DOCSLIB.ORG

Theuniversity Oftexasbulletin 3101 Plate XII 230 the University of Texas Bulletin PLATE XIII Figures— Page 1

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Theuniversity Oftexasbulletin 3101 Plate XII 230 the University of Texas Bulletin PLATE XIII Figures— Page 1 TheUniversity of TexasBulletin No. 3101: January 1, 1931 Contributions to Geology, 1931 Bureau of Economic Geology J. A.Udden, Director E. H.Sellards, AssociateDirector PUBLISHED BY THE UNIVERSITY OF TEXAS AUSTIN Publications of The University of Texas Publications Committees GENERAL: Frederic Duncalp Mrs. C. M. Perry J. F.Dobie C. H. Slover J. L.Henderson G. W. Stumberg H. J. Muller A. P.Winston official: E. J. Mathews Killis Campbell C. F. Arrowood C. D.Simmons E. C.H.Bantel Bryant Smith The University publishes bulletins four times a month, so numbered that the first two digits of the number show the year of issue and thelast two the position in the yearly series. (For example, No. 3101 is the first bulletin of the year 1931.) These bulletins comprise the official publica- tions of the University, publications on humanistic and scientific subjects, and bulletins issued from time to time by various divisions of the University. The following bureaus and divisions distribute bulletins issuedby them; communications concerning bulletins in these fields should beaddressed toThe University of Texas,Austin,Texas,care of the bureau or division issuing the bulletin: Bureau of Business Research, Bureau of Economic Geology, Bureau of Engineering Research, Interscholastic League Bureau., andDivision of Extension. Communications concerning all other publications of the University should be addressed toUniversity Publications,TheUniversity of Texas,Austin. Additional copies of this publication may be procured from the Bureau of Economic Geology, The University of Texas, Austin, Texas, at $1.00 per copy The University of Texas Bulletin No. 3101: January 1, 1931 Contributions to Geology, 1931 Bureau of Economic Geology J. A Udden,Director E. H. Sellards, Associate Director PUBLISHED BY THE UNIVERSITY FOUR TIMES A MONTH, AND ENTERED AS SECOND-CLASS MATTER AT THE POSTOFFICE AT AUSTIN, TEXAS, UNDER THE ACT OF AUGUST 24, 1912 The benefits of education and of useful knowledge, generally diffused through a community, are essential to the preservationof a free govern- ment. Sam Houston Cultivated mind is the guardian genius of Democracy,and while guided and controlled by virtue, the noblest attribute of man. Itis the only dictator that freemen acknowledge, and the only security which freemendesire. Mirabeau B. Lamar Contents A. Erratics in the Pennsylvanian of Texas, by E. H.Sellards 9 Introduction 9 The Marathon uplift 11 The erratics 12 The Housetop Mountain locality 13 The Clark Ranch locality 17 Relation to regional geology 17 B. Some Major Structural Features of West Texas, by H. P. Bybee 19 Introduction 19 Major structural features 19 Extreme west Texas 19 The Franklin Mountains 20 The Hueco Bolson 21 The Diablo Plateau 22 The Salt Flat 22 The Guadalupe-Delaware-Apache Mountains 23 Southern end of the PermianBasin 24 The Delaware Basin 24 The Central Basin Platform 24 The Main Permian Basin 25 The Eastern Platform 25 Similarity of major structural features of west Texas 26 C. New Early Fusulinids from Texas, by Norman L. Thomas 27 Introduction and acknowledgements 27 Occurrence of the fossils 27 Age of formation containing the fossils 30 Descriptionof species 31 Fusulina llanoensis n.sp 1 31 Fusulina primaeva Skinner 32 D. Some Upper Cretaceous Ammonites in Western Texas, by W. S. Adkins 35 Description of localities 35 Chispa Summit 35 Southwest flank of Van Horn Mountains 39 West of Glenn Creek 40 Description of species 41 Mantelliceras budaense n. sp 41 Mantelliceras sp. aff. couloni (D'Orbigny) 42 Romanicerascumminsi n. sp 43 Romaniceras loboense n. sp 44 Metacalycoceras (?) sp 45 Coilopoceras eaglefordense n. sp 46 Coilopoceras chispaense n. sp 48 Coilopoceras austinense n. sp 49 Coilopoceras sp. aff. C. springeri Hyatt 51 Pseudaspidoceras (?) chispaense n. sp 51 Pseudaspidoceras(?) sp 53 Pseudaspidoceras (?) n. sp. A 53 Pseudaspidoceraseaglense (Adkins) 53 Pseudaspidoceras sp. aff. footeanum (Stoliczka) 54 Fagesia texana n. sp 55 Fagesia sp. cf. F. haarmani Bose 56 Thomasites sp. '— 56 Neoptychites sp. aff. N. gourguchoni Pervinquiere 57 4 Contents Pseudotissotia (?) n. sp 58 Hoplitoides (?) mirabilisBose (not Pervinquiere) 59 Kanabiceras septem-seriatum (Cragin) 60 Allocriocerasn. sp. 63 Scaphites sp. aff. africanus Pervinquiere 63 Scaphites sp. aff. aequalis Sowerby 64 Baculites sp. aff. gracilis Shumard 64 Metaptychoceras n. sp. aff. M. smithi (H. Woods) 64 Camptonectes sp. i 65 Status of correlationof formations 65 Supplementary statement relating to Neocardioceras 72 E. The Lower Claiborne on the Brazos River, by B. Coleman Renick and H. B. Stenzel 1 73 Introduction 73 Previous investigations 73 Present investigations 74 Geology 76 Mount Selman-CookMountain contact 76 Wilcox formation or group 81 Lower Claiborne group 81 Mount Selman formation 81 Carrizo sand . 81 Reklaw clay 83 Queen City sand 84 Weches clay 84 Cook Mountain formation 90 Sparta sand 90 Crockett clay 91 Upper Claiborne group 96 Yegua formation 96 F. Some Cretaceous foraminifera in Texas, by Helen Jeanne Plummer 109 Introduction 109 "Orbulina rock" 112 Descriptions of outcrops 118 Descriptions of genera and species.. 124 Family Reophacidae 124 Genus Haplostiche— : 124 texana (Conrad) 124 Family Lituolidae 126 Genus Flabellammina 126 alexanderi Cushman 126 Family Textulariidae 127 Genus Textularia 127 washitensis Carsey 127 rioensis Carsey 128 Genus Spiroplectammina 129 semicomplanata (Carsey) 129 Family Valvulinidae 130 Genus Dorothia 130 bulletta (Carsey) 132 Family Verneuilinidae 133 Genus Tritaxia 133 pyramidata Reuss 133 Genus Gaudryina 135 rugosa d'Orbigny 135 gradata Berthelin 136 Contents 5 Genus Gaudryinella 137 delrioensis Plummer 137 Genus Clavulina 138 insignis n. sp 138 Family Trochamminidae 140 Genus Trochammina 140 diagonis (Carsey) 140 Family Lagenidae 140 Genus Lenticulina 141 navarroensis (Plummer) 141 rotulata (Lamarck) 142 washitensis (Carsey) 142 Genus Astacolus 143 taylorensis n. sp 143 dissonus n.sp. 145 Genus Hemicr istellaria 146 ensis (Reuss) 146 silicula n. sp 148 Genus Dentalina 149 communis (d'Orbigny) 149 granti (Plummer) 149 soluta Reuss 150 reussi Neugeboren 151 raristriata (Chapman) 152 obliqua (Linne) 153 alternata (Jones) 153 crinita n. sp 154 Genus Nodosaria 155 radicula (Linne) 155 obscura Reuss 156 zippei Reuss 157 Genus Pseudoglandulina 158 sp. 158 Genus Lagena 159 hispida Reuss 159 sulcata (Walker and Jacob) 159 Genus Vaginulina 160 webbervillensis Carsey 160 simondsi Carsey 161 regina n. sp 162 Genus Flabellina 163 interpunctata yon der Marck 163 projecta ( Carsey) 165 rugosa d'Orbigny 166 Genus Kyphopyxa 168 christneri (Carsey) 168 Genus Frondicularia 171 clarki Bagg 171 Family Polymorphinidae 173 Genus Guttulina 173 problema d'Orbigny 173 Genus Pseudopolymorphina 173 cuyleri n. sp -" 173 Genus Ramulina 174 globulifera H. B. Brady 174 Family Nonionidae 175 Genus Nonionella 175 robustan. sp 175 6 Contents Family Heterohelicidae 176 Genus Giimbelina 176 excolata Cushman 176 globifera (Reuss) 177 Genus Ventilabrella 178 carseyae n. sp 178 Family Buliminidae 179 Genus Buliminella 179 carseyaen. sp 179 Genus Bulimina 180 pupoides d'Orbigny 180 Genus Bolivina 181 decorata Jones 181 Genus Loxostoma 182 plaitum (Carsey) 182 Genus Siphogenerinoides 183 plummeri (Cushman) , 183 Genus Uvigerina 186 seligi Cushman 186 Genus Dentilinopsis : 187 excavata (Reuss) 187 Family Rotaliidae 188 Genus Discorbis 188 correcta Carsey 188 Genus Valvulineria 190 asterigerinoides n. sp 190 Genus Gyroidina 190 depressa (Alth) 190 nitida (Reuss) 191 Genus Eponides : 192 micheliniana (d'Orbigny) 192 Family Globigerinidae 193 Genus Globigerina 193 washitensis Carsey 193 rugosa Plummer 194 Family Globorotaliidae 195 Genus Globotruncana 195 area (Cushman) 195 fornicata n. sp 198 canaliculatavar. ventricosa White 199 Genus Globorotalia 199 delrioensis n. sp 199 Family Anomalinidae 200 Genus Anomalina 200 pseudopapillosa Carsey 200 grosserugosa (Giimbel) 201 taylorensis -Carsey 202 falcata (Reuss) 202 Index 237 Contents 7 Illustrations Figures Fig. 1. Sketch map of the Marathon region 10 Fig. 2. Hill showing profusion of boulders 14 Fig. 3. Large novaculite boulder 14 Fig. 4. The Haymondformation near the Clark Ranch house. 17 Fig. 5. Map showing the major structural features of west Texas 26 Fig. 6 Bluff on Pfluger Ranch, LlanoRiver 28 Fig. 7. Sketchmap of Chispa Summit 36 Fig. 8. Coilopoceras sp. from Eagle Ford formation 51 Fig. 9. Geologic map of the lower Claiborne in the vicinity of the Brazos River 75 Fig. 10. Columnar section of exposed rocks and characteristic fossils along the Brazos River 79 Fig. 11. Geologic sections along Crockett-Sparta contact in the vicinity of the Brazos River 88 Fig. 12. Map of Austin area showing the Travis County outcrops 120 Plates Following page 203 Plate I. New early fusulinids. Plates IIto V. Upper Cretaceous ammonites.' Plates VI to VII. Tertiary fossils. Plates VIII to XV. Cretaceous foraminifera. The "Contributions to Geology" includes shorter papers of which, in additionto other Bureau publications,usually one volume per year will be issued. Each volume of the "Contributions" bears a bulletin number and is thus a part of the series of The University of Texas bulletinsissued from the Bureau of Economic Geology. E. H. Sellards, AssociateDirector. Erratics in the Pennsylvanian of Texas BY E. H. Sellards Introduction At the meeting of the Geological Society of America in Toronto, Canada, December, 1930, announcement was made of the discovery of erratics of large size in the Haymond formation of Carboniferous age
Load more

Recommended publications
  • 2015 Annual Spring Meeting Macey Center New Mexico Tech Socorro, NM
    New Mexico Geological Society Proceedings Volume 2015 Annual Spring Meeting Macey Center New Mexico Tech Socorro, NM NEW MEXICO GEOLOGICAL SOCIETY 2015 SPRING MEETING Friday, April 24, 2015 Macey Center NM Tech Campus Socorro, New Mexico 87801 NMGS EXECUTIVE COMMITTEE President: Mary Dowse Vice President: David Ennis Treasurer: Matthew Heizler Secretary: Susan Lucas Kamat Past President: Virginia McLemore 2015 SPRING MEETING COMMITTEE General Chair: Matthew Heizler Technical Program Chair: Peter Fawcett Registration Chair: Connie Apache ON-SITE REGISTRATION Connie Apache WEB SUPPORT Adam Read ORAL SESSION CHAIRS Peter Fawcett, Matt Zimmerer, Lewis Land, Spencer Lucas, Matt Heizler Session 1: Theme Session - Session 2: Volcanology and Paleoclimate: Is the Past the Key to Proterozoic Tectonics: the Future? Auditorium: 8:45 AM - 10:45 AM Galena Room: 8:45 AM - 10:45 AM Chair: Peter Fawcett Chair: Matthew Zimmerer GLOBAL ICE AGES, REGIONAL TECTONISM U-PB GEOCHRONOLOGY OF ASH FALL TUFFS AND LATE PALEOZOIC SEDIMENTATION IN IN THE MCRAE FORMATION (UPPER NEW MEXICO CRETACEOUS), SOUTH-CENTRAL NEW MEXICO — Spencer G. Lucas and Karl Krainer — Greg Mack, Jeffrey M. Amato, and Garland 8:45 AM - 9:00 AM R. Upchurch 8:45 AM - 9:00 AM URANIUM ISOTOPE EVIDENCE FOR PERVASIVE TIMING, GEOCHEMISTRY, AND DISTRIBUTION MARINE ANOXIA DURING THE LATE OF MAGMATISM IN THE RIO GRANDE RIFT ORDOVICIAN MASS EXTINCTION. — Rediet Abera, Brad Sion, Jolante van Wijk, — Rickey W Bartlett, Maya Elrick, Yemane Gary Axen, Dan Koning, Richard Chamberlin, Asmerom, Viorel Atudorei, and Victor Polyak Evan Gragg, Kyle Murray, and Jeff Dobbins 9:00 AM - 9:15 AM 9:00 AM - 9:15 AM FAUNAL AND FLORAL DYNAMICS DURING THE N-S EXTENSION AND BIMODAL MAGMATISM EARLY PALEOCENE: THE RECORD FROM THE DURING EARLY RIO GRANDE RIFTING: SAN JUAN BASIN, NEW MEXICO INSIGHTS FROM E-W STRIKING DIKES AT — Thomas E.
    [Show full text]
  • Decapode.Pdf
    We are pleased and honored to welcome at the Paléospace Museum of Villers-sur-Mer the “6th Symposium on Mesozoic and Cenozoic Decapod Crustaceans”. Villers-sur-Mer is a place universally known by specialists and amateurs of palaeontology due to its famous Vaches Noires cliffs. Villers-sur-Mer has also the distinction of being the only French seaside resort located on the Greenwich Meridian line. The Paléospace is a Museum funded in 2011 with the label Musée de France. Three main animations linked to the Time are presented: palaeontology, astronomy and nature with the neighbouring marsh. The museum is in a constant evolution. For instance, an exhibition specially dedicated to dinosaurs was opened two years ago and a planetarium will open next summer. Every year a very high quality temporary exhibition takes place during the summer period with very numerous animations during all the year. The Paléospace does not stop progressing in term of visitors (56 868 in 2015) and its notoriety is universally recognized both by the other museums as by the scientific community. We are very proud of these unexpected results. We thank the dynamism and the professionalism of the Paléospace team which is at the origin of this very great success. We wish you a very good stay at Villers-sur-Mer, a beautiful visit of the Paléospace and especially an excellent congress. Jean-Paul Durand, Mayor and President of Paléospace MOT DU MAIRE DE VILLERS-SUR-MER Nous sommes très heureux et très honorés d’accueillir à Villers-sur-Mer, le « 6e Symposium on Mesozoic and Cenozoic Decapod Crustaceans » dans le cadre du Paléospace.
    [Show full text]
  • Vita Scientia Revista De Ciências Biológicas Do CCBS
    Volume III - Encarte especial - 2020 Vita Scientia Revista de Ciências Biológicas do CCBS © 2020 Universidade Presbiteriana Mackenzie Os direitos de publicação desta revista são da Universidade Presbiteriana Mackenzie. Os textos publicados na revista são de inteira responsabilidade de seus autores. Permite-se a reprodução desde que citada a fonte. A revista Vita Scientia está disponível em: http://vitascientiaweb.wordpress.com Dados Internacionais de Catalogação na Publicação (CIP) Vita Scientia: Revista Mackenzista de Ciências Biológi- cas/Universidade Presbiteriana Mackenzie. Semestral ISSN:2595-7325 UNIVERSIDADE PRESBITERIANA MACKENZIE Reitor: Marco Túllio de Castro Vasconcelos Chanceler: Robinson Granjeiro Pro-Reitoria de Graduação: Janette Brunstein Pro-Reitoria de Extensão e Cultura: Marcelo Martins Bueno Pro-Reitoria de Pesquisa e Pós-Graduação: Felipe Chiarello de Souza Pinto Diretora do Centro de Ciências Biológicas e da Saúde: Berenice Carpigiani Coordenador do Curso de Ciências Biológicas: Adriano Monteiro de Castro Endereço para correspondência Revista Vita Scientia Centro de Ciências Biológicas e da Saúde Universidade Presbiteriana Mackenzie Rua da Consolação 930, São Paulo (SP) CEP 01302907 E-mail: [email protected] Revista Vita Scientia CONSELHO EDITORIAL Adriano Monteiro de Castro Camila Sachelli Ramos Fabiano Fonseca da Silva Leandro Tavares Azevedo Vieira Patrícia Fiorino Roberta Monterazzo Cysneiros Vera de Moura Azevedo Farah Carlos Eduardo Martins EDITORES Magno Botelho Castelo Branco Waldir Stefano CAPA Bruna Araujo PERIDIOCIDADE Publicação semestral IDIOMAS Artigos publicados em português ou inglês Universidade Presbiteriana Mackenzie, Revista Vita Scientia Rua da Consolaçãoo 930, Edíficio João Calvino, Mezanino Higienópolis, São Paulo (SP) CEP 01302-907 (11)2766-7364 Apresentação A revista Vita Scientia publica semestralmente textos das diferentes áreas da Biologia, escritos em por- tuguês ou inglês: Artigo resultados científicos originais.
    [Show full text]
  • A New Classification of the Xanthoidea Sensu Lato
    Contributions to Zoology, 75 (1/2) 23-73 (2006) A new classifi cation of the Xanthoidea sensu lato (Crustacea: Decapoda: Brachyura) based on phylogenetic analysis and traditional systematics and evaluation of all fossil Xanthoidea sensu lato Hiroaki Karasawa1, Carrie E. Schweitzer2 1Mizunami Fossil Museum, Yamanouchi, Akeyo, Mizunami, Gifu 509-6132, Japan, e-mail: GHA06103@nifty. com; 2Department of Geology, Kent State University Stark Campus, 6000 Frank Ave. NW, North Canton, Ohio 44720, USA, e-mail: [email protected] Key words: Crustacea, Decapoda, Brachyura, Xanthoidea, Portunidae, systematics, phylogeny Abstract Family Pilumnidae ............................................................. 47 Family Pseudorhombilidae ............................................... 49 A phylogenetic analysis was conducted including representatives Family Trapeziidae ............................................................. 49 from all recognized extant and extinct families of the Xanthoidea Family Xanthidae ............................................................... 50 sensu lato, resulting in one new family, Hypothalassiidae. Four Superfamily Xanthoidea incertae sedis ............................... 50 xanthoid families are elevated to superfamily status, resulting in Superfamily Eriphioidea ......................................................... 51 Carpilioidea, Pilumnoidoidea, Eriphioidea, Progeryonoidea, and Family Platyxanthidae ....................................................... 52 Goneplacoidea, and numerous subfamilies are elevated
    [Show full text]
  • Classification of Ammonitic Sutures Using Gis
    Palaeontologia Electronica http://palaeo-electronica.org PATTERN MATCHING: CLASSIFICATION OF AMMONITIC SUTURES USING GIS Lori L. Manship ABSTRACT Geographic Information Systems (GIS) is utilized to apply spatial analysis tech- niques to visually and quantitatively match ammonoid suture patterns for classification. The Turonian ammonite family Coilopoceratidae was chosen as the basis for this project, because the similar suture patterns within the family make species-level identi- fication a challenge. A Coilopoceras springeri suture template was created by overlay- ing 10 different Coilopoceras springeri suture patterns, using the right holotype suture pattern as the basal or designation guide. Templates for Coilopoceras colleti and Hopli- toides sandovalensis sutures were constructed in the same manner. Sutures of known and unknown specimens were tested within the templates in order to identify species. The sutures of known specimens matched with the correct templates and did not com- pare well with other species’ templates. Sutures of unknown specimens clearly fit within one template better than within others and, hence, could be reliably classified to the species level. In addition to species classification, the GIS method provides a mechanism for both visual and quantitative comparisons of individual sutures. This GIS method will aid professional and avocational paleontologists, biostratigraphers, and geologists in classifying ammonite species, and may help further our understanding of suture morphogenesis and function by providing a standard basis for morphological comparison of complex sutural patterns. Department of Geosciences, Texas Tech University, Lubbock, Texas, 79409-1053, USA. [email protected] KEY WORDS: ammonite; Geographic Information Systems (GIS); suture pattern; Turonian; Cretaceous PE Article Number: 7.2.5A Copyright: Paleontological Society.
    [Show full text]
  • Fossil Crustacea Atlantic and Gulf Coastal Plain
    LIBRARY VJUSHMAN LABORATORY GE0WG1UAL UOVlkilk Ot AMERICA SPECIAL PAPERS NUMBER 2 FOSSIL CRUSTACEA OF THE ATLANTIC AND GULF COASTAL PLAIN BY MARY J. RATHBUN INVERTEBRATE \ ZOOLOGY % jDrustacea C | B R ft R-Y Wmi V CftUSTAOE* V PUBLISHED BY THE SOCIETY 14)35 COUNCIL, 1935 President: NEVIN M. FENNEMAN, Cincinnati, Ohio Past President: W. EL COLLINS, Ottawa, Canada Vice-Presidents: EDSON S. BASTIN, Chicago, 111. JOHN B. REESIDE, JR., Washington, D. C. DONNEL F. HEWETT, Washington, D. C. AUSTIN F. ROGERS, Stanford University, Cal. Secretary: CHARLES P. BERKEY, 419 W. 117th Street, New York, N. Y. Treasurer: EDWARD B. MATHEWS, Johns Hopkins University, Baltimore, Md. Councilors: (Term expires 1935) FRANK F. GROUT, Minneapolis, Minn. W. 0. HOTCHKISS, Houghton, Mich. JOSEPH STANLEY-BROWN, Kew Gardens, N. Y. (Term expires 1936) F. W. DEWOLF, Urbana, 111. D. H. MCLAUGHLIN, Cambridge, Mass. ADOLPH KNOPF, New Haven, Conn. (Term expires 1937) WALTER H. BUCHER, Cincinnati, Ohio RUSSELL S. KNAPPEN, Tulsa, Okla. E. L. BRUCE, Kingston, Ont., Canada GEOLOGICAL SOCIETY OF AMERICA SPECIAL PAPERS NUMBER 2 FOSSIL CRUSTACEA OF THE ATLANTIC AND GULF COASTAL PLAIN BY MARY J. RATHBUN L I B R a R Y pep^ Of O^UcTtkUEA ilDBRAT L ZOOLOGY Crustacea PUBLISHED BY THE SOCIETY 1935 WAVERLY PRESS, INC. BALTIMORE, MD. The Special Papers of The Geological Society of America are made possible through the bequest of Richard Alexander Fullerton Penrose, Jr. CONTENTS INTRODUCTION Statement of the Problem Sources of Material Unusual Extensions of Range Mingling of Cretaceous with Eocene Correlation with European Forms New Additions LIST OF SPECIES AND DISTRIBUTION DETAILED DESCRIPTION OF GENERA AND SPECIES.
    [Show full text]
  • How to Become a Crab: Phenotypic Constraints on a Recurring Body Plan
    Preprints (www.preprints.org) | NOT PEER-REVIEWED | Posted: 25 December 2020 doi:10.20944/preprints202012.0664.v1 How to become a crab: Phenotypic constraints on a recurring body plan Joanna M. Wolfe1*, Javier Luque1,2,3, Heather D. Bracken-Grissom4 1 Museum of Comparative Zoology and Department of Organismic & Evolutionary Biology, Harvard University, 26 Oxford St, Cambridge, MA 02138, USA 2 Smithsonian Tropical Research Institute, Balboa–Ancon, 0843–03092, Panama, Panama 3 Department of Earth and Planetary Sciences, Yale University, New Haven, CT 06520-8109, USA 4 Institute of Environment and Department of Biological Sciences, Florida International University, Biscayne Bay Campus, 3000 NE 151 Street, North Miami, FL 33181, USA * E-mail: [email protected] Summary: A fundamental question in biology is whether phenotypes can be predicted by ecological or genomic rules. For over 140 years, convergent evolution of the crab-like body plan (with a wide and flattened shape, and a bent abdomen) at least five times in decapod crustaceans has been known as ‘carcinization’. The repeated loss of this body plan has been identified as ‘decarcinization’. We offer phylogenetic strategies to include poorly known groups, and direct evidence from fossils, that will resolve the pattern of crab evolution and the degree of phenotypic variation within crabs. Proposed ecological advantages of the crab body are summarized into a hypothesis of phenotypic integration suggesting correlated evolution of the carapace shape and abdomen. Our premise provides fertile ground for future studies of the genomic and developmental basis, and the predictability, of the crab-like body form. Keywords: Crustacea, Anomura, Brachyura, Carcinization, Phylogeny, Convergent evolution, Morphological integration 1 © 2020 by the author(s).
    [Show full text]
  • Phylogeny, Diversity, and Ecology of the Ammonoid Superfamily Acanthoceratoidea Through the Cenomanian and Turonian
    PHYLOGENY, DIVERSITY, AND ECOLOGY OF THE AMMONOID SUPERFAMILY ACANTHOCERATOIDEA THROUGH THE CENOMANIAN AND TURONIAN DAVID A.A. MERTZ A Thesis Submitted to the Graduate College of Bowling Green State University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE August 2017 Committee: Margaret Yacobucci, Advisor Andrew Gregory Keith Mann © 2017 David Mertz All Rights Reserved iii ABSTRACT Margaret Yacobucci Both increased extinction and decreased origination, caused by rising oceanic anoxia and decreased provincialism, respectively, have been proposed as the cause of the Cenomanian Turonian (C/T) extinction event for ammonoids. Conflicting evidence exists for whether diversity actually dropped across the C/T. This study used the ammonoid superfamily Acanthoceratoidea as a proxy for ammonoids as a whole, particularly focusing on genera found in the Western Interior Seaway (WIS) of North America, including Texas. Ultimately, this study set out to determine 1) whether standing diversity decreased across the C/T boundary in the WIS, 2) whether decreased speciation or increased extinction in ammonoids led to a drop in diversity in the C/T extinction event, 3) how ecology of acanthoceratoid genera changed in relation to the C/T extinction event, and 4) whether these ecological changes indicate rising anoxia as the cause of the extinction. In answering these questions, three phylogenetic analyses were run that recovered the families Acanthoceratidae, Collignoniceratidae, and Vascoceratidae. Pseudotissotiidae was not recovered at all, while Coilopoceratidae was recovered but reclassified as a subfamily of Vascoceratidae. Seven genera were reclassified into new families and one genus into a new subfamily. After calibrating the trees with stratigraphy, I was able to determine that standing diversity dropped modestly across the C/T boundary and the Early/Middle Turonian boundary.
    [Show full text]
  • Cenomanian Invertebrate Assemblage from the Dakota Sandstone Near Ghost Ranch, Rio Arriba County, New Mexico Spencer G
    Cenomanian invertebrate assemblage from the Dakota Sandstone near Ghost Ranch, Rio Arriba County, New Mexico Spencer G. Lucas and Larry F. Rinehart, New Mexico Museum of Natural History and Science, 1801 Mountain Road NW, Albuquerque, New Mexico 87104, [email protected]; Shari Kelley, New Mexico Bureau of Geology and Mineral Resources, New Mexico Institute of Mining and Technology, 801 Leroy Place, Socorro, New Mexico 87801 Abstract A small assemblage of invertebrate fossils from the Cretaceous Dakota Sandstone at Arroyo del Yeso near Ghost Ranch, Rio Arriba County, New Mexico, is the first age-diagnostic fossil assemblage documented from the inter- tongued Dakota–Mancos succession in the Chama Basin. The fossils are assigned to the bivalves Legumen sp., Exogyra sp., Inoceramus arvanus Stephenson, and I. prefragilis Stephen- son and the ammonite cf. Acanthoceras amphi- bolum Morrow. They indicate the Acanthoceras amphibolum Zone of middle Cenomanian age and support lithostratigraphic identification of the fossil-bearing strata as the Paguate Sandstone Tongue of the Dakota Sandstone. Introduction Newberry (1876) first identified Cretaceous strata in the Chama Basin of northern New Mexico, and many subsequent workers in the Chama Basin (e.g., Dane 1960; McPeek 1965; Landis and Dane 1967; Landis et al. 1973; Grant and Owen 1974; Saucier 1974) have recognized the Dakota Sandstone as an approximately 30–60-m-thick sandstone- dominated interval at or near the base of the Cretaceous section. The most recent synthe- sis of Dakota Sandstone stratigraphy in the Chama Basin (Owen et al. 2005) identified formal units of the intertongued Dakota– Mancos succession that were first identified to the south, in west-central New Mexico.
    [Show full text]
  • 55819057.Pdf
    GEOLOGICA BELGICA MEETING 2006 www.ulg.ac.be/geolsed/geologie www.sciencesnaturelles.be/geology/products/geolbelgica/ 2nd BELGIAN GEOLOGICAL CONGRESS LIEGE, BELGIUM, 7 – 8 September 2006 PROGRAM Thursday September 7th 8H00-9H00: WELCOME OF PARTICIPANTS 9H00-9H10: Opening of the meeting: the word of the president (D. Laduron) CLIMATE AND ENVIRONMENTAL GEOLOGY 9H10-9H30: Yans J., Dupuis C. Dating of the weathering processes in the Ardenne area (Belgium) 9H30-9H50: Quinif Y. U/Th dating of a near water-table speleothem in the cave of Han-sur-Lesse - Implications on geodynamics evolution of Ardenne 9H50-10H10: Petermans T., Rosset P., Foriers E., Camelbeeck T. Evaluation and mapping of local site effects and seismic hazard: case studies in Mons Basin and Brussels region 10H10-10H30: Petit J., Taillez A., Verheyden S., Chou L., Mattielli N. First steps towards Cu and Zn isotope geochemistry in estuarine environments 10H30-10H50: COFFEE BREAK AND POSTER SESSION 10H50-11H10: Missiaen, P., Van Itterbeeck, J., Folie, A.,. Markevich, V.S., Van Damme,D., Dian-Yong, G., Smith, Th. The Subeng mammal site (Late Paleocene, China): evidence for a unique woodland on the dry Mongolian Plateau 11H10-11H30: De Vleeschouwer F., Van Vliët-Lanoé B., Fagel N., Richter T., Boës X., Gehrels M. High resolution petrography of impregnated peat columns containing tephras. Principle, applications and perspectives 11H30-11H50: Renson V., De Vleeschouwer F., Fagel N., Mattielli N., Nekrassoff S., Streel, M. Contribution of elemental and lead isotopes geochemistry to archeology in a Belgian peat bog (Hautes Fagnes) 11H50-12H10: De Batist M., Artemov Y., Beaubien S., Greinert J., Holzner C., Kipfer R., Lombardi S., McGinnis D., Naudts L., Schmale O., Schubert C., Van Rensbergen P., Zuppi G.M.
    [Show full text]
  • CHAPTER I I I Sistematic DESCRIPTION
    CHAPTER III SiSTEMATIC DESCRIPTION CIUPTER III systematic description Section I : Mortonlceratinae Introduction : The ammonoid species described by Stoliczka under the group of Ammonites crlstatl were sub­ divided by him into species 1, Ammonites blanfordianus, 2, Ammonites inflatus, condollianus. ootatoorensis and corruptus, 3, Amnionites propinquus. 4. Ammonites obesus, 5. Ammonites se rratocarlnatus. 6, Ammonite s subtricarinatus. These were transferred by later workers e.g. Kossmat to Schloenbachia and its subgenera as : Schloenbachla (Tropitoldes) . S. (Prlnotropis) . S. (Peroniceras). S, (Munerlceras) etc. According to present ideas the above mentioned species have undergone further transfers and except those of the Inflata group, are placed under different subfamilies, viz. Peroniceratlnae, Mune rice rat inae, etc. These species are, therefore, not considered under the present section; but those of the Inflata group which are now found to belong to the sub­ family Mortonlceratinae are dealt with here. The species which represent this subfamily in the present collection, viz. Mortoniceras (Mortoniceras) inflatum (Sow.); M. (M.) rostratum (Sow.), Mortonioeras (Peiradoceras) indicum spo nov., M. (Purnovarites) perinflatum Spath., M. (p.) - 17 - - 18 - subquadratum Spath, M. (d .) sp. Indet; ?Mortonicera8 (?Mortoniceras) deshpandel sp, nov., Prohysteroceras (Goodhallltes) stoliczkal sp. nov. are dealt with here., Of these eight species Mortonlceras (Mortonlceras) inflatum was described by Stoliczka and Kossmat from these rocks. Three species viz. Mortoniceras (M.) rostratum (Sow.), M. (Durnovarites) perlnflatum Spath., M. (D .) subquadratum Spath. are species already known and are recorded from outside South Indian basin; they are now recorded here for the first time. The remaining species described here are new to science. The subfamily Mortoniceratinae has an interesting history, being used in the first instance by Spath (1925) to comprise species of texanum group of Senonian.
    [Show full text]
  • Sucesión De Amonitas Del Cretácico Superior (Cenomaniano – Coniaciano) De La Parte Más Alta De La Formación Hondita Y De L
    Boletín de Geología Vol. 33, N° 1, enero-junio de 2011 SUCESIÓN DE AMONITAS DEL CRETÁCICO SUPERIOR (CENOMANIANO – CONIACIANO) DE LA PARTE MÁS ALTA DE LA FORMACIÓN HONDITA Y DE LA FORMACIÓN LOMA GORDA EN LA QUEBRADA BAMBUCÁ, AIPE - HUILA (COLOMBIA, S. A.) Pedro Patarroyo1 RESUMEN La sección de la quebrada Bambucá (Aipe - Huila) posee una buena exposición de los depósitos del Cretácico del Valle Superior del Magdalena. De la parte alta de la Formación Hondita se recolectaron Acanthoceras sp. y Rhynchostreon sp. del Cenomaniano superior. Dentro del segmento inferior de la Formación Loma Gorda se hallaron Choffaticeras (C.) cf. segne, Fagesia cf. catinus, Neoptychites cf. andinus, Mitonia gracilis, Morrowites sp., Nannovascoceras ? sp., Quitmaniceras ? sp., Benueites ? sp. junto con Mytiloides kossmati, M. goppelnensis y Anomia sp. del Turoniano inferior. Estratigráficamente arriba aparecen Paramammites ? sp., Hoplitoides sp. H. ingens, H. cf. lagiraldae, Codazziceras ospinae, Allocrioceras sp., que pueden estar representando entre el Turoniano inferior y medio. Para la parte alta de este segmento se encontraron Prionocycloceras sp. P. guayabanum, Reesidites subtuberculatum, Subprionotropis colombianus, Mytiloides scupini, Dydimotis sp., Gauthiericeras sp., Anagaudryceras ? sp., Eulophoceras jacobi, Paralenticeras sieversi, Hauericeras cf. madagascarensis, Peroniceras (P.) subtricarinatum, Forresteria (F.) sp., Barroisiceras cf. onilahyense, Ankinatsytes venezolanus que abarcan entre el Turoniano superior y el Coniaciano. Con base en la fauna colectada no es posible establecer los límites Cenomaniano/Turoniano y Turoniano/Coniaciano. Palabras clave: Amonitas, Cretácico superior, Valle Superior del Magdalena, Aipe-Huila-Colombia. UPPER CRETACEOUS AMMONITE SUCCESSION (CENOMANIAN – CONIACIAN) RELATED TO THE UPPER HONDITA AND LOMA GORDA FORMATIONS ALONG THE BAMBUCÁ CREEK, AIPE - HUILA (COLOMBIA, S.A.) ABSTRACT The Bambucá creek section (Aipe - Huila) shows a very good exposition of the Upper Magdalena Valley Cretaceous deposits.
    [Show full text]