Functional Diversity of Regional Marine
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The Jurassic Pleurotomarioidean Gastropod Laevitomaria and Its Palaeobiogeographical History
The Jurassic pleurotomarioidean gastropod Laevitomaria and its palaeobiogeographical history ROBERTO GATTO, STEFANO MONARI, JÁNOS SZABÓ, and MARIA ALESSANDRA CONTI Gatto, R., Monari, S., Szabó, J., and Conti, M.A. 2015. The Jurassic pleurotomarioidean gastropod Laevitomaria and its palaeobiogeographical history. Acta Palaeontologica Polonica 60 (1): 217–233. The genus Laevitomaria is reviewed and its palaeobiogeographical history is reconstructed based on the re-examination of its type species L. problematica, the study of material stored at the National Natural History Museum of Luxembourg, and an extensive review of the literature. The systematic study allows ascribing to Laevitomaria a number of Jurassic species from the western European region formerly included in other pleurotomariid genera. The following new combi- nations are proposed: Laevitomaria allionta, L. amyntas, L. angulba, L. asurai, L. daityai, L. fasciata, L. gyroplata, L. isarensis, L. joannis, L. repeliniana, L. stoddarti, L. subplatyspira, and L. zonata. The genus, which was once considered as endemic of the central part of the western Tethys, shows an evolutionary and palaeogeographical history consider- ably more complex than previously assumed. It first appeared in the Late Sinemurian in the northern belt of the central western Tethys involved in the Neotethyan rifting, where it experienced a first radiation followed by an abrupt decline of diversity in the Toarcian. Species diversity increased again during Toarcian–Aalenian times in the southernmost part of western European shelf and a major radiation occurred during the Middle Aalenian to Early Bajocian in the northern Paris Basin and southern England. After a latest Bajocian collapse of diversity, Laevitomaria disappeared from both the central part of western Tethys and the European shelf. -
Triassic Gastropods of the Southern Qinling Mountains, China
SMITHSONIAN CONTRIBUTIONS TO PALEOBIOLOGY • NUMBER 92 Triassic Gastropods of the Southern Qinling Mountains, China Jinnan Tong and Douglas H. Erwin Smithsonian Institution Press Washington, D.C. 2001 ABSTRACT Tong, Jinnan, and Douglas H. Erwin. Triassic Gastropods of the Southern Qinling Mountains, China. Smithsonian Contributions to Paleobiology, number 92,47 pages, 11 figures, 6 plates, 5 tables, 2001. Forty-eight species in 27 genera of gastropods, including 14 new species and one new genus, are described from early- to middle-Triassic (Scythian- to Ladinian-aged) rocks from the southern Qinling Mountains of Gansu and Sichuan provinces, China. This report expands the knowledge of the biogeographic distribution of gastropods during the recovery from the end-Permian mass extinction. The new taxa include Tongweispira sichuanensis, new genus and new species, and the following new species: Ananias guojiashanensis, Worthenia extendia, Gosseletinal dangchangensis, Zygites laevigatus, Trochotoma {Discotoma) gansuensis, Cheilotomona acutocarinata, Naticopsis (Dicosmos) compressus, Naticopsis (Dicosmos) sichuanensis, Naticopsis? ribletella, Neritopsis planoplicatus, Platychilina sinen sis, Platychilina obliqua, and Omphaloptycha gansuensis. OFFICIAL PUBLICATION DATE is handstamped in a limited number of initial copies and is recorded in the Institution's annual report, Annals of the Smithsonian Institution. SERIES COVER DESIGN: The trilobite Phacops rana Green. Library of Congress Cataloging-in-Publication Data Tong, Jinnan. Triassic gastropods -
Persistent and Widespread Occurrence of Bioactive Quinone Pigments During Post-Paleozoic Crinoid Diversification
Persistent and widespread occurrence of bioactive quinone pigments during post-Paleozoic crinoid diversification Klaus Wolkenstein1 Department of Geobiology, Geoscience Centre, University of Göttingen, 37077 Göttingen, Germany Edited by Tomasz K. Baumiller, University of Michigan, Ann Arbor, MI, and accepted by the Editorial Board January 20, 2015 (received for review September 9, 2014) Secondary metabolites often play an important role in the adapta- (14, 15), closely related to the gymnochromes, suggesting that the tion of organisms to their environment. However, little is known fossil pigments may be only slightly changed during diagenesis. about the secondary metabolites of ancient organisms and their Although violet coloration has been occasionally observed in fossil evolutionary history. Chemical analysis of exceptionally well-pre- crinoids (e.g., refs. 16 and 17), until now, only very few chemical served colored fossil crinoids and modern crinoids from the deep sea proofs of quinone pigments have been found for crinoids other than suggests that bioactive polycyclic quinones related to hypericin Liliocrinus (14, 15, 18, 19). Recent measurements suggested the were, and still are, globally widespread in post-Paleozoic crinoids. presence of quinone-like compounds in Paleozoic (Mississippian) The discovery of hypericinoid pigments both in fossil and in present- crinoids (20), but the identity of these compounds has been ques- day representatives of the order Isocrinida indicates that the pig- tioned on methodological grounds (21). ments remained almost unchanged since the Mesozoic, also suggest- To investigate the general occurrence of polycyclic quinone ing that the original color of hypericinoid-containing ancient crinoids pigments in the Crinoidea, the coloration of numerous fossil may have been analogous to that of their modern relatives. -
The Slit Bearing Nacreous Archaeogastropoda of the Triassic Tropical Reefs in the St
Berliner paläobiologische Abhandlungen 10 5-47 Berlin 2009-11-11 The slit bearing nacreous Archaeogastropoda of the Triassic tropical reefs in the St. Cassian Formation with evaluation of the taxonomic value of the selenizone Klaus Bandel Abstract: Many Archaeogastropoda with nacreous shell from St. Cassian Formation have a slit in the outer lip that gives rise to a selenizone. The primary objective of this study is to analyze family level characters, provide a revision of some generic classifications and compare with species living today. Members of twelve families are recognized with the Lancedellidae n. fam., Rhaphistomellidae n. fam., Pseudowortheniellidae n. fam., Pseudoschizogoniidae n. fam., Wortheniellidae n. fam. newly defined. While the organization of the aperture and the shell structure is similar to that of the living Pleurotomariidae, morphology of the early ontogenetic shell and size and shape of the adult shell distinguish the Late Triassic slit bearing Archae- gastropoda from these. In the reef environment of the tropical Tethys Ocean such Archaeogastropoda were much more diverse than modern representatives of that group from the tropical Indo-Pacific Ocean. Here Haliotis, Seguenzia and Fossarina represent living nacreous gastropods with slit and are compared to the fossil species. All three have distinct shape and arrangement of the teeth in their radula that is not related to that of the Pleurotomariidae and also differs among each other. The family Fossarinidae n. fam. and the new genera Pseudowortheniella and Rinaldoella are defined, and a new species Campbellospira missouriensis is described. Zusammenfassung: In der St. Cassian-Formation kommen zahlreiche Arten der Archaeogastropoda vor, die eine perlmutterige Schale mit Schlitz in der Außenlippe haben, welcher zu einem Schlitzband führt. -
Monograph38.Pdf
The Lower Triassic System in the Abrek Bay area, South Primorye, Russia Edited by Yasunari Shigeta Yuri D. Zakharov Haruyoshi Maeda Alexander M. Popov National Museum of Nature and Science Tokyo, March 2009 v Contents Contributors .................................................................vi Abstract ....................................................................vii Introduction (Y. Shigeta, Y. D. Zakharov, H. Maeda, A. M. Popov, K. Yokoyama and H. Igo) ...1 Paleogeographical and geological setting (Y. Shigeta, H. Maeda, K. Yokoyama and Y. D. Zakharov) ....................3 Stratigraphy (H. Maeda, Y. Shigeta, Y. Tsujino and T. Kumagae) .........................4 Biostratigraphy Ammonoid succession (Y. Shigeta, H. Maeda and Y. D. Zakharov) ..................24 Conodont succession (H. Igo) ...............................................27 Correlation (Y. Shigeta and H. Igo) ...........................................29 Age distribution of detrital monazites in the sandstone (K. Yokoyama, Y. Shigeta and Y. Tsutsumi) ..............................30 Discussion Age data of monazites (K. Yokoyama, Y. Shigeta and Y. Tsutsumi) ..................34 The position of the Abrek Bay section in the “Ussuri Basin” (Y. Shigeta and H. Maeda) ...36 Ammonoid mode of occurrence (H. Maeda and Y. Shigeta) ........................36 Aspects of ammonoid faunas (Y. Shigeta) ......................................38 Holocrinus species from the early Smithian (T. Oji) ..............................39 Recovery of nautiloids in the Early Triassic (Y. Shigeta) -
Contributions in BIOLOGY and GEOLOGY
MILWAUKEE PUBLIC MUSEUM Contributions In BIOLOGY and GEOLOGY Number 51 November 29, 1982 A Compendium of Fossil Marine Families J. John Sepkoski, Jr. MILWAUKEE PUBLIC MUSEUM Contributions in BIOLOGY and GEOLOGY Number 51 November 29, 1982 A COMPENDIUM OF FOSSIL MARINE FAMILIES J. JOHN SEPKOSKI, JR. Department of the Geophysical Sciences University of Chicago REVIEWERS FOR THIS PUBLICATION: Robert Gernant, University of Wisconsin-Milwaukee David M. Raup, Field Museum of Natural History Frederick R. Schram, San Diego Natural History Museum Peter M. Sheehan, Milwaukee Public Museum ISBN 0-893260-081-9 Milwaukee Public Museum Press Published by the Order of the Board of Trustees CONTENTS Abstract ---- ---------- -- - ----------------------- 2 Introduction -- --- -- ------ - - - ------- - ----------- - - - 2 Compendium ----------------------------- -- ------ 6 Protozoa ----- - ------- - - - -- -- - -------- - ------ - 6 Porifera------------- --- ---------------------- 9 Archaeocyatha -- - ------ - ------ - - -- ---------- - - - - 14 Coelenterata -- - -- --- -- - - -- - - - - -- - -- - -- - - -- -- - -- 17 Platyhelminthes - - -- - - - -- - - -- - -- - -- - -- -- --- - - - - - - 24 Rhynchocoela - ---- - - - - ---- --- ---- - - ----------- - 24 Priapulida ------ ---- - - - - -- - - -- - ------ - -- ------ 24 Nematoda - -- - --- --- -- - -- --- - -- --- ---- -- - - -- -- 24 Mollusca ------------- --- --------------- ------ 24 Sipunculida ---------- --- ------------ ---- -- --- - 46 Echiurida ------ - --- - - - - - --- --- - -- --- - -- - - --- -
Encrinus Liliiformis (Echinodermata: Crinoidea)
RESEARCH ARTICLE Computational Fluid Dynamics Analysis of the Fossil Crinoid Encrinus liliiformis (Echinodermata: Crinoidea) Janina F. Dynowski1,2, James H. Nebelsick2*, Adrian Klein3, Anita Roth-Nebelsick1 1 Staatliches Museum für Naturkunde Stuttgart, Stuttgart, Germany, 2 Fachbereich Geowissenschaften, Eberhard Karls Universität Tübingen, Tübingen, Germany, 3 Institut für Zoologie, Rheinische Friedrich- Wilhelms-Universität Bonn, Bonn, Germany * [email protected] a11111 Abstract Crinoids, members of the phylum Echinodermata, are passive suspension feeders and catch plankton without producing an active feeding current. Today, the stalked forms are known only from deep water habitats, where flow conditions are rather constant and feeding OPEN ACCESS velocities relatively low. For feeding, they form a characteristic parabolic filtration fan with their arms recurved backwards into the current. The fossil record, in contrast, provides a Citation: Dynowski JF, Nebelsick JH, Klein A, Roth- Nebelsick A (2016) Computational Fluid Dynamics large number of stalked crinoids that lived in shallow water settings, with more rapidly Analysis of the Fossil Crinoid Encrinus liliiformis changing flow velocities and directions compared to the deep sea habitat of extant crinoids. (Echinodermata: Crinoidea). PLoS ONE 11(5): In addition, some of the fossil representatives were possibly not as flexible as today’s cri- e0156408. doi:10.1371/journal.pone.0156408 noids and for those forms alternative feeding positions were assumed. One of these fossil Editor: Stuart Humphries, University of Lincoln, crinoids is Encrinus liliiformis, which lived during the middle Triassic Muschelkalk in Central UNITED KINGDOM Europe. The presented project investigates different feeding postures using Computational Received: August 24, 2015 Fluid Dynamics to analyze flow patterns forming around the crown of E. -
Isocrinid Crinoids from the Late Cenozoic of Jamaica
A tlantic G eology 195 Isocrinid crinoids from the late Cenozoic of Jamaica Stephen K. Donovan Department of Geology, University of the West Indies, Mona, Kingston 7, Jamaica Date Received April 8, 1994 Date A ccepted A ugust 26, 1994 Eight species of isocrinines have been documented from the Lower Cretaceous to Pleistocene of Jamaica. New finds include a second specimen of a Miocene species from central north Jamaica, previously regarded as Diplocrinus sp. but reclassified as Teliocrinus? sp. herein. Extant Teliocrinus is limited to the Indian Ocean, although Miocene specimens have been recorded from Japan, indicating a wider distribution during the Neogene. One locality in the early Pleistocene Manchioneal Formation of eastern Jamaica has yielded three species of isocrinine, Cenocrirtus asterius (Linne), Diplocrinus maclearanus (Thomson) and Neocrinus decorus Thomson. These occur in association with the bourgueticrinine Democrinus sp. or Monachocrinus sp. These taxa are all extant and suggest a minimum depositional depth for the Manchioneal Formation at this locality of about 180 m. This early Pleistocene fauna represents the most diverse assemblage of fossil crinoids docu mented from the Antillean region. Huit especes d’isocrinines de la periode du Cretace inferieur au Pleistocene de la Jamai'que ont ete documentees. Les nouvelles decouvertes comprennent un deuxieme specimen d’une espece du Miocene du nord central de la Jamai'que, auparavant consideree comme l’espece Diplocrinus, mais reclassifiee en tant que Teliocrinus? aux presentes. Le Teliocrinus existant est limite a l’ocean Indien, meme si on a releve des specimens du Miocene au Japon, ce qui est revelateur d’une distribution plus repandue au cours du Neogene. -
Population Characteristics of the Limpet Patella Caerulea (Linnaeus, 1758) in Eastern Mediterranean (Central Greece)
water Article Population Characteristics of the Limpet Patella caerulea (Linnaeus, 1758) in Eastern Mediterranean (Central Greece) Dimitris Vafidis, Irini Drosou, Kostantina Dimitriou and Dimitris Klaoudatos * Department of Ichthyology and Aquatic Environment, School of Agriculture Sciences, University of Thessaly, 38446 Volos, Greece; dvafi[email protected] (D.V.); [email protected] (I.D.); [email protected] (K.D.) * Correspondence: [email protected] Received: 27 February 2020; Accepted: 19 April 2020; Published: 21 April 2020 Abstract: Limpets are pivotal for structuring and regulating the ecological balance of littoral communities and are widely collected for human consumption and as fishing bait. Limpets of the species Patella caerulea were collected between April 2016 and April 2017 from two sites, and two samplings per each site with varying degree of exposure to wave action and anthropogenic pressure, in Eastern Mediterranean (Pagasitikos Gulf, Central Greece). This study addresses a knowledge gap on population characteristics of P. caerulea populations in Eastern Mediterranean, assesses population structure, allometric relationships, and reproductive status. Morphometric characteristics exhibited spatio-temporal variation. Population density was significantly higher at the exposed site. Spatial relationship between members of the population exhibited clumped pattern of dispersion during spring. Broadcast spawning of the population occurred during summer. Seven dominant age groups were identified, with the dominant cohort in the third-year -
September 1997 Features Articles
September, 1997 Feature Articles Index (All items new this month) Micro Shells of Northern Australia by Patty Jansen. Using Abalone Radula to identify to species level by Daniel L. Geiger. “The Sanibel Kaleidoscope” by Whittkopf, Harlan E., 1997 Reviewed by Beatrice L. Burch Travel for Shell Collectors by Betty Jean Piech HMS Members attend COA Convention in Florida by George Cook Report on the July, 1997 COA Convention by Carole P. Marshall Report on the July, 1997 AMU/WSM joint meeting by Bea Burch Shellers in the News . Don Hemmes . W ayne Stevens. Mollusc Species Introduced in Hawaii . from paper by Vernon E. Brock in 1960. Micro Shells of Northern Australia Northern Australia Micro Shells by Patty Jansen* * E-mail [email protected] I created an internet site out of love for the microshell fauna of Australia. because so few people are interested in these beautiful little shells, because there is there is no popular literature available to identify them, and because very few people know any- thing about them. I am sharing part of my home page here for persons who may not have viewed it yet. You may desire to print it for your permanent use. My home page URL is http://www.internetnorth.com.au/filejest please visit as the site is con- stantly being expanded to include more micro shells. All images were scanned from my original line drawings or photographs. The shells are in my collection unless otherwise stated. The microshells of northern Australia are mostly unknown. Only a few articles have been published about them; and almost no microshells are mentioned in any of the popular books. -
The Nautilus
THE NAUTILUS Volume 120, Numberl May 30, 2006 ISSN 0028-1344 A quarterly devoted to malacology. EDITOR-IN-CHIEF Dr. Douglas S. Jones Dr. Angel Valdes Florida Museum of Natural History Department of Malacology Dr. Jose H. Leal University of Florida Natural Histoiy Museum The Bailey-Matthews Shell Museum Gainesville, FL 32611-2035 of Los Angeles County 3075 Sanibel-Captiva Road 900 Exposition Boulevard Sanibel, FL 33957 Dr. Harry G. Lee Los Angeles, CA 90007 MANAGING EDITOR 1801 Barrs Street, Suite 500 Dr. Geerat Vermeij Jacksonville, FL 32204 J. Linda Kramer Department of Geology Shell Museum The Bailey-Matthews Dr. Charles Lydeard University of California at Davis 3075 Sanibel-Captiva Road Biodiversity and Systematics Davis, CA 95616 Sanibel, FL 33957 Department of Biological Sciences Dr. G. Thomas Watters University of Alabama EDITOR EMERITUS Aquatic Ecology Laboratory Tuscaloosa, AL 35487 Dr. M. G. Harasewych 1314 Kinnear Road Department of Invertebrate Zoology Bruce A. Marshall Columbus, OH 43212-1194 National Museum of Museum of New Zealand Dr. John B. Wise Natural History Te Papa Tongarewa Department oi Biology Smithsonian Institution P.O. Box 467 College of Charleston Washington, DC 20560 Wellington, NEW ZEALAND Charleston, SC 29424 CONSULTING EDITORS Dr. James H. McLean SUBSCRIPTION INFORMATION Dr. Riidiger Bieler Department of Malacology Department of Invertebrates Natural History Museum The subscription rate per volume is Field Museum of of Los Angeles County US $43.00 for individuals, US $72.00 Natural History 900 Exposition Boulevard for institutions. Postage outside the Chicago, IL 60605 Los Angeles, CA 90007 United States is an additional US $5.00 for surface and US $15.00 for Dr. -
The Permian-Triassic Transition in Southern Armenia
IGCP 630: Permian and Triassic integrated Stratigraphy and Climatic, Environmental and Biotic Extremes THE PERMIAN-TRIASSIC TRANSITION IN SOUTHERN ARMENIA October 8th - 14th, 2017 5 th IGCP 630 International conference and field workshop, 8-14 October, 2017 Yerevan, Armenia Workshop schedule: October 8: Arrival in Yerevan, transfer to a hotel. October 9: Conference Day 1, at the Round Hall of Presidium of the Armenian National Academy of Sciences, Yerevan. October 10: Conference Day 2, at the Round Hall of Presidium of the Armenian National Academy of Sciences, Yerevan., and Visit of the Khor Virap monastery and the Matenadaran Scientific Research Institute of Ancient Manuscripts. October 11: Field Trip, Day 1, Yerevan to Ogbin (166 km by bus). Visit to the Ogbin outcrop section. Accommodation in the Hotel Amrots in the city of Vayk. October 12: Field Trip, Day 2, Vayk to Zangakatun, 50km. Visit to the Chanakhchi outcrop section. Return to Hotel Amrots. October 13: Field Trip, Day 3, Vayk to Vedi (86km). Visit to the Vedi outcrop sections and visit of the Noravank monastery. Return to Yerevan (67 km), Conference dinner in evening. October 14: Samples packing for expedition, departure of the participants in the afternoon or in the night. 2 5 th IGCP 630 International conference and field workshop, 8-14 October, 2017 Yerevan, Armenia CONTENTS Workshop schedule ......................................................................................................................... 2 Conference Programm ....................................................................................................................