ZOOLOGY Exploring the Biodiversity of Colorado and Theworld
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JVP 26(3) September 2006—ABSTRACTS
Neoceti Symposium, Saturday 8:45 acid-prepared osteolepiforms Medoevia and Gogonasus has offered strong support for BODY SIZE AND CRYPTIC TROPHIC SEPARATION OF GENERALIZED Jarvik’s interpretation, but Eusthenopteron itself has not been reexamined in detail. PIERCE-FEEDING CETACEANS: THE ROLE OF FEEDING DIVERSITY DUR- Uncertainty has persisted about the relationship between the large endoskeletal “fenestra ING THE RISE OF THE NEOCETI endochoanalis” and the apparently much smaller choana, and about the occlusion of upper ADAM, Peter, Univ. of California, Los Angeles, Los Angeles, CA; JETT, Kristin, Univ. of and lower jaw fangs relative to the choana. California, Davis, Davis, CA; OLSON, Joshua, Univ. of California, Los Angeles, Los A CT scan investigation of a large skull of Eusthenopteron, carried out in collaboration Angeles, CA with University of Texas and Parc de Miguasha, offers an opportunity to image and digital- Marine mammals with homodont dentition and relatively little specialization of the feeding ly “dissect” a complete three-dimensional snout region. We find that a choana is indeed apparatus are often categorized as generalist eaters of squid and fish. However, analyses of present, somewhat narrower but otherwise similar to that described by Jarvik. It does not many modern ecosystems reveal the importance of body size in determining trophic parti- receive the anterior coronoid fang, which bites mesial to the edge of the dermopalatine and tioning and diversity among predators. We established relationships between body sizes of is received by a pit in that bone. The fenestra endochoanalis is partly floored by the vomer extant cetaceans and their prey in order to infer prey size and potential trophic separation of and the dermopalatine, restricting the choana to the lateral part of the fenestra. -
The Phylogenetic Position of Ambiortus: Comparison with Other Mesozoic Birds from Asia1 J
ISSN 00310301, Paleontological Journal, 2013, Vol. 47, No. 11, pp. 1270–1281. © Pleiades Publishing, Ltd., 2013. The Phylogenetic Position of Ambiortus: Comparison with Other Mesozoic Birds from Asia1 J. K. O’Connora and N. V. Zelenkovb aKey Laboratory of Evolution and Systematics, Institute of Vertebrate Paleontology and Paleoanthropology, 142 Xizhimenwai Dajie, Beijing China 10044 bBorissiak Paleontological Institute, Russian Academy of Sciences, Profsoyuznaya ul. 123, Moscow, 117997 Russia email: [email protected], [email protected] Received August 6, 2012 Abstract—Since the last description of the ornithurine bird Ambiortus dementjevi from Mongolia, a wealth of Early Cretaceous birds have been discovered in China. Here we provide a detailed comparison of the anatomy of Ambiortus relative to other known Early Cretaceous ornithuromorphs from the Chinese Jehol Group and Xiagou Formation. We include new information on Ambiortus from a previously undescribed slab preserving part of the sternum. Ambiortus is superficially similar to Gansus yumenensis from the Aptian Xiagou Forma tion but shares more morphological features with Yixianornis grabaui (Ornithuromorpha: Songlingorni thidae) from the Jiufotang Formation of the Jehol Group. In general, the mosaic pattern of character distri bution among early ornithuromorph taxa does not reveal obvious relationships between taxa. Ambiortus was placed in a large phylogenetic analysis of Mesozoic birds, which confirms morphological observations and places Ambiortus in a polytomy with Yixianornis and Gansus. Keywords: Ornithuromorpha, Ambiortus, osteology, phylogeny, Early Cretaceous, Mongolia DOI: 10.1134/S0031030113110063 1 INTRODUCTION and articulated partial skeleton, preserving several cervi cal and thoracic vertebrae, and parts of the left thoracic Ambiortus dementjevi Kurochkin, 1982 was one of girdle and wing (specimen PIN, nos. -
The World at the Time of Messel: Conference Volume
T. Lehmann & S.F.K. Schaal (eds) The World at the Time of Messel - Conference Volume Time at the The World The World at the Time of Messel: Puzzles in Palaeobiology, Palaeoenvironment and the History of Early Primates 22nd International Senckenberg Conference 2011 Frankfurt am Main, 15th - 19th November 2011 ISBN 978-3-929907-86-5 Conference Volume SENCKENBERG Gesellschaft für Naturforschung THOMAS LEHMANN & STEPHAN F.K. SCHAAL (eds) The World at the Time of Messel: Puzzles in Palaeobiology, Palaeoenvironment, and the History of Early Primates 22nd International Senckenberg Conference Frankfurt am Main, 15th – 19th November 2011 Conference Volume Senckenberg Gesellschaft für Naturforschung IMPRINT The World at the Time of Messel: Puzzles in Palaeobiology, Palaeoenvironment, and the History of Early Primates 22nd International Senckenberg Conference 15th – 19th November 2011, Frankfurt am Main, Germany Conference Volume Publisher PROF. DR. DR. H.C. VOLKER MOSBRUGGER Senckenberg Gesellschaft für Naturforschung Senckenberganlage 25, 60325 Frankfurt am Main, Germany Editors DR. THOMAS LEHMANN & DR. STEPHAN F.K. SCHAAL Senckenberg Research Institute and Natural History Museum Frankfurt Senckenberganlage 25, 60325 Frankfurt am Main, Germany [email protected]; [email protected] Language editors JOSEPH E.B. HOGAN & DR. KRISTER T. SMITH Layout JULIANE EBERHARDT & ANIKA VOGEL Cover Illustration EVELINE JUNQUEIRA Print Rhein-Main-Geschäftsdrucke, Hofheim-Wallau, Germany Citation LEHMANN, T. & SCHAAL, S.F.K. (eds) (2011). The World at the Time of Messel: Puzzles in Palaeobiology, Palaeoenvironment, and the History of Early Primates. 22nd International Senckenberg Conference. 15th – 19th November 2011, Frankfurt am Main. Conference Volume. Senckenberg Gesellschaft für Naturforschung, Frankfurt am Main. pp. 203. -
Curriculum Vitae Bradley Evan Carlson, Ph.D
Curriculum Vitae Bradley Evan Carlson, Ph.D. Byron K. Trippet Assistant Professor of Biology Wabash College Crawfordsville, IN 47933 Email: [email protected] Telephone: (765) 361-6460 Website: carlsonecolab.weebly.com Professional Experience 2014 - present Byron K. Trippet Assistant Professor of Biology, Wabash College Education 2009-2014 PhD in Ecology, minor in Statistics, The Pennsylvania State University, University Park, PA Advisor: Dr. Tracy Langkilde Dissertation: The evolutionary ecology of intraspecific trait variation in larval amphibians 2008 B.S. in Biology, Bethel University, St. Paul, MN Summa cum laude, Honors Graduate Thesis: Temperature and desiccation effects on the antipredator behavior of Centruroides vittatus (Scorpiones: Buthidae) Research Interests Evolutionary ecology – phenotypic diversity, local adaptation, trait integration Behavioral ecology – phenotypic plasticity, predator-prey interactions, personality traits Community ecology – trait-mediated indirect interactions, predation, aquatic ecology Zoology – herpetology, arachnology, comparative morphology Publications (*co-author was undergraduate) Kashon*, EAF, and BE Carlson. 2018. Consistently bolder turtles maintain higher body temperatures in the field but may experience greater predation risk. Behavioral Ecology and Sociobiology 72:9. Carlson, BE, and T Langkilde. 2017. Body size variation in aquatic consumers causes pervasive community effects, independent of mean body size. Ecology and Evolution 7:9978-9990. Lambert, MR, Carlson, BE, Smylie, MS, and L Swierk. 2017. Ontogeny of sexual dichromatism in the explosively breeding Wood Frog. Herpetological Conservation and Biology 12:447-456. Media coverage: InsideEcology.com (https://insideecology.com/2018/02/12/amphibians-that-change-colour/) Carlson, BE, and T Langkilde. 2016. The role of resources in microgeographic variation in Red- spotted Newt (Notophthalmus v. viridescens) morphology. Journal of Herpetology 50:442-448. -
Sexual Selection Research on Spiders: Progress and Biases
Biol. Rev. (2005), 80, pp. 363–385. f Cambridge Philosophical Society 363 doi:10.1017/S1464793104006700 Printed in the United Kingdom Sexual selection research on spiders: progress and biases Bernhard A. Huber* Zoological Research Institute and Museum Alexander Koenig, Adenauerallee 160, 53113 Bonn, Germany (Received 7 June 2004; revised 25 November 2004; accepted 29 November 2004) ABSTRACT The renaissance of interest in sexual selection during the last decades has fuelled an extraordinary increase of scientific papers on the subject in spiders. Research has focused both on the process of sexual selection itself, for example on the signals and various modalities involved, and on the patterns, that is the outcome of mate choice and competition depending on certain parameters. Sexual selection has most clearly been demonstrated in cases involving visual and acoustical signals but most spiders are myopic and mute, relying rather on vibrations, chemical and tactile stimuli. This review argues that research has been biased towards modalities that are relatively easily accessible to the human observer. Circumstantial and comparative evidence indicates that sexual selection working via substrate-borne vibrations and tactile as well as chemical stimuli may be common and widespread in spiders. Pattern-oriented research has focused on several phenomena for which spiders offer excellent model objects, like sexual size dimorphism, nuptial feeding, sexual cannibalism, and sperm competition. The accumulating evidence argues for a highly complex set of explanations for seemingly uniform patterns like size dimorphism and sexual cannibalism. Sexual selection appears involved as well as natural selection and mechanisms that are adaptive in other contexts only. Sperm competition has resulted in a plethora of morpho- logical and behavioural adaptations, and simplistic models like those linking reproductive morphology with behaviour and sperm priority patterns in a straightforward way are being replaced by complex models involving an array of parameters. -
The Endoskeletal Origin of the Turtle Carapace
ARTICLE Received 7 Dec 2012 | Accepted 3 Jun 2013 | Published 9 Jul 2013 DOI: 10.1038/ncomms3107 OPEN The endoskeletal origin of the turtle carapace Tatsuya Hirasawa1, Hiroshi Nagashima2 & Shigeru Kuratani1 The turtle body plan, with its solid shell, deviates radically from those of other tetrapods. The dorsal part of the turtle shell, or the carapace, consists mainly of costal and neural bony plates, which are continuous with the underlying thoracic ribs and vertebrae, respectively. Because of their superficial position, the evolutionary origins of these costo-neural elements have long remained elusive. Here we show, through comparative morphological and embryological analyses, that the major part of the carapace is derived purely from endos- keletal ribs. We examine turtle embryos and find that the costal and neural plates develop not within the dermis, but within deeper connective tissue where the rib and intercostal muscle anlagen develop. We also examine the fossils of an outgroup of turtles to confirm that the structure equivalent to the turtle carapace developed independently of the true osteoderm. Our results highlight the hitherto unravelled evolutionary course of the turtle shell. 1 Laboratory for Evolutionary Morphology, RIKEN Center for Developmental Biology, Kobe 650-0047, Japan. 2 Division of Gross Anatomy and Morphogenesis, Department of Regenerative and Transplant Medicine, Niigata University, Niigata 951-8510, Japan. Correspondence and requests for materials should be addressed to T.H. (email: [email protected]). NATURE COMMUNICATIONS | 4:2107 | DOI: 10.1038/ncomms3107 | www.nature.com/naturecommunications 1 & 2013 Macmillan Publishers Limited. All rights reserved. ARTICLE NATURE COMMUNICATIONS | DOI: 10.1038/ncomms3107 wo types of skeletal systems are recognized in vertebrates, exoskeletal components into the costal and neural plates (Fig. -
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Chronology and Faunal Evolution of the Middle Eocene Bridgerian North American Land Mammal “Age”: Achieving High Precision Geochronology Kaori Tsukui Submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy in the Graduate School of Arts and Sciences COLUMBIA UNIVERSITY 2016 © 2015 Kaori Tsukui All rights reserved ABSTRACT Chronology and Faunal Evolution of the Middle Eocene Bridgerian North American Land Mammal “Age”: Achieving High Precision Geochronology Kaori Tsukui The age of the Bridgerian/Uintan boundary has been regarded as one of the most important outstanding problems in North American Land Mammal “Age” (NALMA) biochronology. The Bridger Basin in southwestern Wyoming preserves one of the best stratigraphic records of the faunal boundary as well as the preceding Bridgerian NALMA. In this dissertation, I first developed a chronological framework for the Eocene Bridger Formation including the age of the boundary, based on a combination of magnetostratigraphy and U-Pb ID-TIMS geochronology. Within the temporal framework, I attempted at making a regional correlation of the boundary-bearing strata within the western U.S., and also assessed the body size evolution of three representative taxa from the Bridger Basin within the context of Early Eocene Climatic Optimum. Integrating radioisotopic, magnetostratigraphic and astronomical data from the early to middle Eocene, I reviewed various calibration models for the Geological Time Scale and intercalibration of 40Ar/39Ar data among laboratories and against U-Pb data, toward the community goal of achieving a high precision and well integrated Geological Time Scale. In Chapter 2, I present a magnetostratigraphy and U-Pb zircon geochronology of the Bridger Formation from the Bridger Basin in southwestern Wyoming. -
Kirill Glebovich Mikhailov: on the Occasion of His 60Th Birthday
Zootaxa 5006 (1): 006–012 ISSN 1175-5326 (print edition) https://www.mapress.com/j/zt/ Biography ZOOTAXA Copyright © 2021 Magnolia Press ISSN 1175-5334 (online edition) https://doi.org/10.11646/zootaxa.5006.1.4 http://zoobank.org/urn:lsid:zoobank.org:pub:B883A8B0-F324-400F-B670-304511C53963 Kirill Glebovich Mikhailov: On the occasion of his 60th Birthday YURI M. MARUSIK1 & VICTOR FET2 1Institute for Biological Problems of the North, Portovaya Street 18, Magadan 685000, Russia Department of Zoology & Entomology, University of the Free State, Bloemfontein 9300, South Africa [email protected]; https://orcid.org/0000-0002-4499-5148 2Department of Biological Sciences, Marshall University, Huntington, West Virginia 25755-2510, USA [email protected]; https://orcid.org/0000-0002-1016-600X Kirill Glebovich Mikhailov was born on 29 July 1961 in Moscow, Russia. Both of his parents, Gleb K. Mikhailov (1929–2021) and Galina R. Mikhailova (1926–2019), were research scientists. Kirill’s father was an expert in the history of mechanics, and mother, a biologist. Since early childhood Kirill was raised mainly by his maternal grandparents, Ro- man P. Nosov and Antonina V. Nosova. Kirill’s grandfather, a CPSU official and a career administrator at the Ministry of Energetics, retired from his post in 1965 to take care of the grandson. Kirill’s grandmother, an obstetrician by profession, received disability at a military plant during the WWII in evacuation, and was a housewife after the war. In 1978, Kirill began his studies at the Division of Biology (Biologicheskii Fakul’tet) of the Moscow State University (below, MSU). Even earlier, as a schoolboy, Kirill used to buy books on zoology, especially separate issues of the Fauna of the USSR and Keys to the Fauna of the USSR, then relatively cheap and available. -
Rocky Mountain U.S
National Park Service Rocky Mountain U.S. Department of the Interior Rocky Mountain National Park Wild Basin Area Summer Trail Guide Welcome to Wild Basin. Rich in wildlife and scenery, this deep valley has flowing rivers, roaring waterfalls, and sparkling lakes rimmed by remote, jagged peaks. Tips for a Narrow Road, Limited Parking Watch the Weather: It Changes Quickly! Great Hike Wild Basin Road is gravel and often narrows to Thunderstorms are common in summer and one lane. It isn’t suitable for large vehicles like are dangerous. Plan your day to be below RVs. Park only in designated areas. Don’t park treeline by early afternoon. If you see building in wide spots in the road, which let oncoming storm clouds, head back to the trailhead. If cars pass each other. Violators may be ticketed caught in a lightning storm, get below treeline. or towed. Always carry storm gear, even if the sky is clear You Must Properly Store Food Items at when you start your hike. Trailheads and Wilderness Campsites Improperly stored food items attract wildlife, It might be summer, but expect snow, gusty including black bears, which can visit any time winds, and cold temperatures at any time. of day. Food items are food, drinks, toiletries, Carry layers of windproof clothing. If the cosmetics, pet food and bowls, and odiferous weather turns, you’ll be glad to have them. attractants. Garbage, including empty cans and food wrappers, must be stored or put in Bring the Right Gear trash or recycling bins. 3 Bring waterproof outer layers and extra lay- ers for warmth. -
SMC 136 Gazin 1958 1 1-112.Pdf
SMITHSONIAN MISCELLANEOUS COLLECTIONS VOLUME 136, NUMBER 1 Cftarlesi 3B, anb JKarp "^aux OTalcott 3^es(earcf) Jf unb A REVIEW OF THE MIDDLE AND UPPER EOCENE PRIMATES OF NORTH AMERICA (With 14 Plates) By C. LEWIS GAZIN Curator, Division of Vertebrate Paleontology United States National Museum Smithsonian Institution (Publication 4340) CITY OF WASHINGTON PUBLISHED BY THE SMITHSONIAN INSTITUTION JULY 7, 1958 THE LORD BALTIMORE PRESS, INC. BALTIMORE, MD., U. S. A. CONTENTS Page Introduction i Acknowledgments 2 History of investigation 4 Geographic and geologic occurrence 14 Environment I7 Revision of certain lower Eocene primates and description of three new upper Wasatchian genera 24 Classification of middle and upper Eocene forms 30 Systematic revision of middle and upper Eocene primates 31 Notharctidae 31 Comparison of the skulls of Notharctus and Smilodectcs z:^ Omomyidae 47 Anaptomorphidae 7Z Apatemyidae 86 Summary of relationships of North American fossil primates 91 Discussion of platyrrhine relationships 98 References 100 Explanation of plates 108 ILLUSTRATIONS Plates (All plates follow page 112) 1. Notharctus and Smilodectes from the Bridger middle Eocene. 2. Notharctus and Smilodectes from the Bridger middle Eocene. 3. Notharctus and Smilodectcs from the Bridger middle Eocene. 4. Notharctus and Hemiacodon from the Bridger middle Eocene. 5. Notharctus and Smilodectcs from the Bridger middle Eocene. 6. Omomys from the middle and lower Eocene. 7. Omomys from the middle and lower Eocene. 8. Hemiacodon from the Bridger middle Eocene. 9. Washakius from the Bridger middle Eocene. 10. Anaptomorphus and Uintanius from the Bridger middle Eocene. 11. Trogolemur, Uintasorex, and Apatcmys from the Bridger middle Eocene. 12. Apatemys from the Bridger middle Eocene. -
On Certain Portions of the Skeleton of Protostega Gigas
f %VJ*p^V;^.:H ^^BSdm^% ''Sv ; ^^v;Vv: , ^ ^fc;iS^^ BS^HK9|%^-S-r^ jftaming anb jt'alior. LIBRARY I University "of Illinois. m?; 1&:. mT"-g&K y r r * ^-v^wuiiii uiio w\ji\. mi \ji UCiUl'T^ tile * Latest Date stamped below. A i charge is made on all overdue b kS - U. of I. Library FIELD COLUMBIAN MUSEUM PUBLICATION 7. ZOOLOGICAL SERIES. VOL. i, No. 2. ON CERTAIN PORTIONS OF THE SKELETON OF PROTOSTEGA GIGAS. BY O. P. HAY, PH. D., Assistant Curator of Ichthyology. D. G. ELLIOT, F. R. S. E., Curator of Department. CHICAGO, U. S. A. November 21, 1895, ON CERTAIN PORTIONS OF THE SKELETON OF PROTOS- TEGA GIGAS COPE. O. P. HAY. The Dermochelyoid turtle, Protostega gigas, was first described by Professor E. D. Cope in Proc. Amer. Phil. Soc., 1-871, page 172, and again in the same publication in 1872, page 403. In 1875, m n ^ s ''Cretaceous Vertebrata," pp. 99-113, pis. IX-XIII, the same writer more fully described and illustrated the structure of this remarkable reptile. The materials which were in Professor Cope's hands consisted of a number of vertebrae, ten ribs, some marginal bones, certain por- tions of the skull, some limb bones, and some large plates. Of the lat- ter there were what the describer regarded as two entire and parts of one or two others. These plates he considered as belonging to the carapace, and this was supposed to be free from the ribs, as the pecu- liar carapace otDermochelys is free from the ribs of that turtle. -
Newsletter Number 77
The Palaeontology Newsletter Contents 77 Association Business 2 Association Meetings 18 News 23 Advert: National Fossil Day 27 From our correspondents Invasion of the Dinosaur 28 PalaeoMath 101: Complex outlines 36 Future meetings of other bodies 46 Meeting Report Progressive Palaeontology 2011 54 Mystery Fossil 21: update 58 Obituary Frank K. McKinney 60 Reporter: a fossiliferous Countdown 62 Graduate opportunities in palaeontology 67 Book Reviews 68 Special Papers 85: Asteroidea 83 Palaeontology vol 54 parts 3 & 4 84–85 Discounts for PalAss members 86 Reminder: The deadline for copy for Issue no 78 is 3rd November 2011. On the Web: <http://www.palass.org/> ISSN: 0954-9900 Newsletter 77 2 Association Business Annual Meeting 2011 Notification is given of the 54th Annual General Meeting and Annual Address This will be held at the University of Plymouth on 18th December 2011, following the scientific sessions. AGENDA 1. Apologies for absence 2. Minutes of the 53rd AGM, University of Ghent 3. Trustees Annual Report for 2010 4. Accounts and Balance Sheet for 2010 5. Election of Council and vote of thanks to retiring members 6. Report on Council Awards 7. Annual address DRAFT AGM MINUTES 2010 Minutes of the Annual General Meeting held on Saturday, 18th December 2010 at the University of Ghent. 1 Apologies for absence: Prof. J. C. W. Cope 2 Minutes: Agreed a correct record 3 Trustees Annual Report for 2009. Proposed by Dr L. R. M. Cocks and seconded by Prof. G. D. Sevastopoulo, the report was agreed by unanimous vote of the meeting. 4 Accounts and Balance Sheet for 2009 .