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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 -
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 -
Middle Triassic Gastropods from the Besano Formation of Monte San Giorgio, Switzerland Vittorio Pieroni1 and Heinz Furrer2*
Pieroni and Furrer Swiss J Palaeontol (2020) 139:2 https://doi.org/10.1186/s13358-019-00201-8 Swiss Journal of Palaeontology RESEARCH ARTICLE Open Access Middle Triassic gastropods from the Besano Formation of Monte San Giorgio, Switzerland Vittorio Pieroni1 and Heinz Furrer2* Abstract For the frst time gastropods from the Besano Formation (Anisian/Ladinian boundary) are documented. The material was collected from three diferent outcrops at Monte San Giorgio (Southern Alps, Ticino, Switzerland). The taxa here described are Worthenia (Humiliworthenia)? af. microstriata, Frederikella cf. cancellata, ?Trachynerita sp., ?Omphalopty- cha sp. 1 and ?Omphaloptycha sp. 2. They represent the best preserved specimens of a larger collection and docu- ment the presence in this formation of the clades Vetigastropoda, Neritimorpha and Caenogastropoda that were widespread on the Alpine Triassic carbonate platforms. True benthic molluscs are very rarely documented in the Besano Formation, which is interpreted as intra-platform basin sediments deposited in usually anoxic condition. Small and juvenile gastropods could have been lived as pseudoplankton attached to foating algae or as free-swimming veliger planktotrophic larval stages. Accumulations of larval specimens suggest unfavorable living conditions with prevailing disturbance in the planktic realm or mass mortality events. However, larger gastropods more probably were washed in with sediments disturbed by slumping and turbidite currents along the basin edge or storm activity across the platform of the time equivalent Middle San Salvatore Dolomite. Keywords: Gastropods, Middle Triassic, Environment, Besano Formation, Southern Alps, Switzerland Introduction environment characterized by anoxic condition in bottom Te Middle Triassic Besano Formation (formerly called waters of an intraplatform basin (Bernasconi 1991; Schatz “Grenzbitumenzone” in most publications) is exposed 2005a). -
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. -
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 ------ - --- - - - - - --- --- - -- --- - -- - - --- -
Memorial to Brian Frederick Glenister
Memorial to Brian Frederick Glenister (1928–2012) DESMOND COLLINS 501-437 Roncesvalles Avenue, Toronto, Ontario M6R 3B9, Canada GILBERT KLAPPER Department of Earth and Planetary Sciences, Northwestern University, Evanston, Illinois 60208, USA W.W. NASSICHUK Geological Survey of Canada, 3303 33rd Street NW, Calgary, Alberta, T2L 2A7, Canada HOLMES SEMKEN Department of Geoscience, University of Iowa, Iowa City, Iowa 52242, USA CLAUDE SPINOSA Department of Geosciences, Boise State University, Boise, Idaho 83725 Brian F. Glenister, 83, a leading researcher on Paleozoic ammonoids, passed away on 7 June 2012 in Phoenix, Arizona. He was an influential member of the International Stratigraphic Commission and several of its subcommissions, led many seminars on Holocene lithofacies and molluscan biofacies in Florida Bay, and was an inspiring teacher for almost forty years at The University of Iowa in Iowa City. Brian was born in Albany, Western Australia on 28 September 1928 into a large family whose father died four years later. He was then raised by his eldest sister but also encouraged greatly in his studies by his mother. He attended the University of Western Australia in Perth, where he received a B.Sc., majoring in physics in 1948. Brian had taken an introductory geology course in order to fulfill requirements for the degree, and decided that he Brian Glenister at the Conklin Quarry in the liked it enough to switch to geology at the first opportunity, Middle Devonian Cedar Valley Limestone near so he took a postgraduate year of geology courses in Perth Iowa City, 1964, courtesy Desmond Collins. in 1949. In 1950, he enrolled in the M.Sc. -
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. -
Early Triassic) Ammonoids from the Uppermost Lusitaniadalen Member (Vikinghøgda Formation), Svalbard
Master Thesis, Department of Geosciences Late Smithian (Early Triassic) ammonoids from the uppermost Lusitaniadalen Member (Vikinghøgda Formation), Svalbard Veronica Piazza Late Smithian (Early Triassic) ammonoids from the uppermost Lusitaniadalen Member (Vikinghøgda Formation), Svalbard Veronica Piazza Master Thesis in Geosciences Discipline: Palaeontology Department of Geosciences Faculty of Mathematics and Natural Sciences University of Oslo 29.05.2015 i © Veronica Piazza, 2015 This work is published digitally through DUO – Digitale Utgivelser ved UiO http://www.duo.uio.no It is also catalogued in BIBSYS (http://www.bibsys.no/english) All rights reserved. No part of this publication may be reproduced or transmitted, in any form or by any means, without permission. ii Table of contents Acknowledgments ..................................................................................................................... 1 Abstract ..................................................................................................................................... 3 1. Introduction .......................................................................................................................... 5 2. Geological background ........................................................................................................ 6 2.1 Sedimentation and tectonics in the Early Mesozoic ......................................................... 7 2.2 Early and Middle Triassic deposits: the Sassendalen Group ........................................... -
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I I Rivista Italiana di Paleon roìor,iaeSrrltrqrriia I rolur ;;- -, | f;-' "oo, l UPPER OLENEKIAN (SPATHIAN) AMMONOIDS FROM CHIOS (LO\T/ER TRIASSIC, GREECE): TAXONOMY AND STRATIGRAPHIC POSITION. DOROTHEE MERTMANN' & VOLKER TACOBSHAGEN' Receh:ed July 1st,2002; accepted June 25,20A3 Key-raords: Ammonoidea, Triassic, Olenekian, Chios, Greece. There, the fossils are included in red limestones of rhe Hallstatt facies (Marmarorrapeza. Formation). Renz & Abstact. On the Greek island of Chios, Lower Triassic sections Renz (1948) have delivered rich ammonoid faunas from red limestones of the Hall- published a palaeontological description of statt facies. Here, we present a palaeontological description of Spatl-rian its ammonoids in a monograph. Bender (1970) was the ammonoids, which have been collected during two field campaigns by first to collect fossils from measured sections (CM i, kalian-German teams (Assereto et al. 1980; Gaetani et al. 1992). The II, III) in order to establish coordinared ammonoid and ammonoid assocìations are composed of Ceratitida and Phyllocerati- conodont stratigraphies. This author recognized, more- da, each order containing species of the Noritaceae, Hedenstroemia- ceae, Xenodiscaceae, Dinaritaceae, Pinacocerataceae, Phyllocerataceae, over, that the Spathian beds are overlain by lowermost Ptychitaceae, lJssuritaceae and Megaphyllitaceae. Long ranging gen- Anisian ones s/ith ammonoids comparable with faunas era, e.g. Procarnites and Leioplrylliter, are present as well as endemic of the so-called Hydaspian substage from the Himalayas ones, e.g. Cbiotites, which occurs exclusively in the Lower Trìassic of and Timor. Furthermore, Jacobshagen & Tietze (1974) Chios. The ammonoìd association is indicative of the Probungarites- described an associarion of both Spathian and Lower Subcolwmbites zone sensu Kumn.rel (1973a,). -
Early Changhsingian (Late Permian) Ammonoids from NW Iran
N. Jb. Geol. Paläont. Abh. 293/1 (2019), 37–56 Article E Stuttgart, July 2019 Early Changhsingian (Late Permian) ammonoids from NW Iran Dieter Korn, Abbas Ghaderi, and Nahideh Ghanizadeh Tabrizi With 25 figures Abstract: Early Changhsingian ammonoids from the Transcaucasus-NW Iranian region are poorly known. Here we revise the ammonoids of this interval based on new findings in sections of the Aras Valley and Ali Bashi Mountains of the Julfa region, NW Iran. We revise the ceratitid genera Phisonites, Iranites, Shevyrevites and Dzhulfites. We introduce the new genus Araxoceltites with the three new species A. sanestapanus, A. laterocostatus and A. cristatus. Key words: Late Permian, Ammonoidea, Iran, stratigraphy, diversity. 1. Introduction a high species richness, those from the Transcaucasus are comparatively poor. In their monograph describing Late Permian (Lopingian) ammonoids are remarkable the sections in Armenia and Azerbaijan, for instance, for their high overturn rates, which stand in contrast to Ruzhencev & Shevyrev (1965) listed only eight the Early and Middle Permian, during which the group xenodiscid species from this interval. This is in strik- evolved considerably slowly on the substage and stage ing contrast to the late Changhsingian, from where levels (e.g., Miller & Furnish 1940; Ruzhencev alone nearly 30 species are known from the Paratiro- 1952; Ruzhencev 1956; Leonova 2002). The Late lites Limestone of NW Iran (Korn et al. 2016). A Permian is, after the end-Guadalupian extinction event diversity analysis showed that the ammonoid diver- that caused a significant extinction of the goniati- sity is increasing towards the top of the formation tid ammonoids, characterized by the presence of am- (Kiessling et al. -
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 .................................................................................................................... -
Paleontological Contributions
THE UNIVERSITY OF KANSAS PALEONTOLOGICAL CONTRIBUTIONS May 15, 1970 Paper 47 SIGNIFICANCE OF SUTURES IN PHYLOGENY OF AMMONOIDEA JURGEN KULLMANN AND JOST WIEDMANN Universinit Tubingen, Germany ABSTRACT Because of their complex structure ammonoid sutures offer best possibilities for the recognition of homologies. Sutures comprise a set of individual elements, which may be changed during the course of ontogeny and phylogeny as a result of heterotopy, hetero- morphy, and heterochrony. By means of a morphogenetic symbol terminology, sutural formulas may be established which show the composition of adult sutures as well as their ontogenetic development. WEDEKIND ' S terminology system is preferred because it is the oldest and morphogenetically the most consequent, whereas RUZHENTSEV ' S system seems to be inadequate because of its usage of different symbols for homologous elements. WEDEKIND ' S system includes only five symbols: E (for external lobe), L (for lateral lobe), I (for internal lobe), A (for adventitious lobe), U (for umbilical lobe). Investigations on ontogenetic development show that all taxonomic groups of the entire superorder Ammonoidea can be compared one with another by means of their sutural development, expressed by their sutural formulas. Most of the higher and many of the lower taxa can be solely characterized and arranged in phylogenetic relationship by use of their sutural formulas. INTRODUCTION Today very few ammonoid workers doubt the (e.g., conch shape, sculpture, growth lines) rep- importance of sutures as indication of ammonoid resent less complicated structures; therefore, phylogeny. The considerable advances in our numerous homeomorphs restrict the usefulness of knowledge of ammonoid evolution during recent these features for phylogenetic investigations.