Determining the Ontogenetic Variation of Lower Cheek Teeth Occlusal Surface Patterns in Lagomorphs Using Micro-Ct Technology
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Paleoenvironment of the Late Eocene Chadronian-Age Whitehead Creek Locality (Northwestern Nebraska)
St. Cloud State University theRepository at St. Cloud State Culminating Projects in Cultural Resource Management Department of Anthropology 10-2019 Paleoenvironment of the Late Eocene Chadronian-Age Whitehead Creek Locality (Northwestern Nebraska) Samantha Mills Follow this and additional works at: https://repository.stcloudstate.edu/crm_etds Part of the Archaeological Anthropology Commons Recommended Citation Mills, Samantha, "Paleoenvironment of the Late Eocene Chadronian-Age Whitehead Creek Locality (Northwestern Nebraska)" (2019). Culminating Projects in Cultural Resource Management. 28. https://repository.stcloudstate.edu/crm_etds/28 This Thesis is brought to you for free and open access by the Department of Anthropology at theRepository at St. Cloud State. It has been accepted for inclusion in Culminating Projects in Cultural Resource Management by an authorized administrator of theRepository at St. Cloud State. For more information, please contact [email protected]. Paleoenvironment of the Late Eocene Chadronian-Age Whitehead Creek Locality (Northwestern Nebraska) by Samantha M. Mills A Thesis Submitted to the Graduate Faculty of St. Cloud State University in Partial Fulfillment of the Requirements for the Degree of Master of Science in Functional Morphology October, 2019 Thesis Committee: Matthew Tornow, Chairperson Mark Muñiz Bill Cook Tafline Arbor 2 Abstract Toward the end of the Middle Eocene (40-37mya), the environment started to decline on a global scale. It was becoming more arid, the tropical forests were disappearing from the northern latitudes, and there was an increase in seasonality. Research of the Chadronian (37- 33.7mya) in the Great Plains region of North America has documented the persistence of several mammalian taxa (e.g. primates) that are extinct in other parts of North America. -
6-3 Korth 2007A
Paludicola 6(3):111-117 October 2007 © by the Rochester Institute of Vertebrate Paleontology MAMMALS FROM THE BLUE ASH LOCAL FAUNA (LATE OLIGOCENE), SOUTH DAKOTA, MARSUPIALIA AND LAGOMORPHA William W. Korth Rochester Institute of Vertebrate Paleontology, 265 Carling Road, Rochester, New York 14610 ABSTRACT Two marsupials (Herpetotherium fugax and Herpetotherium sp.) and three lagomorphs (Palaeolagus subhypsodus n. sp., Palaeolagus sp. cf. P. philoi, and Palaeolagus sp.) are identified from the Blue Ash local fauna of South Dakota. Of the species identified here, H. fugax is otherwise known from the Orellan to early Arikareean, Herpetotherium sp. is morphologically closest to the middle to late Arikareean H. youngi but is smaller in size, Palaeolagus subhypsodus is intermediate between the Whitneyan P. burkei and the Arikareean P. hypsodus, and the other lagomorphs are closest to Arikareean species morphologically. The age of the fauna is still not definite based on these species but it is suggested that it is slightly earlier than previously described Arikareean faunas. INTRODUCTION increases the number of formally described taxa from the fauna that can potentially help in the determination To date, only rodent species have been formally of the biochronologic age of the fauna. recognized from the Blue Ash local fauna (Martin, Dental nomenclature for marsupials is from 1974; Korth, 2007, in press; Emry and Korth, in press). Crochet (1980); that for lagomorphs is from White Earlier preliminary faunal lists presented by Martin (1987) for P2 and p3, and Dawson (1958) for the (1974) and Simpson (1985) included all of the molariform cheek teeth. Capital letters (e.g., M1) mammalian species present. -
Aplodontid, Sciurid, Castorid, Zapodid and Geomyoid Rodents of the Rodent Hill Locality, Cypress Hills Formation, Southwest Saskatchewan
APLODONTID, SCIURID, CASTORID, ZAPODID AND GEOMYOID RODENTS OF THE RODENT HILL LOCALITY, CYPRESS HILLS FORMATION, SOUTHWEST SASKATCHEWAN A Thesis Submitted to the College of Graduate Studies and Research in Partial Fulfillment of the Requirements for the Degree of Master of Science in the Department of Geological Sciences University of Saskatchewan Saskatoon By Sean D. Bell © Copyright Sean D. Bell, December 2004. All rights reserved. PERMISSION TO USE In presenting this thesis in partial fulfilment of the requirements for a Master’s degree from the University of Saskatchewan, I agree that the libraries of the University of Saskatchewan may make it freely available for inspection. I further agree that permission for copying of this thesis in any manner, in whole or in part, for scholarly purposes may be granted by the professors who supervised my thesis work or, in their absence, by the Head of the Department of Geological Sciences or the Dean of the College of Graduate Studies and Research. It is understood that any copying or publication or use of this thesis or parts thereof for financial gain shall not be allowed without my written permission. It is also understood that due recognition shall be given to me and to the University of Saskatchewan in any scholarly use which may be made of any material in my thesis. Requests for permission to copy or to make other use of material in this thesis in whole or part should be addressed to: Head of the Department of Geological Sciences 114 Science Place University of Saskatchewan Saskatoon, Saskatchewan S7N 5E2 i ABSTRACT The Rodent Hill Locality is a fossil-bearing site that is part of the Cypress Hills Formation, and is located roughly 15 km northwest of the town of Eastend, Saskatchewan. -
2014BOYDANDWELSH.Pdf
Proceedings of the 10th Conference on Fossil Resources Rapid City, SD May 2014 Dakoterra Vol. 6:124–147 ARTICLE DESCRIPTION OF AN EARLIEST ORELLAN FAUNA FROM BADLANDS NATIONAL PARK, INTERIOR, SOUTH DAKOTA AND IMPLICATIONS FOR THE STRATIGRAPHIC POSITION OF THE BLOOM BASIN LIMESTONE BED CLINT A. BOYD1 AND ED WELSH2 1Department of Geology and Geologic Engineering, South Dakota School of Mines and Technology, Rapid City, South Dakota 57701 U.S.A., [email protected]; 2Division of Resource Management, Badlands National Park, Interior, South Dakota 57750 U.S.A., [email protected] ABSTRACT—Three new vertebrate localities are reported from within the Bloom Basin of the North Unit of Badlands National Park, Interior, South Dakota. These sites were discovered during paleontological surveys and monitoring of the park’s boundary fence construction activities. This report focuses on a new fauna recovered from one of these localities (BADL-LOC-0293) that is designated the Bloom Basin local fauna. This locality is situated approximately three meters below the Bloom Basin limestone bed, a geographically restricted strati- graphic unit only present within the Bloom Basin. Previous researchers have placed the Bloom Basin limestone bed at the contact between the Chadron and Brule formations. Given the unconformity known to occur between these formations in South Dakota, the recovery of a Chadronian (Late Eocene) fauna was expected from this locality. However, detailed collection and examination of fossils from BADL-LOC-0293 reveals an abundance of specimens referable to the characteristic Orellan taxa Hypertragulus calcaratus and Leptomeryx evansi. This fauna also includes new records for the taxa Adjidaumo lophatus and Brachygaulus, a biostratigraphic verifica- tion for the biochronologically ambiguous taxon Megaleptictis, and the possible presence of new leporid and hypertragulid taxa. -
A New Leporine (Lagomorpha: Leporidae) from Wisconsinan Deposits of the Chihuahuan Desert
A NEW LEPORINE (LAGOMORPHA: LEPORIDAE) FROM WISCONSINAN DEPOSITS OF THE CHIHUAHUAN DESERT BRETT D. RUSSELL AND ARTHUR H. HARRIS Laboratory for Environmental Biology, University of Texas at EI Paso, EI Paso, TX 79968 ABSTRACT.-A new genus and species of rabbit is described from late Pleistocene (mid-Wis consinan) deposits of Dry Cave, southeastern New Mexico. Additional specimens are known from Anthony Cave, south-central New Mexico and adjacent Texas; V-Bar Cave, extreme southwestern New Mexico; and Jimenez Cave, southern Chihuahua, Mexico. This rabbit is characterized by its small size, nearing that of the dwarf rabbit, Sylvilagus leonensis Cushing; P, enamel pattern with similarities to that of Nekrolagus progressus (Hibbard); heavily crenulated reentrant folds on the lower dentition; long mandibular diastema with incisor terminating well anterior to P3 ; and limb proportions that imply a cursorial habit similar to that of Lepus caiijornicus. A close affinity with N. progressus is indicated by characters of P3 ; however, other features in the lower dentition could imply affinity with Eurasian taxa. The purpose of this paper is to describe a new genus and species of fossil rabbit from the Chihuahuan Desert of North America. During a series of excavations conducted between 1965 and 1971, remains of a small rabbit were recovered from mid-Wisconsinan deposits of Dry Cave, 24 km W of Carlsbad, New Mexico, at an elevation of 1,280 m (see Harris, 1970, for description of Dry Cave and the local environment). Due to insufficient material, its affinities remained a mystery until January of 1982, when further excavations uncovered the first mandibles with dentition. -
New Data on the Miocene Stem Lagomorph Eurolagus Fontannesi, and Its Northernmost Record
New data on the Miocene stem lagomorph Eurolagus fontannesi, and its northernmost record ŁUCJA FOSTOWICZ−FRELIK, ADAM NADACHOWSKI, and MAGDALENA KOWALEWSKA−GROSZKOWSKA Fostowicz−Frelik, Ł., Nadachowski, A., and Kowalewska−Groszkowska, M. 2012. New data on the Miocene stem lagomorph Eurolagus fontannesi, and its northernmost record. Acta Palaeontologica Polonica 57 (1): 1–20. We describe new dental material of Eurolagus fontannesi from the Late Miocene (Early Vallesian, MN 9) lignite beds of Bełchatów A (central Poland), which is the northernmost occurrence of this lagomorph. This material considerably in− creases the sample size of this rare genus and species. We review the systematic position of Eurolagus and argue that it is not an ochotonid, but represents a terminal taxon of an independently evolved stem lineage of Lagomorpha. The enamel of the molars, here studied for the first time, exhibits a relatively thin decussating external and a radial internal layer, and in general resembles the palaeolagine lagomorphs (Palaeolagus) rather than the archaeolagine leporids (Hypolagus)or advanced ochotonids (Ochotona). The dental wear features of Eurolagus fontannesi indicate that the species was a sylvan mixed−feeder. This agrees with the Bełchatów A paleoenvironment, which is best approximated as the kind of mixed mesophytic forest now encountered in the Caucasus, Iran, and India. The extinction of Eurolagus was probably related to the noticeable faunal change following the increased cooling of the European climate during the Late Miocene. The first indicator of this event can be observed in Bełchatów A, marked by the immigration of Microtocricetus and the absence of Neocometes. Key words: Lagomorpha, Eurolagus, microwear, paleoecology, semihypsodonty, Vallesian, Bełchatów, Poland. -
Changes in Mammalian Abundance Through the Eocene-Oligocene
University of Nebraska - Lincoln DigitalCommons@University of Nebraska - Lincoln Dissertations & Theses in Earth and Atmospheric Earth and Atmospheric Sciences, Department of Sciences Summer 7-30-2019 Changes in Mammalian Abundance Through the Eocene-Oligocene Climate Transition in the White River Group of Nebraska, USA Robert Gillham University of Nebraska - Lincoln, [email protected] Follow this and additional works at: https://digitalcommons.unl.edu/geoscidiss Part of the Oceanography and Atmospheric Sciences and Meteorology Commons, Paleobiology Commons, and the Paleontology Commons Gillham, Robert, "Changes in Mammalian Abundance Through the Eocene-Oligocene Climate Transition in the White River Group of Nebraska, USA" (2019). Dissertations & Theses in Earth and Atmospheric Sciences. 120. https://digitalcommons.unl.edu/geoscidiss/120 This Article is brought to you for free and open access by the Earth and Atmospheric Sciences, Department of at DigitalCommons@University of Nebraska - Lincoln. It has been accepted for inclusion in Dissertations & Theses in Earth and Atmospheric Sciences by an authorized administrator of DigitalCommons@University of Nebraska - Lincoln. Changes in Mammalian Abundance Through the Eocene- Oligocene Climate Transition in the White River Group of Nebraska, USA By Robert B. Gillham A THESIS Presented to the Faculty of The Graduate College at the University of Nebraska In Partial Fulfillment of Requirements For the Degree of Master of Science Major: Geosciences Under the Supervision of Professor Ross Secord Lincoln, NE August, 2019 Changes in Mammalian Abundance Through the Eocene- Oligocene Climate Transition in the White River Group of Nebraska, USA Robert B. Gillham M.S. University of Nebraska, 2019 Advisor: Ross Secord Marine records show major cooling during the Eocene-Oligocene Climate Transition (EOCT). -
A Large Mimotonid from the Middle Eocene of China Sheds Light on The
OPEN A large mimotonid from the Middle SUBJECT AREAS: Eocene of China sheds light on the PALAEONTOLOGY ZOOLOGY evolution of lagomorphs and their kin Łucja Fostowicz-Frelik1*, Chuankui Li1, Fangyuan Mao1, Jin Meng2 & Yuanqing Wang1 Received 28 September 2014 1Key Laboratory of Vertebrate Evolution and Human Origins, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Accepted Academy of Sciences, Beijing 100044, People’s Republic of China, 2Division of Paleontology, American Museum of Natural 27 February 2015 History, Central Park West at 79th Street, New York, NY 10024, USA. Published 30 March 2015 Mimotonids share their closest affinity with lagomorphs and were a rare and endemic faunal element of Paleogene mammal assemblages of central Asia. Here we describe a new species, Mimolagus aurorae from the Middle Eocene of Nei Mongol (China). This species belongs to one of the most enigmatic genera of fossil Glires, previously known only from the type and only specimen from the early Oligocene of Gansu (China). Correspondence and Our finding extends the earliest occurrence of the genus by at least 10 million years in the Paleogene of Asia, requests for materials which closes the gap between Mimolagus and other mimotonids that are known thus far from middle should be addressed to Eocene or older deposits. The new species is one of the largest known pre-Oligocene Glires. As regards Ł. F.-F(lfost@twarda. duplicidentates, Mimolagus is comparable with the largest Neogene continental leporids, namely hares of the genus Lepus. Our results suggest that ecomorphology of this species was convergent on that of small pan.pl) perissodactyls that dominated faunas of the Mongolian Plateau in the Eocene, and probably a result of competitive pressure from other Glires, including a co-occurring mimotonid, Gomphos. -
Proceedings of the Tenth Conference on Fossil Resources May 13-15, 2014 Rapid City, South Dakota
PROCEEDINGS OF THE TENTH CONFERENCE ON FOSSIL RESOURCES May 13-15, 2014 Rapid City, South Dakota Edited by Vincent L. Santucci, Gregory A. Liggett, Barbara A. Beasley, H. Gregory McDonald and Justin Tweet Dakoterra Vol. 6 Eocene-Oligocene rocks in Badlands National Park, South Dakoata. Table of Contents Dedication ....................................................................................8 Introduction ..................................................................................9 Presentation Abstracts *Preserving THE PYGMY MAMMOTH: TWENTY YEARS OF collaboration BETWEEN CHANNEL ISLANDS National PARK AND THE MAMMOTH SITE OF HOT SPRINGS, S. D., INC. LARRY D. AGENBROAD, MONICA M. BUGBEE, DON P. MORRIS and W. JUSTIN WILKINS .......................10 PERMITS AND PALEONTOLOGY ON BLM COLORADO: RESULTS FROM 2009 TO 2013 HARLEY J. ARMSTRONG .....................................................................................................................................10 DEVIL’S COULEE DINOSAUR EGG SITE AND THE WILLOW CREEK HOODOOS: HOW SITE VARIABLES INFLUENCE DECISIONS MADE REGARDING PUBLIC ACCESS AND USE AT TWO DESIGNATED PROVINCIAL HISTORIC SITES IN ALBERTA, CANADA JENNIFER M. BANCESCU ...................................................................................................................................12 USDA FOREST SERVICE PALEONTOLOGY PASSPORT IN TIME PROGRAM: COST EFFECTIVE WAY TO GET FEDERAL PALEONTOLOGY PROJECTS COMPLETED BARBARA A. BEASLEY and SALLY SHELTON ...................................................................................................17 -
The Leporid Datum: a Late Miocene Biotic Marker Lawrence J
bs_bs_banner Mammal Review ISSN 0305-1838 REVIEW Mammal Review, 44(3–4):164–176, 2013 The Leporid Datum: a late Miocene biotic marker Lawrence J. FLYNN* Peabody Museum of Archaeology and Ethnology, Harvard University, Cambridge, MA 02138, USA. E-mail: ljfl[email protected] Alisa J. WINKLER Roy M. Huffington Department of Earth Sciences, Southern Methodist University, Dallas, TX 75275, USA. E-mail: [email protected] Margarita ERBAEVA Geological Institute, Siberian Branch, Russian Academy of Sciences, Ulan-Ude 670047, Russia. E-mail: [email protected] Nadia ALEXEEVA Geological Institute, Siberian Branch, Russian Academy of Sciences, Ulan-Ude 670047, Russia. E-mail: [email protected] Ulrike ANDERS Steinmann-Institut für Geologie, Mineralogie und Paläontologie, Rheinische Friedrich-Wilhelms-Universität Bonn, Nussallee 8, 53115 Bonn, Germany. E-mail: [email protected] Chiara ANGELONE Institut Català de Paleontologia Miquel Crusafont, Universitat Autònoma de Barcelona, Edifici ICP, Campus de la UAB s/n, 08193 Cerdanyola del Vallès, Barcelona, Spain. E-mail: [email protected] Stanislav Cˇ ERMÁK Institute of Geology AS CR, v. v. i., Laboratory Paleobiology and Paleoecology, Rozvojová 269, CZ–165 00 Prague6–Lysolaje, Czech Republic. E-mail: [email protected] Florian A. FLADERER Institute of Oriental and European Archaeology, Austrian Academy of Sciences, 1010 Vienna, Austria, and Department of Palaeontology, University of Vienna, Althanstrasse 14, 1090 Vienna, Austria. E-mail: florian.fl[email protected] Brian KRAATZ Western University, 309 E. Second Street, Pomona, CA 91766, USA. E-mail: [email protected] Luis A. RUEDAS Museum of Vertebrate Biology, Portland State University, SRTC-246, Portland, OR 97207-0751, USA. -
Vertebrate Paleontology of Montana
VERTEBRATE PALEONTOLOGY OF MONTANA John R. Horner1 and Dale A. Hanson2 1Chapman University, Orange, California; Montana State University, Bozeman, Montana 2South Dakota School of Mines & Technology, Rapid City, South Dakota (1) INTRODUCTION derived concerning the evolution, behavior, and paleo- Montana is renowned for its rich paleontological ecology of vertebrate fossil taxa from Montana. treasures, particularly those of vertebrate animals All Paleozoic vertebrates from Montana come such as fi shes, dinosaurs, and mammals. For exam- from marine sediments, whereas the Mesozoic as- ple, the most speciose fi sh fauna in the world comes semblages are derived from transgressive–regressive from Fergus County. The fi rst dinosaur remains noted alternating marine and freshwater deposits, and the from the western hemisphere came from an area near Cenozoic faunas are derived strictly from freshwater the mouth of the Judith River in what would become terrestrial environments. Fergus County. The fi rst Tyrannosaurus rex skeleton, (2) PALEOZOIC VERTEBRATES and many more since, have come from Garfi eld and McCone Counties. The fi rst dinosaur recognized to Two vertebrate assemblages are known from the show the relationship between dinosaurs and birds Paleozoic, one of Early Devonian age, and the other of came from Carbon County, and the fi rst dinosaur eggs, Late Mississippian age. embryos, and nests revealing dinosaur social behav- a. Early Devonian (Emsian: 407–397 Ma) iors were found in Teton County. The fi rst dinosaur Beartooth Butte Formation confi rmed to have denned in burrows was found in The oldest vertebrate remains found in Montana Beaverhead County. come from the Beartooth Butte Formation exposed Although Montana is not often thought of for in the Big Belt and Big Snowy Mountains of central mammal fossils, a great diversity of late Mesozoic Montana. -
Newsletter Number 59
The Palaeontology Newsletter Contents 59 Association Business 2 Palaeobiological illustrations: advert 17 News 18 Association Meetings 20 Natural History Museum: meeting advert 25 From our correspondents Skeletal Biology in evo-devo lab 26 Things ain’t what they used to be 34 Meeting a nemertean Nemesis 37 Palaeo-math 101: PCA 44 The Palaeontographical Society: advert 58 Obituaries: Stuart McKerrow 60 Georges Ubaghs 63 Mysterious Fossils 66 Meeting Reports 68 Future meetings of other bodies 80 Sylvester-Bradley Reports 93 Book Reviews 115 Discounts for PalAss members 133 Special Papers in Palaeontology no. 73 134 Palaeontologia Electronica 7,2 and 8,1 136 Palaeontology vol 48 parts 3 & 4 140 Reminder: The deadline for copy for Issue no 60 is 14th October 2005. On the Web: <http://palass.org/> ISSN: 0954-9900 Newsletter 59 2 Association Business The Palaeontological Association: Draft Annual Report for 2004 Nature of the Association. The Palaeontological Association is a Charity registered in England, Charity Number 276369. Its Governing Instrument is the Constitution adopted on 27th February 1957, amended on subsequent occasions as recorded in the Council Minutes. Trustees (Council Members) are elected by vote of the Membership at the Annual General Meeting. The contact address of the Association is c/o The Executive Officer, Dr T.J. Palmer, Institute of Geography and Earth Sciences, University of Wales, Aberystwyth, SY23 3DB, Wales, UK. Membership & subscriptions. Individual membership totalled 1,288 on 31st December 2004, an overall increase of 53 over the 2003 figure. There were 791 Ordinary Members, an increase of 36; 158 Retired Members, an increase of 18; 340 Student Members, a decrease of one; and one honorary member.