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A Basal Lithostrotian Titanosaur (Dinosauria: Sauropoda) with a Complete Skull: Implications for the Evolution and Paleobiology of Titanosauria
RESEARCH ARTICLE A Basal Lithostrotian Titanosaur (Dinosauria: Sauropoda) with a Complete Skull: Implications for the Evolution and Paleobiology of Titanosauria Rubén D. F. Martínez1*, Matthew C. Lamanna2, Fernando E. Novas3, Ryan C. Ridgely4, Gabriel A. Casal1, Javier E. Martínez5, Javier R. Vita6, Lawrence M. Witmer4 1 Laboratorio de Paleovertebrados, Universidad Nacional de la Patagonia San Juan Bosco, Comodoro Rivadavia, Chubut, Argentina, 2 Section of Vertebrate Paleontology, Carnegie Museum of Natural History, Pittsburgh, Pennsylvania, United States of America, 3 Laboratorio de Anatomía Comparada y Evolución de los Vertebrados, Museo Argentino de Ciencias Naturales, Buenos Aires, Argentina, 4 Department of Biomedical Sciences, Heritage College of Osteopathic Medicine, Ohio University, Athens, Ohio, United States of America, 5 Hospital Regional de Comodoro Rivadavia, Comodoro Rivadavia, Chubut, Argentina, 6 Resonancia Magnética Borelli, Comodoro Rivadavia, Chubut, Argentina * [email protected] OPEN ACCESS Citation: Martínez RDF, Lamanna MC, Novas FE, Ridgely RC, Casal GA, Martínez JE, et al. (2016) A Basal Lithostrotian Titanosaur (Dinosauria: Abstract Sauropoda) with a Complete Skull: Implications for the Evolution and Paleobiology of Titanosauria. PLoS We describe Sarmientosaurus musacchioi gen. et sp. nov., a titanosaurian sauropod dino- ONE 11(4): e0151661. doi:10.1371/journal. saur from the Upper Cretaceous (Cenomanian—Turonian) Lower Member of the Bajo Bar- pone.0151661 real Formation of southern Chubut Province in -
71St Annual Meeting Society of Vertebrate Paleontology Paris Las Vegas Las Vegas, Nevada, USA November 2 – 5, 2011 SESSION CONCURRENT SESSION CONCURRENT
ISSN 1937-2809 online Journal of Supplement to the November 2011 Vertebrate Paleontology Vertebrate Society of Vertebrate Paleontology Society of Vertebrate 71st Annual Meeting Paleontology Society of Vertebrate Las Vegas Paris Nevada, USA Las Vegas, November 2 – 5, 2011 Program and Abstracts Society of Vertebrate Paleontology 71st Annual Meeting Program and Abstracts COMMITTEE MEETING ROOM POSTER SESSION/ CONCURRENT CONCURRENT SESSION EXHIBITS SESSION COMMITTEE MEETING ROOMS AUCTION EVENT REGISTRATION, CONCURRENT MERCHANDISE SESSION LOUNGE, EDUCATION & OUTREACH SPEAKER READY COMMITTEE MEETING POSTER SESSION ROOM ROOM SOCIETY OF VERTEBRATE PALEONTOLOGY ABSTRACTS OF PAPERS SEVENTY-FIRST ANNUAL MEETING PARIS LAS VEGAS HOTEL LAS VEGAS, NV, USA NOVEMBER 2–5, 2011 HOST COMMITTEE Stephen Rowland, Co-Chair; Aubrey Bonde, Co-Chair; Joshua Bonde; David Elliott; Lee Hall; Jerry Harris; Andrew Milner; Eric Roberts EXECUTIVE COMMITTEE Philip Currie, President; Blaire Van Valkenburgh, Past President; Catherine Forster, Vice President; Christopher Bell, Secretary; Ted Vlamis, Treasurer; Julia Clarke, Member at Large; Kristina Curry Rogers, Member at Large; Lars Werdelin, Member at Large SYMPOSIUM CONVENORS Roger B.J. Benson, Richard J. Butler, Nadia B. Fröbisch, Hans C.E. Larsson, Mark A. Loewen, Philip D. Mannion, Jim I. Mead, Eric M. Roberts, Scott D. Sampson, Eric D. Scott, Kathleen Springer PROGRAM COMMITTEE Jonathan Bloch, Co-Chair; Anjali Goswami, Co-Chair; Jason Anderson; Paul Barrett; Brian Beatty; Kerin Claeson; Kristina Curry Rogers; Ted Daeschler; David Evans; David Fox; Nadia B. Fröbisch; Christian Kammerer; Johannes Müller; Emily Rayfield; William Sanders; Bruce Shockey; Mary Silcox; Michelle Stocker; Rebecca Terry November 2011—PROGRAM AND ABSTRACTS 1 Members and Friends of the Society of Vertebrate Paleontology, The Host Committee cordially welcomes you to the 71st Annual Meeting of the Society of Vertebrate Paleontology in Las Vegas. -
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 . -
The Fragile Legacy of Amphicoelias Fragillimus (Dinosauria: Sauropoda; Morrison Formation – Latest Jurassic)
Volumina Jurassica, 2014, Xii (2): 211–220 DOI: 10.5604/17313708 .1130144 The fragile legacy of Amphicoelias fragillimus (Dinosauria: Sauropoda; Morrison Formation – latest Jurassic) D. Cary WOODRUFF1,2, John R. FOSTER3 Key words: Amphicoelias fragillimus, E.D. Cope, sauropod, gigantism. Abstract. In the summer of 1878, American paleontologist Edward Drinker Cope published the discovery of a sauropod dinosaur that he named Amphicoelias fragillimus. What distinguishes A. fragillimus in the annals of paleontology is the immense magnitude of the skeletal material. The single incomplete dorsal vertebra as reported by Cope was a meter and a half in height, which when fully reconstructed, would make A. fragillimus the largest vertebrate ever. After this initial description Cope never mentioned A. fragillimus in any of his sci- entific works for the remainder of his life. More than four decades after its description, a scientific survey at the American Museum of Natural History dedicated to the sauropods collected by Cope failed to locate the remains or whereabouts of A. fragillimus. For nearly a cen- tury the remains have yet to resurface. The enormous size of the specimen has generally been accepted despite being well beyond the size of even the largest sauropods known from verifiable fossil material (e.g. Argentinosaurus). By deciphering the ontogenetic change of Diplodocoidea vertebrae, the science of gigantism, and Cope’s own mannerisms, we conclude that the reported size of A. fragillimus is most likely an extreme over-estimation. INTRODUCTION saurs pale in comparative size; thus A. fragillimus could be the largest dinosaur, and largest vertebrate in Earth’s history Described by Edward Drinker Cope in 1878, the holo- (the Blue Whale being approximately 29 meters long [Reilly type (and only) specimen of A. -
Wedel, M. J., & Taylor, M. P. (2013). Caudal Pneumaticity And
Wedel, M. J. , & Taylor, M. P. (2013). Caudal pneumaticity and pneumatic hiatuses in the sauropod dinosaurs Giraffatitan and Apatosaurus. PLoS ONE, 8(10), [e78213]. https://doi.org/10.1371/journal.pone.0078213 Publisher's PDF, also known as Version of record Link to published version (if available): 10.1371/journal.pone.0078213 Link to publication record in Explore Bristol Research PDF-document CC By University of Bristol - Explore Bristol Research General rights This document is made available in accordance with publisher policies. Please cite only the published version using the reference above. Full terms of use are available: http://www.bristol.ac.uk/red/research-policy/pure/user-guides/ebr-terms/ Caudal Pneumaticity and Pneumatic Hiatuses in the Sauropod Dinosaurs Giraffatitan and Apatosaurus Mathew J. Wedel1*, Michael P. Taylor2* 1 College of Osteopathic Medicine of the Pacific and College of Podiatric Medicine, Western University of Health Sciences, Pomona, California, United States of America, 2 Department of Earth Sciences, University of Bristol, United Kingdom Abstract Skeletal pneumaticity is found in the presacral vertebrae of most sauropod dinosaurs, but pneumaticity is much less common in the vertebrae of the tail. We describe previously unrecognized pneumatic fossae in the mid-caudal vertebrae of specimens of Giraffatitan and Apatosaurus. In both taxa, the most distal pneumatic vertebrae are separated from other pneumatic vertebrae by sequences of three to seven apneumatic vertebrae. Caudal pneumaticity is not prominent in most individuals of either of these taxa, and its unpredictable development means that it may be more widespread than previously recognised within Sauropoda and elsewhere in Saurischia. -
Osteology of the Dorsal Vertebrae of the Giant Titanosaurian Sauropod Dinosaur Dreadnoughtus Schrani from the Late Cretaceous of Argentina
Editors' choice Osteology of the dorsal vertebrae of the giant titanosaurian sauropod dinosaur Dreadnoughtus schrani from the Late Cretaceous of Argentina KRISTYN K. VOEGELE, MATTHEW C. LAMANNA, and KENNETH J. LACOVARA Voegele, K.K., Lamanna, M.C., and Lacovara K.J. 2017. Osteology of the dorsal vertebrae of the giant titanosaurian sauropod dinosaur Dreadnoughtus schrani from the Late Cretaceous of Argentina. Acta Palaeontologica Polonica 62 (4): 667–681. Many titanosaurian dinosaurs are known only from fragmentary remains, making comparisons between taxa difficult because they often lack overlapping skeletal elements. This problem is particularly pronounced for the exceptionally large-bodied members of this sauropod clade. Dreadnoughtus schrani is a well-preserved giant titanosaurian from the Upper Cretaceous (Campanian–Maastrichtian) Cerro Fortaleza Formation of southern Patagonia, Argentina. Numerous skeletal elements are known for Dreadnoughtus, including seven nearly complete dorsal vertebrae and a partial dorsal neural arch that collectively represent most of the dorsal sequence. Here we build on our previous preliminary descrip- tion of these skeletal elements by providing a detailed assessment of their serial positional assignments, as well as comparisons of the dorsal vertebrae of Dreadnoughtus with those of other exceptionally large-bodied titanosaurians. Although the dorsal elements of Dreadnoughtus probably belong to two individuals, they exhibit substantial morpho- logical variation that suggests that there is minimal, if any, positional overlap among them. Dreadnoughtus therefore preserves the second-most complete dorsal vertebral series known for a giant titanosaurian that has been described in detail, behind only that of Futalognkosaurus. The dorsal sequence of Dreadnoughtus provides valuable insight into serial variation along the vertebral column of these enormous sauropods. -
Determining the Largest Known Land Animal: a Critical Comparison of Differing Methods for Restoring the Volume and Mass of Extinct Animals
ANNALS OF CARNEGIE MUSEUM VOL. 85, NUMBER 4, PP. 335–358 31 DECEMBER 2019 DETERMINING THE LARGEST KNOWN LAND ANIMAL: A CRITICAL COMPARISON OF DIFFERING METHODS FOR RESTORING THE VOLUME AND MASS OF EXTINCT ANIMALS GREGORY PAUL 3100 St. Paul Street 604, Baltimore, Maryland, 21218 [email protected] ABSTRACT Recent claims regarding what is and is not the largest known sauropod dinosaur are tested via dimensional comparisons of the most critical metrics of relative size—especially, when possible, the functional lengths of the dorsal vertebral centra and the articulated length of the combined trunk vertebrae—and analog volumetric models based on technical skeletal restorations. The Cretaceous Argentinosaurus massed 65–75 tonnes, and its dorsal vertebrae and dorsal–sacral series are much larger than those of any other described titanosaur. Specimens of Patagotitan indicate a 50–55 tonne titanosaur, and the less complete Notocolossus, Puertasaurus, and ‘Antarctosaurus’ giganteus appear to have occupied a similar size range. Paralititan weighed between 30 and 55 tonnes. The juvenile Dreadnoughtus, as well as Futalognkosaurus and Alamosaurus, were in the area of 30 tonnes, with the possibility that the last was substantially larger. Entirely analog, skillfully produced, high-anatomical-fidelity skeletal restorations and volumetric models representing a prime-lean condition are approximately as scientifically objective and accurate, as well as more realistic than, analog-digital, crudely-formed convex hull volumetric models, which are based on subjectively and often inconsistently or erroneously mounted skeletons and digitized skeletal reconstructions. The need to ensure that skeletal restorations are as anatomically correct and consistent as the data allow is stressed, which requires that researchers and illustrators be sufficiently skilled in animal and especially dinosaur anatomy, and the proce- dures and standards for achieving the best possible results are detailed. -
1 CLASS 11: ANATOMY & SAUROPODOMORPHS I. BASIC DINOSAUR ANATOMY Anatomical Orientation Anterior
CLASS 11: ANATOMY & SAUROPODOMORPHS I. BASIC DINOSAUR ANATOMY Anatomical orientation Anterior - front Posterior - back Dorsal - top Ventral - bottom Proximal - near Distal - far Medial - towards the middle Lateral - towards the side Major parts of the skeleton you should know Vertebral column: cervical (neck), thoracic (attach to rib), sacral (attach to pelvis), and caudal (tail) vertebrae. Sacral vertebrae = sacrum Forelimb: Scapula, Coracoid, Humerus, Radius, Ulna, Wrist (carpels), Finger bones (metacarpels and phalanges) Hindlimb: Pelvis = Ilium, Pubis, Ischium, Femur, Tibia, Fibula, Ankle (tarsals = Astragalus, Calcaneum), Toe bones (metatarsals and phalanges) Head bony parts: Lower jaw: dentary (with teeth), articular (lower jaw joint), others bones Upper jaw: premaxilla and maxilla (both with teeth), quadrate (upper jaw joint) Skull: skull roof bones (nasals, frontals, parietals, etc.), cheek and eye bones (jugal, lacramal, post-orbital, etc.), palate bones, braincase, occipital condyle (head-neck joint) Head holes: foramen magnum (hole where spinal cord enters braincase), antorbital fenestra, upper and lower temporal fenestra, mandibular fenestra (on lower jaw) Sauropodomorpha All herbivores Shared derived traits Small head (5% body length), long neck with at least 10 vertebrae, elongate peg- like teeth with coarsely serrated crowns, large thumb with claw, long femur, large obturator foramen in pubis Prosauropoda few easily diagnosed shared features whopping big thumb claw that is further twisted, elongate cervical vertebrae (Also: small 5th digit on hind foot, iguana-like teeth) Some used gastroliths Quadrupeds and facultative bipeds Plateosaurus, Anchisaurus, Mussasaurus (representative genera) Known from Late Triassic through Early Jurassic Global distribution (Pangean) These represent the earliest plant-eating dinosaurs, which presumably evolved from bipedal meat eaters. -
A New Diplodocoid Sauropod Dinosaur from the Upper Jurassic Morrison Formation of Montana, USA
A new diplodocoid sauropod dinosaur from the Upper Jurassic Morrison Formation of Montana, USA JERALD D. HARRIS and PETER DODSON Harris, J.D. and Dodson, P. 2004. A new diplodocoid sauropod dinosaur from the Upper Jurassic Morrison Formation of Montana, USA. Acta Palaeontologica Polonica 49 (2): 197–210. A partial skeleton of a new sauropod dinosaur from the Upper Jurassic Morrison Formation (?Tithonian) of Montana is described. Suuwassea emilieae gen. et sp. nov. is diagnosed by numerous cranial, axial, and appendicular autapo− morphies. The holotype consists of a premaxilla, partial maxilla, quadrate, braincase with partial skull roof, several partial and complete cranial and middle cervical, cranial dorsal, and caudal vertebrae, ribs, complete scapulocoracoid, humerus, partial tibia, complete fibula, calcaneus, and partial pes. It displays numerous synapomorphies of the Diplodocoidea, in− cluding characters of both the Diplodocidae (Apatosaurus +(Diplodocus + Barosaurus)) and Dicraeosauridae (Dicraeo− saurus + Amargasaurus). Preliminary phylogenetic analysis indicates that Suuwassea is a diplodocoid more derived than rebbachisaurids but in a trichotomy with both the Diplodocidae and Dicraeosauridae. Suuwassea represents the first well−supported, North American, non−diplodocid representative of the Diplodocoidea and provides new insight into the origins of both the Diplodocidae and Dicraeosauridae. Key words: Dinosauria, Diplodocoidea, Diplodocidae, Dicraeosauridae, paleobiogeography, phylogeny, Morrison Forma− tion, Jurassic. Jerald -
Diplodocus[I]
The neck of Barosaurus: longer, wider and weirder than those of Diplodocus and other diplodocines Michael P Taylor Corresp., 1 , Mathew J Wedel 2 1 Department of Earth Sciences, University of Bristol, Bristol, United Kingdom 2 College of Osteopathic Medicine of the Pacific and College of Podiatric Medicine, Western University of Health Sciences, Pomona, California, United States of America Corresponding Author: Michael P Taylor Email address: [email protected] Barosaurus is a diplodocid sauropod from the Upper Jurassic Morrison Formation of the western United States, and is known for its very long neck. It is closely related to the sympatric Diplodocus, and often thought of as more or less identical except with a longer neck. The holotype YPM 429 includes three and a half posterior cervical vertebrae, somewhat distorted and damaged, which are nevertheless very distinctive and quite different from those of Diplodocus. The cervicals of the better known and more complete referred Barosaurus specimen AMNH 6341 show the same characteristic features as the holotype, though not to the same extent: transversely broad but anteroposteriorly short zygapophyseal facets; prezygapophyses carried on broad, squared-off rami; zygapophyses shifted forward relative to the centrum; diapophyses, parapophyses and neural spines shifted backwards; and broad diapophyseal “wings”. These features form a single functional complex, enabling great lateral flexibility, but restricting vertical flexibility. This may indicate that Barosaurus used a different feeding style from other sauropods perhaps sweeping out long arcs at ground level. The Morrison Formation contains at least nine diplodocid species in six to eight genera whose relationships are not yet fully understood, but Barosaurus remains distinct from its relatives. -
An Infant Ornithopod Dinosaur Tibia from the Late Cretaceous of Sebeş, Romania
AN INFANT ORNITHOPOD DINOSAUR TIBIA FROM THE LATE CRETACEOUS OF SEBEŞ, ROMANIA Stephen L. BRUSATTE*, Mátyás VREMIR**, Akinobu WATANABE***, Zoltán CSIKI-SAVA****, Darren NAISH*****, Gareth DYKE******, Gregory M. ERICKSON*******, Mark A. NORELL******** Introduction Since 2010 the Transylvanian Museum Society (Cluj-Napoca, Romania), the “Ioan Raica” Municipal Museum (Sebeş, Romania), the University of Bucharest (Romania), the American Museum of Natural History (New York, USA), and the University of Southampton (UK) have collaborated on a project focused on the vertebrate paleontology and geology of the Late Cretaceous of the Sebeş region of Romania. The aim of this project is to better understand the peculiar dinosaur- bearing faunas of the European terminal Cretaceous, which included bizarre dwarfed and late-surviving relict species that inhabited an ancient island archipelago.1 The most notable result of our project thus far has been the discovery of the aberrant new dromaeosaurid theropod Balaur bondoc, a close relative of the iconic Central Asian Velociraptor mongoliensis. The type specimen of B. bondoc was discovered by M. Vremir, described by our joint Cluj-Bucharest-New York team in 2010,2 and later monographed by our group.3 Here we describe a fragmentary, but intriguing, new specimen collected during fieldwork in 2011: the tibia of a small ornithopod dinosaur that may have been less than one year old at the time of death. * Division of Paleontology, American Museum of Natural History, New York, NY, USA; and Department of Earth and Environmental Sciences, Columbia University, New York, NY, USA; e- mail: [email protected]. ** Department of Natural Sciences, Transylvanian Museum Society (EME), Cluj-Napoca, Romania; e- mail: [email protected]. -
Osteological, Myological, and Biomechanical Investigations of the Sauropod Dinosaur
Osteological, myological, and biomechanical investigations of the sauropod dinosaur Dreadnoughtus schrani and molecular paleontological investigation of the marine crocodile Thoracosaurus neocesariensis A Thesis Submitted to the Faculty of Drexel University by Kristyn K. Voegele in partial fulfillment of the requirements for the degree of Doctor of Philosophy August 2016 © Copyright 2016 Kristyn K. Voegele. All Rights Reserved. ii Dedication To those with dreams and those that help them achieve dreams iii Acknowledgements This project would not be possible without the support, assistance, and guidance of just about everyone I have had interacted with in the last five years. I am grateful for all of your time, effort, patience, and support. First, I would like to thank Drexel University, the College of Arts and Sciences, the Department of Biology, the Academy of Natural Sciences, the Department of Biodiversity, Earth, and Environmental Science, and all the faculty and staff that made my graduate education possible. At Drexel I have been fortunate to have the opportunity to learn from world-class scientists about research, teaching, and everything in between. I appreciate the resources and support provided to me over my graduate career to turn me into a capable scientist. I am also thankful to the organizations that have financially supported my research. Without the financial support from a National Science Foundation Graduate Research Fellowship (DGE Award #1002809) and a Paul Bond Scholarship from the Delaware Valley Paleontological Society much of my research would have been unaffordable. I am thankful to these institutions for helping me expand my area of focus and training in my field of study during my graduate career.