Iowa's Self-Trained Paleontologists
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
Stratigraphy and Paleontology of Mid-Cretaceous Rocks in Minnesota and Contiguous Areas
Stratigraphy and Paleontology of Mid-Cretaceous Rocks in Minnesota and Contiguous Areas GEOLOGICAL SURVEY PROFESSIONAL PAPER 1253 Stratigraphy and Paleontology of Mid-Cretaceous Rocks in Minnesota and Contiguous Areas By WILLIAM A. COBBAN and E. A. MEREWETHER Molluscan Fossil Record from the Northeastern Part of the Upper Cretaceous Seaway, Western Interior By WILLIAM A. COBBAN Lower Upper Cretaceous Strata in Minnesota and Adjacent Areas-Time-Stratigraphic Correlations. and Structural Attitudes By E. A. M EREWETHER GEOLOGICAL SURVEY PROFESSIONAL PAPER 1 2 53 UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON 1983 UNITED STATES DEPARTMENT OF THE INTERIOR JAMES G. WATT, Secretary GEOLOGICAL SURVEY Dallas L. Peck, Director Library of Congress Cataloging in Publication Data Cobban, William Aubrey, 1916 Stratigraphy and paleontology of mid-Cretaceous rocks in Minnesota and contiguous areas. (Geological Survey Professional Paper 1253) Bibliography: 52 p. Supt. of Docs. no.: I 19.16 A. Molluscan fossil record from the northeastern part of the Upper Cretaceous seaway, Western Interior by William A. Cobban. B. Lower Upper Cretaceous strata in Minnesota and adjacent areas-time-stratigraphic correlations and structural attitudes by E. A. Merewether. I. Mollusks, Fossil-Middle West. 2. Geology, Stratigraphic-Cretaceous. 3. Geology-Middle West. 4. Paleontology-Cretaceous. 5. Paleontology-Middle West. I. Merewether, E. A. (Edward Allen), 1930. II. Title. III. Series. QE687.C6 551.7'7'09776 81--607803 AACR2 For sale by the Distribution Branch, U.S. -
Progress in Echinoderm Paleobiology
Journal of Paleontology, 91(4), 2017, p. 579–581 Copyright © 2017, The Paleontological Society 0022-3360/17/0088-0906 doi: 10.1017/jpa.2017.20 Progress in echinoderm paleobiology Samuel Zamora1,2 and Imran A. Rahman3 1Instituto Geológico y Minero de España (IGME), C/Manuel Lasala, 44, 9ºB, 50006, Zaragoza, Spain 〈[email protected]〉 2Unidad Asociada en Ciencias de la Tierra, Universidad de Zaragoza-IGME, Zaragoza, Spain 3Oxford University Museum of Natural History, Parks Road, Oxford, OX1 3PW, United Kingdom 〈[email protected]〉 Echinoderms are a diverse and successful phylum of exclusively Universal elemental homology (UEH) has proven to be one marine invertebrates that have an extensive fossil record dating of the most powerful approaches for understanding homology back to Cambrian Stage 3 (Zamora and Rahman, 2014). There in early pentaradial echinoderms (Sumrall, 2008, 2010; Sumrall are five extant classes of echinoderms (asteroids, crinoids, and Waters, 2012; Kammer et al., 2013). This hypothesis echinoids, holothurians, and ophiuroids), but more than 20 focuses on the elements associated with the oral region, extinct groups, all of which are restricted to the Paleozoic identifying possible homologies at the level of specific plates. (Sumrall and Wray, 2007). As a result, to fully appreciate the Two papers, Paul (2017) and Sumrall (2017), deal with the modern diversity of echinoderms, it is necessary to study their homology of plates associated with the oral area in early rich fossil record. pentaradial echinoderms. The former contribution describes and Throughout their existence, echinoderms have been an identifies homology in various ‘cystoid’ groups and represents a important component of marine ecosystems. -
Wilson's Creek National Battlefield Geologic Resources Inventory
Geologic Resources Inventory Scoping Summary Wilson’s Creek National Battlefield, Missouri Geologic Resources Division Prepared by John Graham National Park Service June 8, 2011 US Department of the Interior The Geologic Resources Inventory (GRI) provides each of 270 identified natural area National Park System units with a geologic scoping meeting and summary (this document), a digital geologic map, and a Geologic Resources Inventory report. The purpose of scoping is to identify geologic mapping coverage and needs, distinctive geologic processes and features, resource management issues, and monitoring and research needs. Geologic scoping meetings generate an evaluation of the adequacy of existing geologic maps for resource management, provide an opportunity to discuss park-specific geologic management issues, and if possible include a site visit with local experts. The National Park Service held a GRI scoping meeting for Wilson’s Creek National Battlefield on April 5, 2011 at park headquarters. Jason Kenworthy (NPS Geologic Resources Division) presented an overview of the Geologic Resources Inventory and led the discussion regarding geologic issues, features, and processes at Wilson’s Creek National Battlefield. After Bill Duley (Missouri Department of Natural Resources) presented an overview of Missouri’s geology, Tim Connors (NPS Geologic Resources Division) facilitated the discussion of map coverage at the park. In addition to Bill Duley, other geologists who were familiar with the local geology included Jerry Prewett (Missouri Department of Natural Resources) and Doug Gouzie (Missouri State University). Participants at the meeting also included Superintendent Ted Hillmer and Resource Manager Gary Sullivan. In the afternoon, Gary Sullivan led the participants on a field trip throughout the park. -
Reinterpretation of the Enigmatic Ordovician Genus Bolboporites (Echinodermata)
Reinterpretation of the enigmatic Ordovician genus Bolboporites (Echinodermata). Emeric Gillet, Bertrand Lefebvre, Véronique Gardien, Emilie Steimetz, Christophe Durlet, Frédéric Marin To cite this version: Emeric Gillet, Bertrand Lefebvre, Véronique Gardien, Emilie Steimetz, Christophe Durlet, et al.. Reinterpretation of the enigmatic Ordovician genus Bolboporites (Echinodermata).. Zoosymposia, Magnolia Press, 2019, 15 (1), pp.44-70. 10.11646/zoosymposia.15.1.7. hal-02333918 HAL Id: hal-02333918 https://hal.archives-ouvertes.fr/hal-02333918 Submitted on 13 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. 1 Reinterpretation of the Enigmatic Ordovician Genus Bolboporites 2 (Echinodermata) 3 4 EMERIC GILLET1, BERTRAND LEFEBVRE1,3, VERONIQUE GARDIEN1, EMILIE 5 STEIMETZ2, CHRISTOPHE DURLET2 & FREDERIC MARIN2 6 7 1 Université de Lyon, UCBL, ENSL, CNRS, UMR 5276 LGL-TPE, 2 rue Raphaël Dubois, F- 8 69622 Villeurbanne, France 9 2 Université de Bourgogne - Franche Comté, CNRS, UMR 6282 Biogéosciences, 6 boulevard 10 Gabriel, F-2100 Dijon, France 11 3 Corresponding author, E-mail: [email protected] 12 13 Abstract 14 Bolboporites is an enigmatic Ordovician cone-shaped fossil, the precise nature and systematic affinities of 15 which have been controversial over almost two centuries. -
Pennsylvanian Crinoids of New Mexico
Pennsylvanian crinoids of New Mexico Gary D. Webster, Department of Geology, Washington State University, Pullman, WA 99164, and Barry S. Kues, Department of Earth and Planetary Sciences, University of New Mexico, Albuquerque, NM 87131 Abstract north of Alamogordo; (2) Morrowan and groups present on the outcrop were sam- Atokan specimens from the La Pasada For- pled, often repeatedly over the years. Crinoids from each of the five Pennsylvanian mation in the Santa Fe area; and (3) a mid- These collections, reposited at the Univer- epochs are described from 26 localities in dle Desmoinesian species from the Alami- sity of New Mexico (UNM), testify to the New Mexico. The crinoid faunas occupied tos Formation, north of Pecos. Bowsher rarity of identifiable crinoid cups and diverse shelf environments around many intermontane basins of New Mexico during and Strimple (1986) described 15 late crowns in these assemblages, even in cases the Pennsylvanian. The crinoids described Desmoinesian or early Missourian crinoid where crinoid stem elements are common. here include 29 genera, 39 named species, species (several not named) from near the In nearly all collections, crinoid cups rep- and at least nine unnamed species, of which top of the Bug Scuffle Member of the Gob- resent only a small fraction of 1% of the one genus and 15 named species are new. bler Formation south of Alamogordo in the total identifiable specimens. The only This report more than doubles the number of Sacramento Mountains. Kietzke (1990) exception is the fauna from the Missourian previously known Pennsylvanian crinoid illustrated a Desmoinesian microcrinoid Sol se Mete Member, Wild Cow Formation, species from New Mexico; 17 of these species from the Flechado Formation near Talpa. -
OVERVIEW of the BEDROCK GEOLOGY of NORTHWEST IOWA by Brian J
Iowa DNR Geological Survey Bureau 109 Trowbridge Hall Iowa City IA 52252-1319 Phone: 319-335-1575 http://www.igsb.uiowa.edu OVERVIEW OF THE BEDROCK GEOLOGY OF NORTHWEST IOWA by Brian J. Witzke Iowa Department of Natural Resources Geological Survey Bureau May 1997 INTRODUCTION The region encompassed by the northwest Iowa bedrock geologic map includes the 19- county area generally north of latitude 42° 13’ N and west of longitude 93° 58’ W. Bedrock across most of the map area is mantled by a cover of Quaternary sediments, primarily glacial till, alluvium, and loess. The Quaternary cover typically ranges in thickness between about 100 to 400 feet (30 to 120 m) across most of the map area, and locally reaches thicknesses in excess of 500 feet (150 m) within the deeper parts of some bedrock channels. Bedrock exposure is limited to only scattered small areas in the map region. These include Cretaceous exposures scattered along the lower bluffs and adjacent tributaries of the Big Sioux and Missouri River Valleys in western Woodbury and Plymouth counties (e.g., Witzke and Ludvigson, 1987). Small areas of Cretaceous bedrock exposure are also noted at (1) Grant City, southeast Sac County, (2) Camp Quest near LeMars, Plymouth County, and (3) shale outcrop near the margin of the Manson Impact Structure along Lizard Creek in northwestern Webster County (Hartung and Anderson, 1996, p. 33). Significant exposures of Jurassic, Pennsylvanian, and Mississippian strata crop out in portions of the Des Moines River drainage of Webster and Humboldt counties. Economically important Mississippian limestone strata (Gilmore City Formation) are exposed near Gilmore City in eastern Pocahontas County (Woodson, 1989). -
Some Crinoids from the Argentine Limestone (Late Pennsylvania- Missourian) of Southeastern Nebraska and Southwestern Iowa
University of Nebraska - Lincoln DigitalCommons@University of Nebraska - Lincoln Transactions of the Nebraska Academy of Sciences and Affiliated Societies Nebraska Academy of Sciences 1980 Some Crinoids from the Argentine Limestone (Late Pennsylvania- Missourian) of Southeastern Nebraska and Southwestern Iowa Roger K. Pabian University of Nebraska - Lincoln, [email protected] Harrell L. Strimple University of Iowa Follow this and additional works at: https://digitalcommons.unl.edu/tnas Part of the Life Sciences Commons Pabian, Roger K. and Strimple, Harrell L., "Some Crinoids from the Argentine Limestone (Late Pennsylvania-Missourian) of Southeastern Nebraska and Southwestern Iowa" (1980). Transactions of the Nebraska Academy of Sciences and Affiliated Societies. 288. https://digitalcommons.unl.edu/tnas/288 This Article is brought to you for free and open access by the Nebraska Academy of Sciences at DigitalCommons@University of Nebraska - Lincoln. It has been accepted for inclusion in Transactions of the Nebraska Academy of Sciences and Affiliated Societiesy b an authorized administrator of DigitalCommons@University of Nebraska - Lincoln. 1980. Transactions of the Nebraska Academy of Sciences, VIII: 155-186. SOME CRINOIDS FROM THE ARGENTINE LIMESTONE (LATE PENNSYLVANIAN-MISSOURIAN) OF SOUTHEASTERN NEBRASKA AND SOUTHWESTERN IOWA Roger K. Pabian and Harrell L. Strimple Conservation and Survey Division, Department of Geology Institute of Agriculture and Natural Resources University of Iowa University of Nebraska-Lincoln Iowa City, Iowa 52242 Lincoln, Nebraska 68588 Familial diversity of crinoids is relatively constant throughout positions in cyclothems or to provide ecological interpreta the Missourian Series of southeastern Nebraska and southwestern Iowa. tions based on cyclothemic models sensu Heckel and Baese Beginning with the deposition of the Argentine Limestone, there ap mann (1975), or Heckel (1977). -
Predation, Resistance, and Escalation in Sessile Crinoids
Predation, resistance, and escalation in sessile crinoids by Valerie J. Syverson A dissertation submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy (Geology) in the University of Michigan 2014 Doctoral Committee: Professor Tomasz K. Baumiller, Chair Professor Daniel C. Fisher Research Scientist Janice L. Pappas Professor Emeritus Gerald R. Smith Research Scientist Miriam L. Zelditch © Valerie J. Syverson, 2014 Dedication To Mark. “We shall swim out to that brooding reef in the sea and dive down through black abysses to Cyclopean and many-columned Y'ha-nthlei, and in that lair of the Deep Ones we shall dwell amidst wonder and glory for ever.” ii Acknowledgments I wish to thank my advisor and committee chair, Tom Baumiller, for his guidance in helping me to complete this work and develop a mature scientific perspective and for giving me the academic freedom to explore several fruitless ideas along the way. Many thanks are also due to my past and present labmates Alex Janevski and Kris Purens for their friendship, moral support, frequent and productive arguments, and shared efforts to understand the world. And to Meg Veitch, here’s hoping we have a chance to work together hereafter. My committee members Miriam Zelditch, Janice Pappas, Jerry Smith, and Dan Fisher have provided much useful feedback on how to improve both the research herein and my writing about it. Daniel Miller has been both a great supervisor and mentor and an inspiration to good scholarship. And to the other paleontology grad students and the rest of the department faculty, thank you for many interesting discussions and much enjoyable socializing over the last five years. -
Biostratigraphy of the Arroyo Penasco Group, Lower Carboniferous (Mississsippian), North-Central New Mexico Augustus K
New Mexico Geological Society Downloaded from: http://nmgs.nmt.edu/publications/guidebooks/25 Biostratigraphy of the Arroyo Penasco Group, Lower Carboniferous (Mississsippian), north-central New Mexico Augustus K. Armstrong and Bernard L. Mamet, 1974, pp. 145-158 in: Ghost Ranch, Siemers, C. T.; Woodward, L. A.; Callender, J. F.; [eds.], New Mexico Geological Society 25th Annual Fall Field Conference Guidebook, 404 p. This is one of many related papers that were included in the 1974 NMGS Fall Field Conference Guidebook. Annual NMGS Fall Field Conference Guidebooks Every fall since 1950, the New Mexico Geological Society (NMGS) has held an annual Fall Field Conference that explores some region of New Mexico (or surrounding states). Always well attended, these conferences provide a guidebook to participants. Besides detailed road logs, the guidebooks contain many well written, edited, and peer-reviewed geoscience papers. These books have set the national standard for geologic guidebooks and are an essential geologic reference for anyone working in or around New Mexico. Free Downloads NMGS has decided to make peer-reviewed papers from our Fall Field Conference guidebooks available for free download. Non-members will have access to guidebook papers two years after publication. Members have access to all papers. This is in keeping with our mission of promoting interest, research, and cooperation regarding geology in New Mexico. However, guidebook sales represent a significant proportion of our operating budget. Therefore, only research papers are available for download. Road logs, mini-papers, maps, stratigraphic charts, and other selected content are available only in the printed guidebooks. Copyright Information Publications of the New Mexico Geological Society, printed and electronic, are protected by the copyright laws of the United States. -
A Cladistic Analysis and Taxonomic Revision of the Plesiosauria (Reptilia: Sauropterygia) F
Marshall University Marshall Digital Scholar Biological Sciences Faculty Research Biological Sciences 12-2001 A Cladistic Analysis and Taxonomic Revision of the Plesiosauria (Reptilia: Sauropterygia) F. Robin O’Keefe Marshall University, [email protected] Follow this and additional works at: http://mds.marshall.edu/bio_sciences_faculty Part of the Aquaculture and Fisheries Commons, and the Other Animal Sciences Commons Recommended Citation Frank Robin O’Keefe (2001). A cladistic analysis and taxonomic revision of the Plesiosauria (Reptilia: Sauropterygia). ). Acta Zoologica Fennica 213: 1-63. This Article is brought to you for free and open access by the Biological Sciences at Marshall Digital Scholar. It has been accepted for inclusion in Biological Sciences Faculty Research by an authorized administrator of Marshall Digital Scholar. For more information, please contact [email protected], [email protected]. Acta Zool. Fennica 213: 1–63 ISBN 951-9481-58-3 ISSN 0001-7299 Helsinki 11 December 2001 © Finnish Zoological and Botanical Publishing Board 2001 A cladistic analysis and taxonomic revision of the Plesiosauria (Reptilia: Sauropterygia) Frank Robin O’Keefe Department of Anatomy, New York College of Osteopathic Medicine, Old Westbury, New York 11568, U.S.A Received 13 February 2001, accepted 17 September 2001 O’Keefe F. R. 2001: A cladistic analysis and taxonomic revision of the Plesio- sauria (Reptilia: Sauropterygia). — Acta Zool. Fennica 213: 1–63. The Plesiosauria (Reptilia: Sauropterygia) is a group of Mesozoic marine reptiles known from abundant material, with specimens described from all continents. The group originated very near the Triassic–Jurassic boundary and persisted to the end- Cretaceous mass extinction. This study describes the results of a specimen-based cladistic study of the Plesiosauria, based on examination of 34 taxa scored for 166 morphological characters. -
Athenacrinus N. Gen. and Other Early Echinoderm Taxa Inform Crinoid Origin and Arm Evolution
Journal of Paleontology, 94(2), 2020, p. 311–333 Copyright © 2019, The Paleontological Society. This is an Open Access article, distributed under the terms of the Creative Commons Attribution licence (http://creativecommons.org/ licenses/by/4.0/), which permits unrestricted re-use, distribution, and reproduction in any medium, provided the original work is properly cited. 0022-3360/20/1937-2337 doi: 10.1017/jpa.2019.87 Athenacrinus n. gen. and other early echinoderm taxa inform crinoid origin and arm evolution Thomas E. Guensburg,1 James Sprinkle,2 Rich Mooi,3 Bertrand Lefebvre,4 Bruno David,5,6 Michel Roux,7 and Kraig Derstler8 1IRC, Field Museum, 1400 South Lake Shore Drive, Chicago, Illinois 60605, USA <tguensburg@fieldmuseum.org> 2Department of Geological Sciences, Jackson School of Geosciences, University of Texas, 1 University Station C1100, Austin, Texas 78712-0254, USA <[email protected]> 3Department of Invertebrate Zoology, California Academy of Sciences, 55 Music Concourse Drive, San Francisco, California 94118, USA <[email protected]> 4UMR 5276 LGLTPE, Université Claude Bernard, Lyon 1, France <[email protected]> 5Muséum National d’Histoire Naturelle, Paris, France <[email protected]> 6UMR CNRS 6282 Biogéosciences, Université de Bourgogne Franche-Comté, 21000 Dijon, France <[email protected]> 7Muséum National d’Histoire Naturelle, UMR7205 ISYEB MNHN-CNRS-UMPC-EPHE, Département Systématique et Évolution, CP 51, 57 Rue Cuvier, 75231 Paris Cedex 05, France <[email protected]> 8Department of Earth and Environmental Studies, University of New Orleans, 2000 Lake Shore Drive, New Orleans, Louisiana 70148, USA <[email protected]> Abstract.—Intermediate morphologies of a new fossil crinoid shed light on the pathway by which crinoids acquired their distinctive arms. -
On a New Ichthyosaur of the Genus Undorosaurus
Proceedings of the Zoological Institute RAS Vol. 318, No. 3, 2014, рр. 187–196 УДК 568.152 ON A NEW ICHTHYOSAUR OF THE GENUS UNDOROSAURUS M.S. Arkhangelsky1, 2* and N.G. Zverkov3 1Saratov State Technical University, Politekhnicheskaya St. 77, 410054 Saratov, Russia 2Saratov State University, Astrakhanskaya St. 83, 410012 Saratov, Russia, e-mail: [email protected] 3Lomonosov Moscow State University, Leninskie Gory 1, 119991 Moscow, Russia; e-mail: [email protected] ABSTRACT A new species of ichthyosaur genus Undorosaurus from the Volgian stage of Moscow is described based on an incomplete forelimb. It differs from congeners basically in the form and position of pisiforme. With the application of cladistic method the phylogenetic position of two genera Undorosaurus and Paraophthalmosaurus in the system of Ichthyosauridae is defined. Both taxa are referred to the clade Ophthalmosaurinae. Key words: ichthyosaurs, Jurassic, phylogeny, Undorosaurus О НОВОМ ПРЕДСТАВИТЕЛЕ ИХТИОЗАВРОВ РОДА UNDOROSAURUS М.С. Архангельский1, 2* и Н.Г. Зверьков3 1Саратовский государственный технический университет, ул. Политехническая 77, 410054 Саратов, Россия 2Саратовский государственный университет, ул. Астраханская 83, 410012 Саратов, Россия; e-mail: [email protected] 3Московский государственный университет, Ленинские горы 1, 119991 Москва, Россия; e-mail: [email protected] РЕЗЮМЕ По неполной передней конечности описан новый вид ихтиозавра рода Undorosaurus из волжских отложений г. Москвы. Он отличается от других представителей рода, главным образом, формой и расположением горо- ховидной гости. С применением кладистических методов определено филогенетическое положение родов Undorosaurus и Paraophthalmosaurus в системе ихтиозаврид. Оба рода отнесены к кладе Ophthalmosaurinae. Ключевые слова: ихтиозавры, юра, филогения, Undorosaurus INTRODUCTION known, but are usually represented by isolated bones and tooth crowns.