Perisphinctoidea s. lato the family of Olcostephanidae Pavlov. 1892. was previ ously mentioned. Earlier, on the basis of morphogenctic study of shells of some represen tatives of various families of Pcrisphinctidac |4-6}. -
Appendix I Lunar and Martian Nomenclature
APPENDIX I LUNAR AND MARTIAN NOMENCLATURE LUNAR AND MARTIAN NOMENCLATURE A large number of names of craters and other features on the Moon and Mars, were accepted by the IAU General Assemblies X (Moscow, 1958), XI (Berkeley, 1961), XII (Hamburg, 1964), XIV (Brighton, 1970), and XV (Sydney, 1973). The names were suggested by the appropriate IAU Commissions (16 and 17). In particular the Lunar names accepted at the XIVth and XVth General Assemblies were recommended by the 'Working Group on Lunar Nomenclature' under the Chairmanship of Dr D. H. Menzel. The Martian names were suggested by the 'Working Group on Martian Nomenclature' under the Chairmanship of Dr G. de Vaucouleurs. At the XVth General Assembly a new 'Working Group on Planetary System Nomenclature' was formed (Chairman: Dr P. M. Millman) comprising various Task Groups, one for each particular subject. For further references see: [AU Trans. X, 259-263, 1960; XIB, 236-238, 1962; Xlffi, 203-204, 1966; xnffi, 99-105, 1968; XIVB, 63, 129, 139, 1971; Space Sci. Rev. 12, 136-186, 1971. Because at the recent General Assemblies some small changes, or corrections, were made, the complete list of Lunar and Martian Topographic Features is published here. Table 1 Lunar Craters Abbe 58S,174E Balboa 19N,83W Abbot 6N,55E Baldet 54S, 151W Abel 34S,85E Balmer 20S,70E Abul Wafa 2N,ll7E Banachiewicz 5N,80E Adams 32S,69E Banting 26N,16E Aitken 17S,173E Barbier 248, 158E AI-Biruni 18N,93E Barnard 30S,86E Alden 24S, lllE Barringer 29S,151W Aldrin I.4N,22.1E Bartels 24N,90W Alekhin 68S,131W Becquerei -
Colour Patterns in Early Devonian Cephalopods from the Barrandian Area: Taphonomy and Taxonomy
Colour patterns in Early Devonian cephalopods from the Barrandian Area: Taphonomy and taxonomy VOJTĚCH TUREK Turek, V. 2009. Colour patterns in Early Devonian cephalopods from the Barrandian Area: Taphonomy and taxonomy. Acta Palaeontologica Polonica 54 (3): 491–502. DOI: 10.4202/app.2007.0064. Five cephalopod specimens from the Lower Devonian of Bohemia (Czech Republic) preserve colour patterns. They in− clude two taxonomically undeterminable orthoceratoids and three oncocerid nautiloids assigned to the genus Ptenoceras. The two fragments of orthocone cephalopods from the lowest Devonian strata (Lochkovian, Monograptus uniformis Zone) display colour patterns unusual in orthoceratoids. They have irregular undulating and zigzag strips that are pre− served on counterparts of adapertural regions of specimens flattened in shale, despite their original aragonitic shell having been completely dissolved. These are probably the result of the proteinous pigment inside the shell wall, being substituted during diagenesis by secondary minerals leaving only an altered trace of the original shell. Orthoceratoids from sediments unsuitable for preservation of this feature discussed here thus demonstrate an exceptional case of preservation of colour patterns, not only within Devonian cephalopods but also within other Devonian molluscs. Three specimens of Ptenoceras that preserve colour patterns come from younger Lower Devonian strata. Oblique spiral adaperturally bifurcating bands are preserved in P. alatum from the Pragian and zigzags in P. nudum from the Dalejan. Juvenile specimen of Ptenoceras? sp. from the Pragian exhibits highly undulating transversal bands—a pattern resembling colour markings in some Silu− rian oncocerids. Dark grey wavy lines observed on the superficially abraded adapical part of a phragmocone of nautiloid Pseudorutoceras bolli and interpreted formerly to be colour markings are here reinterpreted as secondary pigmented growth lines. -
TREATISE ONLINE Number 48
TREATISE ONLINE Number 48 Part N, Revised, Volume 1, Chapter 31: Illustrated Glossary of the Bivalvia Joseph G. Carter, Peter J. Harries, Nikolaus Malchus, André F. Sartori, Laurie C. Anderson, Rüdiger Bieler, Arthur E. Bogan, Eugene V. Coan, John C. W. Cope, Simon M. Cragg, José R. García-March, Jørgen Hylleberg, Patricia Kelley, Karl Kleemann, Jiří Kříž, Christopher McRoberts, Paula M. Mikkelsen, John Pojeta, Jr., Peter W. Skelton, Ilya Tëmkin, Thomas Yancey, and Alexandra Zieritz 2012 Lawrence, Kansas, USA ISSN 2153-4012 (online) paleo.ku.edu/treatiseonline PART N, REVISED, VOLUME 1, CHAPTER 31: ILLUSTRATED GLOSSARY OF THE BIVALVIA JOSEPH G. CARTER,1 PETER J. HARRIES,2 NIKOLAUS MALCHUS,3 ANDRÉ F. SARTORI,4 LAURIE C. ANDERSON,5 RÜDIGER BIELER,6 ARTHUR E. BOGAN,7 EUGENE V. COAN,8 JOHN C. W. COPE,9 SIMON M. CRAgg,10 JOSÉ R. GARCÍA-MARCH,11 JØRGEN HYLLEBERG,12 PATRICIA KELLEY,13 KARL KLEEMAnn,14 JIřÍ KřÍž,15 CHRISTOPHER MCROBERTS,16 PAULA M. MIKKELSEN,17 JOHN POJETA, JR.,18 PETER W. SKELTON,19 ILYA TËMKIN,20 THOMAS YAncEY,21 and ALEXANDRA ZIERITZ22 [1University of North Carolina, Chapel Hill, USA, [email protected]; 2University of South Florida, Tampa, USA, [email protected], [email protected]; 3Institut Català de Paleontologia (ICP), Catalunya, Spain, [email protected], [email protected]; 4Field Museum of Natural History, Chicago, USA, [email protected]; 5South Dakota School of Mines and Technology, Rapid City, [email protected]; 6Field Museum of Natural History, Chicago, USA, [email protected]; 7North -
Minute Silurian Oncocerid Nautiloids with Unusual Colour Patterns
Minute Silurian oncocerid nautiloids with unusual colour patterns ŠTĚPÁN MANDA and VOJTĚCH TUREK Manda, Š. and Turek, V. 2009. Minute Silurian oncocerid nautiloids with unusual colour patterns. Acta Palaeontologica Polonica 54 (3): 503–512. DOI: 10.4202/app.2008.0062. A minute Silurian oncocerid Cyrtoceras pollux, from the Prague Basin is assigned here to the genus Pomerantsoceras.The only so far known species of this genus comes from the Upper Ordovician (Hirnantian) of Estonia. Pomerantsoceras thus represents, except for un−revised poorly understood taxa, the single known oncocerid genus surviving the end−Ordovician extinction events. Cyrtoceras pollux is unusual among the Silurian nautiloids because of its small shell. Colour pattern char− acterised by a few longitudinal bands on the entire circumference of the shell is here reported in oncocerids. Longicone and only slightly curved small shells as in Pomerantsoceras are unusual among nautiloids and resemble straight shells of orthocerids and pseudorthocerids, in which the colour pattern consists of straight colour bands. Consequently the shell shape as well as the colour pattern should be regarded as adaptive convergence with orthocerids and pseudorthocerids. It supports the hypothesis that colour pattern functioned as camouflage and its evolution was under adaptive control. In addition, several types of the shell malformations including anomalous growth of septa, shell wall and pits on an internal mould are described. Key words: Cephalopoda, Nautiloidea, taxonomy, colour pattern, shell size, shell malformation, Silurian. Štěpán Manda [[email protected]], Odbor regionální geologie sedimentárních formací, Česká geologická služba, PO Box 85, Praha 011, 118 21, Česká republika; Vojtěch Turek [[email protected]], Národní muzeum, Přírodovědecké muzeum, paleontologické oddělení, Václavské náměstí 68, 115 79 Praha 1, Czech Republic.