DOCSLIB.ORG

From the Early Late Cretaceous of Egypt

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
From the Early Late Cretaceous of Egypt The end of the Age of Dinosaurs in Antarctica Matthew C. Lamanna, Carnegie Museum of Natural History Pangaea: ancient supercontinent 220 Ma (Late Triassic) Blakey 2003 Mid-Mesozoic breakup of Pangaea 150 Ma (Late Jurassic) Blakey 2003 Mid-Mesozoic breakup of Pangaea Laurasia: northern supercontinent Blakey 2003 Mid-Mesozoic breakup of Pangaea Gondwana: southern supercontinent Blakey 2003 Geography influences evolution Laurasian Cretaceous dinosaurs Josh Franzos Josh Gondwanan Cretaceous dinosaurs Gondwanan dinos much less known Ron Ron Blakey Exploring the Gondwanan Cretaceous Ron Ron Blakey Exploring the Gondwanan Cretaceous Ron Ron Blakey South America Exploring the Gondwanan Cretaceous Ron Ron Blakey Africa & Arabia Exploring the Gondwanan Cretaceous Ron Ron Blakey Australia Exploring the Gondwanan Cretaceous Gondwanan the Exploring Ron Blakey Madagascar http://www.ankizy.org Exploring the Gondwanan Cretaceous Gondwanan the Exploring Ron Blakey India Pakistan India & Jeff Wilson Jeff Wilson Gondwanan Cretaceous dinosaurs Ron Ron Blakey Abelisauroid theropods Bonaparte 1985; Bonaparte et al. 1990 Jose Bonaparte Jose Ron Ron Blakey Carnotaurus sastrei Abelisauroid theropods Lavocat 1955; Sampson et al. 1998; Sampson & Krause 2007 Jose Bonaparte Jose Dave Krause Dave Ron Ron Blakey Carnotaurus sastrei Majungasaurus crenatissimus Abelisauroid theropods Wilson et al. 2003 Project Exploration Project Rajasaurus narmadensis Jose Bonaparte Jose Dave Krause Dave Ron Ron Blakey Carnotaurus sastrei Majungasaurus crenatissimus Spinosaurid theropods Davide Bonadonna/National Bonadonna/National Davide Geographic Carcharodontosaurid theropods University of Chicago of Chicago University Rebbachisaurid sauropods Todd Todd Marshall Titanosaurian sauropods Mark Hallett Mark Titanosaurian sauropods Paralititan stromeri Todd Todd Marshall Antarctica Antarctica? zimbio.com Antarctica: the missing piece Antarctica: the missing piece ~70 Ma (Late Cretaceous) Antarctica: the missing piece South America Antarctica Australia ~70 Ma (Late Cretaceous) Antarctica: the missing piece South America Antarctica Australia ~70 Ma (Late Cretaceous) Antarctic Peninsula Antarctic Peninsula Robert Nicholls Antarctic Peninsula Antarctic Antarctic Peninsula Vega Is. James Ross Is. James Ross Basin, Antarctic Peninsula Vega Is. James Ross Is. James Ross Basin, Antarctic Peninsula 66 Maastrichtian 66 71 Campanian 84 Santonian 86 Cretaceous Coniacian 89 Turonian 94 Cenomanian 100 146 Albian 112 Jurassic Aptian 125 Barremian 130 200 Hauterivian 134 Valanginian Triassic 140 Berriasian 146 251 Ma Ma James Ross Basin, Antarctic Peninsula 66 Maastrichtian 66 71 ~90Campanian-70 Ma 84 Santonian 86 Cretaceous Coniacian 89 Turonian 94 Cenomanian 100 146 Albian 112 Jurassic Aptian 125 Barremian 130 200 Hauterivian 134 Valanginian Triassic 140 Berriasian 146 251 Ma Ma James Ross Basin, Antarctic Peninsula Antarctic Cretaceous vertebrates Robert Robert Nicholls Antarctic Cretaceous vertebrates Sharks Robert Robert Nicholls Antarctic Cretaceous vertebrates Bony fishes Robert Robert Nicholls Antarctic Cretaceous vertebrates Plesiosaurs Robert Robert Nicholls Antarctic Cretaceous vertebrates Mosasaurs Robert Robert Nicholls Antarctic Cretaceous vertebrates Non-avian dinosaurs Robert Robert Nicholls Antarctic Cretaceous dinosaurs Dinosauria Ornithischia Thyreophora Ankylosauria Antarctopelta oliveroi Ornithopoda Morrosaurus antarcticus Trinisaura santamartaensis Unidentified ornithopod(s) Hadrosauridae indet. Saurischia Sauropoda Titanosauria indet. Theropoda Tetanurae indet. ?Dromaeosauridae ?Unenlagiinae gen. et sp. nov. Antarctic Cretaceous dinosaurs Dinosauria Ornithischia Thyreophora Ankylosauria Antarctopelta oliveroi Ornithopoda Morrosaurus antarcticus Trinisaura santamartaensis Unidentified ornithopod(s) Hadrosauridae indet. Saurischia Sauropoda Titanosauria indet. Theropoda Tetanurae indet. ?Dromaeosauridae ?Unenlagiinae gen. et sp. nov. Olivero et al. 1991; Salgado & Gasparini 2006 Antarctic Cretaceous dinosaurs Dinosauria Ornithischia Thyreophora Ankylosauria Antarctopelta oliveroi Bones preserved Ornithopoda Morrosaurus antarcticus Trinisaura santamartaensis Unidentified ornithopod(s) Hadrosauridae indet. Saurischia Sauropoda Pelvis Titanosauria indet. Left lateral (side) view Theropoda Tetanurae indet. ?Dromaeosauridae ?Unenlagiinae gen. et sp. nov. Coria et al. 2013 Antarctic Cretaceous dinosaurs Dinosauria Ornithischia Thyreophora Ankylosauria Antarctopelta oliveroi Ornithopoda Morrosaurus antarcticus Trinisaura santamartaensis Unidentified ornithopod(s) Hadrosauridae indet. Saurischia Sauropoda Titanosauria indet. Theropoda Tetanurae indet. ?Dromaeosauridae Robert Nicholls ?Unenlagiinae gen. et sp. nov. Milner et al. 1992; Barrett et al. 2014 Antarctic Cretaceous dinosaurs Dinosauria Ornithischia Thyreophora Ankylosauria Antarctopelta oliveroi Ornithopoda Morrosaurus antarcticus Trinisaura santamartaensis Unidentified ornithopod(s) Hadrosauridae indet. Saurischia Sauropoda Titanosauria indet. Theropoda Tetanurae indet. ?Dromaeosauridae Robert Nicholls ?Unenlagiinae gen. et sp. nov. Milner et al. 1992; Barrett et al. 2014 Antarctic Cretaceous dinosaurs Dinosauria Ornithischia Thyreophora Ankylosauria Antarctopelta oliveroi Ornithopoda Morrosaurus antarcticus Trinisaura santamartaensis Unidentified ornithopod(s) Hadrosauridae indet. Saurischia Sauropoda Right dentary (lower jaw) Titanosauria indet. Lateral (side) view Theropoda Tetanurae indet. ?Dromaeosauridae ?Unenlagiinae gen. et sp. nov. Milner et al. 1992; Barrett et al. 2014 Antarctic Cretaceous dinosaurs Dinosauria Ornithischia Tooth Thyreophora Ankylosauria Antarctopelta oliveroi Ornithopoda Morrosaurus antarcticus Trinisaura santamartaensis Unidentified ornithopod(s) Hadrosauridae indet. Saurischia Sauropoda Titanosauria indet. Theropoda Tetanurae indet. Labial (side) view Mesial (front) view ?Dromaeosauridae ?Unenlagiinae gen. et sp. nov. Case et al. 2000 Antarctic Cretaceous dinosaurs Dinosauria Ornithischia Thyreophora Ankylosauria Antarctopelta oliveroi Ornithopoda Morrosaurus antarcticus Trinisaura santamartaensis Unidentified ornithopod(s) Hadrosauridae indet. Saurischia Sauropoda Titanosauria indet. Theropoda Tetanurae indet. ?Dromaeosauridae ?Unenlagiinae gen. et sp. nov. Michael Skrepnick Michael Antarctic Cretaceous dinosaurs Dinosauria Ornithischia Thyreophora Ankylosauria Antarctopelta oliveroi Ornithopoda Morrosaurus antarcticus Trinisaura santamartaensis Unidentified ornithopod(s) Hadrosauridae indet. Saurischia Sauropoda Titanosauria indet. Theropoda Tetanurae indet. ?Dromaeosauridae ?Unenlagiinae gen. et sp. nov. Michael Skrepnick Michael Hadrosaur paleobiogeography Ron Ron Blakey Originate North America/Eurasia ~100 Ma Hadrosaur paleobiogeography Ron Ron Blakey Disperse to South America ~80 Ma Hadrosaur paleobiogeography Ron Ron Blakey Disperse to Antarctica ~80-70 Ma Hadrosaur paleobiogeography Ron Ron Blakey South America-Antarctica land connection operative in latest Cretaceous Antarctic Cretaceous dinosaurs Dinosauria Caudal (tail) vertebra Ornithischia Thyreophora Ankylosauria Antarctopelta oliveroi Ornithopoda Morrosaurus antarcticus Trinisaura santamartaensis Unidentified ornithopod(s) Hadrosauridae indet. Saurischia Sauropoda Titanosauria indet. Theropoda Anterior (front) Right lateral (side) Posterior (rear) view view view Tetanurae indet. ?Dromaeosauridae ?Unenlagiinae gen. et sp. nov. Cerda et al. 2012 Antarctic Cretaceous dinosaurs Dinosauria Tibia (ankle end only) Ornithischia Thyreophora Ankylosauria Antarctopelta oliveroi Ornithopoda Morrosaurus antarcticus Trinisaura santamartaensis Unidentified ornithopod(s) Hadrosauridae indet. Saurischia Sauropoda Titanosauria indet. Theropoda Tetanurae indet. Posterior (rear) view ?Dromaeosauridae ?Unenlagiinae gen. et sp. nov. Molnar et al. 1996 Antarctic Cretaceous dinosaurs Dinosauria Tarsus & pes Ornithischia (ankle & foot) Thyreophora Ankylosauria Antarctopelta oliveroi Ornithopoda Morrosaurus antarcticus Trinisaura santamartaensis Unidentified ornithopod(s) Hadrosauridae indet. Saurischia Sauropoda Titanosauria indet. Theropoda Tetanurae indet. ?Dromaeosauridae ?Unenlagiinae gen. et sp. nov. Anterior (front) view Case et al. 2007 Nature of Antarctic dinosaur fauna Nature of Antarctic dinosaur fauna “The majority of the dinosaur assemblage from the Antarctic Peninsula… are remnants of a cosmopolitan dinosaur fauna more typical of other areas at earlier times (e.g. mid-Cretaceous of North America and Australia…).” Case et al. 2007 Antarctica ~70 Ma Antarctic dinosaurs ~70 Ma Dromaeosaurids Titanosaurs Basal ornithopods Ankylosaurs Hadrosaurids Gondwanan dinosaurs ~70 Ma Dromaeosaurids Titanosaurs Basal ornithopods Ankylosaurs Hadrosaurids South American dinosaurs ~70 Ma Dromaeosaurids Titanosaurs Basal ornithopods Ankylosaurs Hadrosaurids Antarctic dinosaurs ~70 Ma ?Dromaeosaurids Titanosaurs Basal ornithopods Ankylosaurs Hadrosaurids = No evidence for ‘relictualism’ in Antarctic latest Cretaceous dinosaur fauna Antarctic Cretaceous vertebrates Robert Robert Nicholls Antarctic Cretaceous vertebrates Birds Robert Robert Nicholls Modern birds (Neornithes) >10,000 species When did modern birds evolve? Modified from Dyke & van Tuinen 2004 T I M E Jurassic Cretaceous Cenozoic (200-146 (146-66 Mya) (66-0 Mya) Mya) record fossil Avian Confuciusornis Archaeopteryx Hesperornis Ichthyornis Yixianornis (Neornithes) birds modern Gansus Yanornis neornithines Paleogene Hongshanornis Cretaceous origin of modern birds? of modern origin Cretaceous
Load more

Recommended publications
  • 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.
    [Show full text]
  • Trophic Shift and the Origin of Birds
    bioRxiv preprint doi: https://doi.org/10.1101/2020.08.18.256131; this version posted August 18, 2020. The copyright holder for this preprint (which was not certified by peer review) is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under aCC-BY-NC 4.0 International license. Title: Trophic shift and the origin of birds Author: Yonghua Wu Affiliations: 1School of Life Sciences, Northeast Normal University, 5268 Renmin Street, Changchun, 130024, China. 2Jilin Provincial Key Laboratory of Animal Resource Conservation and Utilization, Northeast Normal University, 2555 Jingyue Street, Changchun, 130117, China. * Corresponding author: Yonghua Wu, Ph.D Professor, School of Life Sciences Northeast Normal University 5268 Renmin Street, Changchun, 130024, China Tel: +8613756171649 Email: [email protected] 1 bioRxiv preprint doi: https://doi.org/10.1101/2020.08.18.256131; this version posted August 18, 2020. The copyright holder for this preprint (which was not certified by peer review) is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under aCC-BY-NC 4.0 International license. Abstract Birds are characterized by evolutionary specializations of both locomotion (e.g., flapping flight) and digestive system (toothless, crop, and gizzard), while the potential selection pressures responsible for these evolutionary specializations remain unclear. Here we used a recently developed molecular phyloecological method to reconstruct the diets of the ancestral archosaur and of the common ancestor of living birds (CALB). Our results showed that the ancestral archosaur exhibited a predominant Darwinian selection of protein and fat digestion and absorption, whereas the CALB showed a marked enhanced selection of carbohydrate and fat digestion and absorption, suggesting a trophic shift from carnivory to herbivory (fruit, seed, and/or nut-eater) at the archosaur-to-bird transition.
    [Show full text]
  • Office of Polar Programs
    DEVELOPMENT AND IMPLEMENTATION OF SURFACE TRAVERSE CAPABILITIES IN ANTARCTICA COMPREHENSIVE ENVIRONMENTAL EVALUATION DRAFT (15 January 2004) FINAL (30 August 2004) National Science Foundation 4201 Wilson Boulevard Arlington, Virginia 22230 DEVELOPMENT AND IMPLEMENTATION OF SURFACE TRAVERSE CAPABILITIES IN ANTARCTICA FINAL COMPREHENSIVE ENVIRONMENTAL EVALUATION TABLE OF CONTENTS 1.0 INTRODUCTION....................................................................................................................1-1 1.1 Purpose.......................................................................................................................................1-1 1.2 Comprehensive Environmental Evaluation (CEE) Process .......................................................1-1 1.3 Document Organization .............................................................................................................1-2 2.0 BACKGROUND OF SURFACE TRAVERSES IN ANTARCTICA..................................2-1 2.1 Introduction ................................................................................................................................2-1 2.2 Re-supply Traverses...................................................................................................................2-1 2.3 Scientific Traverses and Surface-Based Surveys .......................................................................2-5 3.0 ALTERNATIVES ....................................................................................................................3-1
    [Show full text]
  • LETTER Doi:10.1038/Nature14423
    LETTER doi:10.1038/nature14423 A bizarre Jurassic maniraptoran theropod with preserved evidence of membranous wings Xing Xu1,2*, Xiaoting Zheng1,3*, Corwin Sullivan2, Xiaoli Wang1, Lida Xing4, Yan Wang1, Xiaomei Zhang3, Jingmai K. O’Connor2, Fucheng Zhang2 & Yanhong Pan5 The wings of birds and their closest theropod relatives share a ratios are 1.16 and 1.08, respectively, compared to 0.96 and 0.78 in uniform fundamental architecture, with pinnate flight feathers Epidendrosaurus and 0.79 and 0.66 in Epidexipteryx), an extremely as the key component1–3. Here we report a new scansoriopterygid short humeral deltopectoral crest, and a long rod-like bone articu- theropod, Yi qi gen. et sp. nov., based on a new specimen from the lating with the wrist. Middle–Upper Jurassic period Tiaojishan Formation of Hebei Key osteological features are as follows. STM 31-2 (Fig. 1) is inferred Province, China4. Yi is nested phylogenetically among winged ther- to be an adult on the basis of the closed neurocentral sutures of the opods but has large stiff filamentous feathers of an unusual type on visible vertebrae, although this is not a universal criterion for maturity both the forelimb and hindlimb. However, the filamentous feath- across archosaurian taxa12. Its body mass is estimated to be approxi- ers of Yi resemble pinnate feathers in bearing morphologically mately 380 g, using an empirical equation13. diverse melanosomes5. Most surprisingly, Yi has a long rod-like The skull and mandible are similar to those of other scansoriopter- bone extending from each wrist, and patches of membranous tissue ygids, and to a lesser degree to those of oviraptorosaurs and some basal preserved between the rod-like bones and the manual digits.
    [Show full text]
  • A Second Cretaceous Ornithuromorph Bird from the Changma Basin, Gansu Province, Northwestern China Author(S): Hai-Lu You , Jessie Atterholt , Jingmai K
    A Second Cretaceous Ornithuromorph Bird from the Changma Basin, Gansu Province, Northwestern China Author(s): Hai-Lu You , Jessie Atterholt , Jingmai K. O'Connor , Jerald D. Harris , Matthew C. Lamanna and Da-Qing Li Source: Acta Palaeontologica Polonica, 55(4):617-625. 2010. Published By: Institute of Paleobiology, Polish Academy of Sciences DOI: http://dx.doi.org/10.4202/app.2009.0095 URL: http://www.bioone.org/doi/full/10.4202/app.2009.0095 BioOne (www.bioone.org) is a nonprofit, online aggregation of core research in the biological, ecological, and environmental sciences. BioOne provides a sustainable online platform for over 170 journals and books published by nonprofit societies, associations, museums, institutions, and presses. Your use of this PDF, the BioOne Web site, and all posted and associated content indicates your acceptance of BioOne’s Terms of Use, available at www.bioone.org/page/terms_of_use. Usage of BioOne content is strictly limited to personal, educational, and non-commercial use. Commercial inquiries or rights and permissions requests should be directed to the individual publisher as copyright holder. BioOne sees sustainable scholarly publishing as an inherently collaborative enterprise connecting authors, nonprofit publishers, academic institutions, research libraries, and research funders in the common goal of maximizing access to critical research. A second Cretaceous ornithuromorph bird from the Changma Basin, Gansu Province, northwestern China HAI−LU YOU, JESSIE ATTERHOLT, JINGMAI K. O’CONNOR, JERALD D. HARRIS, MATTHEW C. LAMANNA, and DA−QING LI You, H.−L., Atterholt, J., O’Connor, J.K., Harris, J.D., Lamanna, M.C., and Li, D.−Q. 2010. A second Cretaceous ornithuromorph bird from the Changma Basin, Gansu Province, northwestern China.
    [Show full text]
  • Lowest Paleogene Strata on Vega Island, Antarctica
    Palaeogeography, Palaeoclimatology, Palaeoecology 402 (2014) 55–72 Contents lists available at ScienceDirect Palaeogeography, Palaeoclimatology, Palaeoecology journal homepage: www.elsevier.com/locate/palaeo Stratigraphy and vertebrate paleoecology of Upper Cretaceous–?lowest Paleogene strata on Vega Island, Antarctica Eric M. Roberts a,⁎, Matthew C. Lamanna b, Julia A. Clarke c, Jin Meng d, Eric Gorscak e, Joseph J.W. Sertich f, Patrick M. O'Connor e, Kerin M. Claeson g,RossD.E.MacPheeh a School of Earth and Environmental Sciences, James Cook University, Townsville, QLD 4811, Australia b Section of Vertebrate Paleontology, Carnegie Museum of Natural History, 4400 Forbes Ave., Pittsburgh, PA 15213, USA c Department of Geological Sciences, Jackson School of Geosciences, University of Texas at Austin, 1 University Station C1100, Austin, TX 78712, USA d Department of Paleontology, American Museum of Natural History, Central Park West at 79th St., New York, NY 10024, USA e Department of Biomedical Sciences, Heritage College of Osteopathic Medicine, Ohio University, Athens, OH 45701, USA f Department of Earth Sciences, Denver Museum of Nature and Science, 2001 Colorado Blvd., Denver, CO 80205, USA g Department of Biomedical Sciences, Philadelphia College of Osteopathic Medicine, Philadelphia, PA 19131, USA h Department of Mammalogy, American Museum of Natural History, Central Park West at 79th St., New York, NY 10024, USA article info abstract Article history: The Upper Cretaceous (Maastrichtian) Sandwich Bluff Member of the López de Bertodano Formation is well Received 24 October 2013 exposed on Vega Island in the James Ross Basin off the northeastern coast of the Antarctic Peninsula. Although Received in revised form 18 February 2014 this unit is one of the richest sources of end-Cretaceous vertebrate fossils in Antarctica, it is also one of the Accepted 3 March 2014 least sedimentologically and stratigraphically characterized units in the basin.
    [Show full text]
  • Review REVIEW 1: 543–559, 2014 Doi: 10.1093/Nsr/Nwu055 Advance Access Publication 5 September 2014
    National Science Review REVIEW 1: 543–559, 2014 doi: 10.1093/nsr/nwu055 Advance access publication 5 September 2014 GEOSCIENCES Special Topic: Paleontology in China The Jehol Biota, an Early Cretaceous terrestrial Lagerstatte:¨ new discoveries and implications Zhonghe Zhou ABSTRACT The study of the Early Cretaceous terrestrial Jehol Biota, which provides a rare window for reconstruction of a Lower Cretaceous terrestrial ecosystem, is reviewed with a focus on some of the latest progress. A newly proposed definition of the biota based on paleoecology and taphonomy is accepted. Although theJehol fossils are mainly preserved in two types of sedimentary rocks, there are various types of preservation with a complex mechanism that remains to be understood. New discoveries of significant taxa from the Jehol Biota, with an updated introduction of its diversity, confirm that the Jehol Biota represents one of themost diversified biotas of the Mesozoic. The evolutionary significance of major biological groups (e.g. dinosaurs, birds, mammals, pterosaurs, insects, and plants) is discussed mainly in the light of recent discoveries, and some of the most remarkable aspects of the biota are highlighted. The global and local geological, paleogeographic, and paleoenvironmental background of the Jehol Biota have contributed to the unique composition, evolution, and preservation of the biota, demonstrating widespread faunal exchanges between Asia and other continents caused by the presence of the Eurasia–North American continental mass and its link to South America, and confirming northeastern China as the origin and diversification center fora variety of Cretaceous biological groups. Although some progress has been made on the reconstruction of the paleotemperature at the time of the Jehol Biota, much more work is needed to confirm a possible link between the remarkable diversity of the biota and the cold intervals during the Early Cretaceous.
    [Show full text]
  • 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.
    [Show full text]
  • An Avian Femur from the Late Cretaceous of Vega Island, Antarctic Peninsula: Removing the Record of Cursorial Landbirds from the Mesozoic of Antarctica
    An avian femur from the Late Cretaceous of Vega Island, Antarctic Peninsula: removing the record of cursorial landbirds from the Mesozoic of Antarctica Abagael R. West1,2,3, Christopher R. Torres4, Judd A. Case5, Julia A. Clarke4,6, Patrick M. O’Connor7,8 and Matthew C. Lamanna1 1 Section of Vertebrate Paleontology, Carnegie Museum of Natural History, Pittsburgh, PA, USA 2 Section of Mammals, Carnegie Museum of Natural History, Pittsburgh, PA, USA 3 Department of Biological Sciences, University of Pittsburgh, Pittsburgh, PA, USA 4 Department of Integrative Biology, University of Texas at Austin, Austin, TX, USA 5 Department of Biology, Eastern Washington University, Cheney, WA, USA 6 Jackson School of Geosciences, University of Texas at Austin, Austin, TX, USA 7 Department of Biomedical Sciences, Ohio University Heritage College of Osteopathic Medicine, Athens, OH, USA 8 Ohio Center for Ecology and Evolutionary Studies, Ohio University, Athens, OH, USA ABSTRACT In 2006, a partial avian femur (South Dakota School of Mines and Technology (SDSM) 78247) from the Upper Cretaceous (Maastrichtian) Sandwich Bluff Member of the López de Bertodano Formation of Sandwich Bluff on Vega Island of the northern Antarctic Peninsula was briefly reported as that of a cariamiform—a clade that includes extant and volant South American species and many extinct flightless and cursorial species. Although other authors have since rejected this taxonomic assignment, SDSM 78247 had never been the subject of a detailed description, hindering a definitive assessment
    [Show full text]
  • The Molecular Evolution of Feathers with Direct Evidence from Fossils
    The molecular evolution of feathers with direct evidence from fossils Yanhong Pana,1, Wenxia Zhengb, Roger H. Sawyerc, Michael W. Penningtond, Xiaoting Zhenge,f, Xiaoli Wange,f, Min Wangg,h, Liang Hua,i, Jingmai O’Connorg,h, Tao Zhaoa, Zhiheng Lig,h, Elena R. Schroeterb, Feixiang Wug,h, Xing Xug,h, Zhonghe Zhoug,h,i,1, and Mary H. Schweitzerb,j,1 aChinese Academy of Sciences Key Laboratory of Economic Stratigraphy and Palaeogeography, Nanjing Institute of Geology and Palaeontology and Center for Excellence in Life and Paleoenvironment, Chinese Academy of Sciences, Nanjing 210008, China; bDepartment of Biological Sciences, North Carolina State University, Raleigh, NC 27695; cDepartment of Biological Sciences, University of South Carolina, Columbia, SC 29205; dAmbioPharm Incorporated, North Augusta, SC 29842; eInstitute of Geology and Paleontology, Lingyi University, Lingyi City, 27605 Shandong, China; fShandong Tianyu Museum of Nature, Pingyi, 273300 Shandong, China; gCAS Key Laboratory of Vertebrate Evolution and Human Origins of the Chinese Academy of Sciences, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, 100044 Beijing, China; hCenter for Excellence in Life and Paleoenvironment, Chinese Academy of Sciences, 100044 Beijing, China; iCollege of Earth and Planetary Sciences, University of Chinese Academy of Sciences, 100049 Beijing, China; and jNorth Carolina Museum of Natural Sciences, Raleigh, NC 27601 Contributed by Zhonghe Zhou, December 15, 2018 (sent for review September 12, 2018; reviewed by Dominique G. Homberger and Chenxi Jia) Dinosaur fossils possessing integumentary appendages of various feathers in Anchiornis, barbules that interlock to form feather morphologies, interpreted as feathers, have greatly enhanced our vanes critical for flight have not been identified yet (12).
    [Show full text]
  • Appendix A. Supplementary Material
    Appendix A. Supplementary material Comprehensive taxon sampling and vetted fossils help clarify the time tree of shorebirds (Aves, Charadriiformes) David Cernˇ y´ 1,* & Rossy Natale2 1Department of the Geophysical Sciences, University of Chicago, Chicago 60637, USA 2Department of Organismal Biology & Anatomy, University of Chicago, Chicago 60637, USA *Corresponding Author. Email: [email protected] Contents 1 Fossil Calibrations 2 1.1 Calibrations used . .2 1.2 Rejected calibrations . 22 2 Outgroup sequences 30 2.1 Neornithine outgroups . 33 2.2 Non-neornithine outgroups . 39 3 Supplementary Methods 72 4 Supplementary Figures and Tables 74 5 Image Credits 91 References 99 1 1 Fossil Calibrations 1.1 Calibrations used Calibration 1 Node calibrated. MRCA of Uria aalge and Uria lomvia. Fossil taxon. Uria lomvia (Linnaeus, 1758). Specimen. CASG 71892 (referred specimen; Olson, 2013), California Academy of Sciences, San Francisco, CA, USA. Lower bound. 2.58 Ma. Phylogenetic justification. As in Smith (2015). Age justification. The status of CASG 71892 as the oldest known record of either of the two spp. of Uria was recently confirmed by the review of Watanabe et al. (2016). The younger of the two marine transgressions at the Tolstoi Point corresponds to the Bigbendian transgression (Olson, 2013), which contains the Gauss-Matuyama magnetostratigraphic boundary (Kaufman and Brigham-Grette, 1993). Attempts to date this reversal have been recently reviewed by Ohno et al. (2012); Singer (2014), and Head (2019). In particular, Deino et al. (2006) were able to tightly bracket the age of the reversal using high-precision 40Ar/39Ar dating of two tuffs in normally and reversely magnetized lacustrine sediments from Kenya, obtaining a value of 2.589 ± 0.003 Ma.
    [Show full text]
  • Czech Research in Antarctica
    Main Facts The Czech Johann Gregor Mendel Polar Station Building the Station CZECH RESEARCH IN ANTARCTICA james ross island precise position of the station the thawing landscape e island is located on the Atlantic side of the northernmost part of 63° 48’ 5.6’’S AND 57° 53’ 5.6’’W e entire island was covered by ice approximately 13,000 years ago. “Thanks to the building of the station we the Antarctic Peninsula, approximately between 63°45’ and 64°30’S, Conceived as a station to be operated in the Antarctic summer, from Since that time the ice covering the island thaws alternately slower and have become members of an elite club of 57°00’ and 58°30’W. the end of December to the beginning of March. At this time up to faster, although the island experienced periods when glaciation was countries doing research and other work in Antarctica. I’m delighted that the Czech Geologically the island is composed of cretaceous sediment (siltstone, fieen individuals can stay at the station. more extensive than today. Today the retreat of the ice has produced scientific programme was approved as sandstone, and conglomerate). On top of this surface appear volcanoes, e crew is quartered in the operational building, which is a wooden so-called “thawed oases”. Simply put, these are parts of the terrain that a high-quality project by the other countries which were active until the earlier Quaternary Period. Everything construction with perfect thermal insulation. e station is heated by seem to have been pulled from an enormous freezer and are gradually of the Antarctic Treaty.
    [Show full text]