DOCSLIB.ORG

See a Color Pdf of This Month's Issue Here

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text

Load more

Newsletter of the University of California Museum of Paleontology UCMP NEWS JAN 2013 New species from the drawers of UCMP A frequent question we get at the museum is whether all our fossils are described. We can assure you there are many, many left to be described, and every year many scientists de- scribe new species and do new research based on fossils they find in our drawers. In 2012, UCMP vertebrate fossils were used in 81 published studies by scientists from around Courtesy of Erica Clites Courtesy of Jason Carr the world, and 13 new taxa were named Erica working on 550-million-year-old fossils Jason sits beside a jacket containing the jaw- from previously undescribed specimens. in the Ediacaran Hills of South Australia bone of a Miocene amphicyonid representing Here’s the new taxa roundup for 2012. while a master’s student in Mary Droser’s lab the largest and most complete fossil carnivoran January—UC alum Samantha Hopkins at UC Riverside. yet recovered in Panama. and her student Jonathan Calede1 described Hesperogaulus shotwelli, a new species of New Museum Scientist Meet Jason Carr, the new horned rodent from Nevada in the Zoologi- Erica Clites to manage fossil preparation lab cal Journal of the Linnean Society. USGS fossil collection manager March—Recent UC graduate Brian 2 Growing up in Ann Arbor, Michigan, Erica Jason Carr grew up along the Central Coast Swartz named Tinirau clackae, a stem tet- Clites says her early training as a scien- of California, in Santa Maria, surrounded rapod from Nevada Devonian in PLoS One. 3 tist benefitted from a Girl Scout summer by Miocene geology. Stephen Chester and Chris Beard named program led by graduate students at the While attending Santa Barbara City Col- two tiny new primates from the late Paleo- University of Nebraska. Visiting Ashfall Fos- lege, Jason had the good fortune to take cene of Wyoming, Dryomomys dulcifer and sil Beds as well as other parks of geological courses with geology instructor, Robert Gray, Tinimomys tribos, in the Annals of the Carn- significance as a high school student exposed whose field courses resonated with Jason’s egie Museum. her to the excitement of geology and pale- growing interest in geology and paleontol- August—Hans-Peter Schultz and UC 4 ontology in the field. ogy. Jason then transferred to the South Da- alum John W. Reed described the sarcop- Erica attended the College of Wooster in kota School of Mines (SDSM), where he was terygian fishBruehnopteron murphyi from Ohio, majoring in geology and minoring exposed to courses in fossil preparation and the middle Devonian, from the Northern in German. After graduation she received museum curation and an opportunity to in- see SPECIES on page 5 a Fulbright Scholarship to teach English to tern at Ashfall Fossil Beds in Nebraska. With 5th–13th grade students in northeast Ger- field and research opportunities in paleontol- many. Erica returned to continue her studies ogy around every corner, Jason entered the IN THIS ISSUE and a master’s thesis on Ediacaran faunal master’s program in geology at SDSM and systematics at UC Riverside in the Mary later applied for a position with the Panama UCMP publications ........ p. 2 Droser lab. Canal Project affiliated with the University Excited about opportunities to promote of Florida. He spent seven months recover- Tidbits & Web notes ...... p. 3 research in geology and paleontology to the ing new and important fossils uncovered The Engdahl family ........ p. 4 public, Erica spent time in Washington, during excavations as part of the ongoing DC, pursuing internships at the National expansion of the Panama Canal. Friends of UCMP ............ p. 6 Academy of Sciences and the National Park Jason could not pass up an opportunity Director’s letter ............. p. 7 Service. She was instrumental in launching to return to California to accept a position The oldest dinosaur? .... p. 7 see ERICA on page 4 see JASON on page 4 2012 UCMP publications Communicating science to both col- 10.1073/pnas.1212381109 Finnegan, S., N.A. Heim, S.E. Peters, leagues and the general public is an es- and W.W. Fischer. 2012. Climate change Brinkman, D.B., P.A. Holroyd, and J.D. sential ingredient of the UCMP mission. and the selective signature of the Late Gardner (eds.). 2012. Morphology and Through journals, presentations at pro- Ordovician mass extinction. Proceed- Evolution of Turtles. Springer Nether- fessional meetings, articles in the popular ings of the National Academy of Sci- lands, Dordrecht. 596 pp. press, interviews, workshops, lectures, ences 109(18):6829-6834. doi: 10.1073/ and even science cafés, members of the Brook, B.W., and A.D. Barnosky. 2012. pnas.1117039109 UCMP community share their research Quaternary extinctions and their link Gong, Z., N.J. Matzke, B. Ermentrout, that ultimately contributes to a greater to climate change. Pp. 179–198 in L. D. Song, J.E. Vendetti,* M. Slatkin, and understanding of the history of life. This Hannah (ed.), Saving a Million Species: G. Oster. 2012. Evolution of patterns on list of 2012 peer-reviewed articles rep- Extinction Risk from Climate Change. Conus shells. Proceedings of the National resents a portion of that effort. UCMP Island Press, Washington, D.C. Academy of Sciences 109(5):E234–E241. alums are indicated by asterisks. Campos, E.O., D. Vihena, and R.L. doi: 10.1073/pnas.1119859109 Andrews, T.M., R.M. Price, L.S. Mead, Caldwell. 2012. Pleopod rowing is used Harnik, P.G., H.K. Lotze, S.C. Ander- T.L. McElhinny, A. Thanukos, K.E. to achieve high forward swimming son, Z.V. Finkel, S. Finnegan, D.R. Perez, C.F. Herreid, D.R. Terry, and P.P. speeds during the escape response of Lindberg, L.H. Liow, R. Lockwood, Lemmons. 2012. Biology undergradu- Odontodactylus havanensis (Stomatopo- C.R. McClain, J.L. McGuire, A. O’Dea, ates’ misconceptions about genetic drift. da). Journal of Crustacean Biology J.M. Pandolfi, C. Simpson, and D.P. CBE Life Sciences Education 11(3):248– 32(2):171–179. doi: 10.1163/ Tittensor. 2012. Extinctions in ancient 259. doi: 10.1187/cbe.11-12-0107 193724011X615596 and modern seas. Trends in Ecology and Barnosky, A.D., E.A. Hadly, J. Bas- Chiou, T.-H., A.R. Place, R.L. Caldwell, Evolution 27(11):608-17. doi: 10.1016/j. compte, E.L. Berlow, J.H. Brown, M. J. Marshall, and T.W. Cronin. 2012. A tree.2012.07.010 Fortelius, W.M. Getz, J. Harte, A. Hast- novel function for a carotenoid: Astax- Hickman, C.S. 2012. A new genus and ings, P.A. Marquet, N.D. Martinez, A. anthin used as a polarizer for visual two new species of deep-sea gastropods Mooers, P. Roopnarine, G. Vermeij, J.W. signaling in a mantis shrimp. Journal of (Gastropoda: Vetigastropoda: Gazidae). Williams, R. Gillespie, J. Kitzes, C. Mar- Experimental Biology 215:584–589. doi: The Nautilus 126(2):57–67. shall, N. Matzke, D.P. Mindell, E. Revil- 10.1242/jeb.066019 la, and A.B. Smith. 2012. Approaching Lipps, J.H., M. Dunthorn, and T. deVries, M.S., E.A.K. Murphy, and a state-shift in the biosphere. Nature Stoeck. Fossil tintinnids. Pp. 186–197 in S.N. Patek. 2012. Strike mechanics 486:52–58. doi: 10.1038/nature11018 J.R. Dolan, D.S. Montagnes, S. Agatha, of an ambush predator: The spearing D.W. Coats, and D. Stoecker (eds.), The Batavia, M., G. Nguyen, and I. Zucker. mantis shrimp. Journal of Experimental Biology and Ecology of Tintinnid Cili- 2012. The effects of day length, hiberna- Biology 215:4374–4384. doi: 10.1242/ ates: Models for Marine Plankton. Wi- tion, and ambient temperature on incisor jeb.075317 ley/Blackwell, John Wiley & Sons, Ltd. dentin in the Turkish hamster (Mesocri- Encinas, A., K.L. Finger, L.A. Buatois, doi: 10.1002/9781118358092.ch8 cetus brandti). Journal of Comparative and D.E. Peterson.** 2012. Major Physiology B. doi: 10.1007/s00360-012- Martins, L., C.A. Souto, and C. Mene- forearc subsidence and deep-marine 0729-9 gola. 2012. A new genus and new spe- Miocene sedimentation in the present cies of Sclerodactylidae (Holothuroidea: Batavia, M., G. Nguyen, K. Harman, Coastal Cordillera and Longitudinal De- Dendrochirotida) from the south-west- and I. Zucker. 2012. Hibernation pat- pression of south-central Chile (38°30'S– ern Atlantic coast. Zootaxa 3506:54–62. terns of Turkish hamsters: Influence of 41°45'S). Geological Society of America sex and ambient temperature. Journal of Bulletin 124:1262–1277. doi: 10.1130/ Martins, L., C.A. Souto, and C. Mene- Comparative Physiology B. doi: 10.1007/ B30567.1 gola. 2012. First record of Holothuria s00360-012-0706-3 (Theelothuria) princeps and Thyone paw- Finnegan, S., D.A. Fike, D.S. Jones, soni [Echinodermata: Holothuroidea] Belanger, C.L., E. Jablonski, K. Roy, S. and W.W. Fischer. 2012. A temperature- in the South Atlantic Ocean. Marine Berke, A.Z. Krug, and J.W. Valentine. dependent positive feedback on the Biodiversity Records 5:e98. doi: 10.1017/ 2012. Global environmental predictors magnitude of carbon isotope excur- S1755267212000796 of benthic marine biogeographic struc- sions. Geoscience Canada 39(3):122-131. ture. Proceedings of the National Academy http://journals.hil.unb.ca/index.php/ of Sciences 109(35):14046–14051. doi: GC/article/view/19395 see PUBLICATIONS on page 6 2 Other news table at the North Bay Discovery Day in Sonoma County attended by more than On National Fossil Day (October 17), 7,000 people. UCMP graduate students UCMP launched a new and improved Jenna Judge, Camilla Souto, and Tesla “Fossils in US National Parks” website, Monson (see photo above) participated featuring enhanced “searchability” and in the showcase event at AT&T Park at- better fossil data.
Recommended publications
  • The Origins of Dinosauria: Much Ado About Nothing

    The Origins of Dinosauria: Much Ado About Nothing

    View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by RERO DOC Digital Library [Palaeontology, Vol. 57, Part 3, 2014, pp. 469–478] FRONTIERS IN PALAEONTOLOGY THE ORIGINS OF DINOSAURIA: MUCH ADO ABOUT NOTHING by MAX C. LANGER Departamento de Biologia, FFCLRP, Universidade de S~ao Paulo, Av. Bandeirantes 3900,14040-901, Ribeir~ao Preto, SP Brazil; e-mail: [email protected] Typescript received 19 February 2014; accepted in revised form 7 March 2014 Abstract: Research this century has greatly improved our early members of the main dinosauromorph lineages and knowledge of the origin and early radiation of dinosaurs. requires a more meticulous assessment of characters and The unearthing of several new dinosaurs and close out- homologies than those recently conducted. Presently, the groups from Triassic rocks from various parts of the oldest uncontroversial dinosaur records come from Late world, coupled with improved phylogenetic analyses, has Triassic (Carnian) rocks of South America, southern Africa set a basic framework in terms of timing of events and and India, hinting at a south-western Pangaea origin of the macroevolutionary patterns. However, important parts of group. Besides, macroevolutionary approaches suggest that the early dinosauromorph evolutionary history are still the rise of dinosaurs was a more gradual process than pre- poorly understood, rendering uncertain the phylogenetic viously understood. Obviously, these tentative scenarios position of silesaurids as either non-dinosaur Dinosaurifor- need to be tested by new fossil finds, which should also mes or ornithischians, as well as that of various early help close the major gaps recognized in the fossil record of saurischians, such as Eoraptor lunensis and herrerasaurs, as Triassic dinosauromorphs.
  • The Origin and Early Evolution of Dinosaurs

    The Origin and Early Evolution of Dinosaurs

    Biol. Rev. (2010), 85, pp. 55–110. 55 doi:10.1111/j.1469-185X.2009.00094.x The origin and early evolution of dinosaurs Max C. Langer1∗,MartinD.Ezcurra2, Jonathas S. Bittencourt1 and Fernando E. Novas2,3 1Departamento de Biologia, FFCLRP, Universidade de S˜ao Paulo; Av. Bandeirantes 3900, Ribeir˜ao Preto-SP, Brazil 2Laboratorio de Anatomia Comparada y Evoluci´on de los Vertebrados, Museo Argentino de Ciencias Naturales ‘‘Bernardino Rivadavia’’, Avda. Angel Gallardo 470, Cdad. de Buenos Aires, Argentina 3CONICET (Consejo Nacional de Investigaciones Cient´ıficas y T´ecnicas); Avda. Rivadavia 1917 - Cdad. de Buenos Aires, Argentina (Received 28 November 2008; revised 09 July 2009; accepted 14 July 2009) ABSTRACT The oldest unequivocal records of Dinosauria were unearthed from Late Triassic rocks (approximately 230 Ma) accumulated over extensional rift basins in southwestern Pangea. The better known of these are Herrerasaurus ischigualastensis, Pisanosaurus mertii, Eoraptor lunensis,andPanphagia protos from the Ischigualasto Formation, Argentina, and Staurikosaurus pricei and Saturnalia tupiniquim from the Santa Maria Formation, Brazil. No uncontroversial dinosaur body fossils are known from older strata, but the Middle Triassic origin of the lineage may be inferred from both the footprint record and its sister-group relation to Ladinian basal dinosauromorphs. These include the typical Marasuchus lilloensis, more basal forms such as Lagerpeton and Dromomeron, as well as silesaurids: a possibly monophyletic group composed of Mid-Late Triassic forms that may represent immediate sister taxa to dinosaurs. The first phylogenetic definition to fit the current understanding of Dinosauria as a node-based taxon solely composed of mutually exclusive Saurischia and Ornithischia was given as ‘‘all descendants of the most recent common ancestor of birds and Triceratops’’.
  • Integrating Gross Morphology and Bone Histology to Assess Skeletal Maturity in Early Dinosauromorphs: New Insights from Dromomeron (Archosauria: Dinosauromorpha)

    Integrating Gross Morphology and Bone Histology to Assess Skeletal Maturity in Early Dinosauromorphs: New Insights from Dromomeron (Archosauria: Dinosauromorpha)

    Integrating gross morphology and bone histology to assess skeletal maturity in early dinosauromorphs: new insights from Dromomeron (Archosauria: Dinosauromorpha) Christopher T. Griffin1, Lauren S. Bano2, Alan H. Turner3, Nathan D. Smith4, Randall B. Irmis5,6 and Sterling J. Nesbitt1 1 Department of Geosciences, Virginia Tech, Blacksburg, VA, USA 2 Department of Biology, Virginia Tech, Blacksburg, VA, USA 3 Department of Anatomical Sciences, Stony Brook University, Stony Brook, NY, USA 4 The Dinosaur Institute, Natural History Museum of Los Angeles County, Los Angeles, CA, USA 5 Natural History Museum of Utah, University of Utah, Salt Lake City, UT, USA 6 Department of Geology and Geophysics, University of Utah, Salt Lake City, UT, USA ABSTRACT Understanding growth patterns is central to properly interpreting paleobiological signals in tetrapods, but assessing skeletal maturity in some extinct clades may be difficult when growth patterns are poorly constrained by a lack of ontogenetic series. To overcome this difficulty in assessing the maturity of extinct archosaurian reptiles—crocodylians, birds and their extinct relatives—many studies employ bone histology to observe indicators of the developmental stage reached by a given individual. However, the relationship between gross morphological and histological indicators of maturity has not been examined in most archosaurian groups. In this study, we examined the gross morphology of a hypothesized growth series of Dromomeron romeri femora (96.6–144.4 mm long), the first series of a non- dinosauriform dinosauromorph available for such a study. We also histologically sampled several individuals in this growth series. Previous studies reported that Submitted 7 August 2018 D. romeri lacks well-developed rugose muscle scars that appear during ontogeny in Accepted 20 December 2018 closely related dinosauromorph taxa, so integrating gross morphology and Published 11 February 2019 histological signal is needed to determine reliable maturity indicators for early Corresponding author Christopher T.
  • Comparative Bone Microstructure of Three Archosauromorphs from the Carnian, Late Triassic Chañares Formation of Argentina

    Comparative Bone Microstructure of Three Archosauromorphs from the Carnian, Late Triassic Chañares Formation of Argentina

    Comparative bone microstructure of three archosauromorphs from the Carnian, Late Triassic Chañares Formation of Argentina JORDI ALEXIS GARCIA MARSÀ, FEDERICO L. AGNOLÍN, and FERNANDO E. NOVAS Marsà, J.A.G., Agnolín, F.L., and Novas, F.E. 2020. Comparative bone microstructure of three archosauromorphs from the Carnian, Late Triassic Chañares Formation of Argentina. Acta Palaeontologica Polonica 65 (2): 387–398. The Chañares Formation exhibits one of the most important archosauriform records of early Carnian ecosystems. Here we present new data on the palaeohistology of Chañares archosauriforms and provide new insights into their paleobiology, as well as possible phylogenetically informative traits. Bone microstructure of Lagerpeton chanarensis and Tropidosuchus romeri is dominated by fibro-lamellar tissue and dense vascularization. On the other hand, Chanaresuchus bonapartei is more densely vascularized, but with cyclical growth characterized by alternate fibro-lamellar, parallel-fibered and lamellar-zonal tissues. Dense vascularization and fibro-lamellar tissue imply fast growth and high metabolic rates for all these taxa. These histological traits may be tentatively interpreted as a possible adaptative advantage in front of Chañares Formation environmental conditions. Key words: Archosauromorpha, Lagerpeton, Tropidosuchus, paleobiology, paleohistology, Mesozoic, South America. Jordi Alexis Garcia Marsà [[email protected]] and Fernando E. Novas [[email protected]], Labora- torio de Anatomía Comparada y Evolución de los Vertebrados,
  • University of Birmingham the Earliest Bird-Line Archosaurs and The

    University of Birmingham the Earliest Bird-Line Archosaurs and The

    University of Birmingham The earliest bird-line archosaurs and the assembly of the dinosaur body plan Nesbitt, Sterling; Butler, Richard; Ezcurra, Martin; Barrett, Paul; Stocker, Michelle; Angielczyk, Kenneth; Smith, Roger; Sidor, Christian; Niedzwiedzki, Grzegorz; Sennikov, Andrey; Charig, Alan DOI: 10.1038/nature22037 License: None: All rights reserved Document Version Peer reviewed version Citation for published version (Harvard): Nesbitt, S, Butler, R, Ezcurra, M, Barrett, P, Stocker, M, Angielczyk, K, Smith, R, Sidor, C, Niedzwiedzki, G, Sennikov, A & Charig, A 2017, 'The earliest bird-line archosaurs and the assembly of the dinosaur body plan', Nature, vol. 544, no. 7651, pp. 484-487. https://doi.org/10.1038/nature22037 Link to publication on Research at Birmingham portal Publisher Rights Statement: Checked for eligibility: 03/03/2017. General rights Unless a licence is specified above, all rights (including copyright and moral rights) in this document are retained by the authors and/or the copyright holders. The express permission of the copyright holder must be obtained for any use of this material other than for purposes permitted by law. •Users may freely distribute the URL that is used to identify this publication. •Users may download and/or print one copy of the publication from the University of Birmingham research portal for the purpose of private study or non-commercial research. •User may use extracts from the document in line with the concept of ‘fair dealing’ under the Copyright, Designs and Patents Act 1988 (?) •Users may not further distribute the material nor use it for the purposes of commercial gain. Where a licence is displayed above, please note the terms and conditions of the licence govern your use of this document.
  • A Re-Evaluation of the Enigmatic Dinosauriform Caseosaurus Crosbyensis from the Late Triassic of Texas, USA and Its Implications for Early Dinosaur Evolution

    A Re-Evaluation of the Enigmatic Dinosauriform Caseosaurus Crosbyensis from the Late Triassic of Texas, USA and Its Implications for Early Dinosaur Evolution

    A re-evaluation of the enigmatic dinosauriform Caseosaurus crosbyensis from the Late Triassic of Texas, USA and its implications for early dinosaur evolution MATTHEW G. BARON and MEGAN E. WILLIAMS Baron, M.G. and Williams, M.E. 2018. A re-evaluation of the enigmatic dinosauriform Caseosaurus crosbyensis from the Late Triassic of Texas, USA and its implications for early dinosaur evolution. Acta Palaeontologica Polonica 63 (1): 129–145. The holotype specimen of the Late Triassic dinosauriform Caseosaurus crosbyensis is redescribed and evaluated phylogenetically for the first time, providing new anatomical information and data on the earliest dinosaurs and their evolution within the dinosauromorph lineage. Historically, Caseosaurus crosbyensis has been considered to represent an early saurischian dinosaur, and often a herrerasaur. More recent work on Triassic dinosaurs has cast doubt over its supposed dinosaurian affinities and uncertainty about particular features in the holotype and only known specimen has led to the species being regarded as a dinosauriform of indeterminate position. Here, we present a new diagnosis for Caseosaurus crosbyensis and refer additional material to the taxon—a partial right ilium from Snyder Quarry. Our com- parisons and phylogenetic analyses suggest that Caseosaurus crosbyensis belongs in a clade with herrerasaurs and that this clade is the sister taxon of Dinosauria, rather than positioned within it. This result, along with other recent analyses of early dinosaurs, pulls apart what remains of the “traditional” group of dinosaurs collectively termed saurischians into a polyphyletic assemblage and implies that Dinosauria should be regarded as composed exclusively of Ornithoscelida (Ornithischia + Theropoda) and Sauropodomorpha. In addition, our analysis recovers the enigmatic European taxon Saltopus elginensis among herrerasaurs for the first time.
  • Why Much of What We Teach About Evolution Is Wrong/By Jonathan Wells

    Why Much of What We Teach About Evolution Is Wrong/By Jonathan Wells

    ON SCIENCE OR MYTH? Whymuch of what we teach about evolution is wrong Icons ofEvolution About the Author Jonathan Wells is no stranger to controversy. After spending two years in the U.S. Ar my from 1964 to 1966, he entered the University of California at Berkeley to become a science teacher. When the Army called him back from reser ve status in 1968, he chose to go to prison rather than continue to serve during the Vietnam War. He subsequently earned a Ph.D. in religious studies at Yale University, where he wrote a book about the nineteenth­ century Darwinian controversies. In 1989 he returned to Berkeley to earn a second Ph.D., this time in molecular and cell biology. He is now a senior fellow at Discovery Institute's Center for the Renewal of Science and Culture (www.discovery.org/ crsc) in Seattle, where he lives with his wife, two children, and mother. He still hopes to become a science teacher. Icons ofEvolution Science or Myth? Why Much oJWhat We TeachAbout Evolution Is Wrong JONATHAN WELLS ILLUSTRATED BY JODY F. SJOGREN IIIIDIDIREGNERY 11MPUBLISHING, INC. An EaglePublishing Company • Washington, IX Copyright © 2000 by Jonathan Wells All rights reserved. No part of this publication may be reproduced or trans­ mitted in any form or by any means electronic or mechanical, including pho­ tocopy, recording, or any information storage and retrieval system now known or to be invented, without permission in writing from the publisher, except by a reviewer who wishes to quote brief passages in connection with a review written for inclusion in a magazine, newspaper, or broadcast.
  • Microvertebrates of the Lourinhã Formation (Late Jurassic, Portugal)

    Microvertebrates of the Lourinhã Formation (Late Jurassic, Portugal)

    Alexandre Renaud Daniel Guillaume Licenciatura em Biologia celular Mestrado em Sistemática, Evolução, e Paleobiodiversidade Microvertebrates of the Lourinhã Formation (Late Jurassic, Portugal) Dissertação para obtenção do Grau de Mestre em Paleontologia Orientador: Miguel Moreno-Azanza, Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa Co-orientador: Octávio Mateus, Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa Júri: Presidente: Prof. Doutor Paulo Alexandre Rodrigues Roque Legoinha (FCT-UNL) Arguente: Doutor Hughes-Alexandres Blain (IPHES) Vogal: Doutor Miguel Moreno-Azanza (FCT-UNL) Júri: Dezembro 2018 MICROVERTEBRATES OF THE LOURINHÃ FORMATION (LATE JURASSIC, PORTUGAL) © Alexandre Renaud Daniel Guillaume, FCT/UNL e UNL A Faculdade de Ciências e Tecnologia e a Universidade Nova de Lisboa tem o direito, perpétuo e sem limites geográficos, de arquivar e publicar esta dissertação através de exemplares impressos reproduzidos em papel ou de forma digital, ou por qualquer outro meio conhecido ou que venha a ser inventado, e de a divulgar através de repositórios científicos e de admitir a sua cópia e distribuição com objetivos educacionais ou de investigação, não comerciais, desde que seja dado crédito ao autor e editor. ACKNOWLEDGMENTS First of all, I would like to dedicate this thesis to my late grandfather “Papi Joël”, who wanted to tie me to a tree when I first start my journey to paleontology six years ago, in Paris. And yet, he never failed to support me at any cost, even if he did not always understand what I was doing and why I was doing it. He is always in my mind. Merci papi ! This master thesis has been one-year long project during which one there were highs and lows.
  • Back Matter (PDF)

    Back Matter (PDF)

    Index Note: Page numbers in italic denote figures. Page numbers in bold denote tables. Abel, Othenio (1875–1946) Ashmolean Museum, Oxford, Robert Plot 7 arboreal theory 244 Astrodon 363, 365 Geschichte und Methode der Rekonstruktion... Atlantosaurus 365, 366 (1925) 328–329, 330 Augusta, Josef (1903–1968) 222–223, 331 Action comic 343 Aulocetus sammarinensis 80 Actualism, work of Capellini 82, 87 Azara, Don Felix de (1746–1821) 34, 40–41 Aepisaurus 363 Azhdarchidae 318, 319 Agassiz, Louis (1807–1873) 80, 81 Azhdarcho 319 Agustinia 380 Alexander, Annie Montague (1867–1950) 142–143, 143, Bakker, Robert. T. 145, 146 ‘dinosaur renaissance’ 375–376, 377 Alf, Karen (1954–2000), illustrator 139–140 Dinosaurian monophyly 93, 246 Algoasaurus 365 influence on graphic art 335, 343, 350 Allosaurus, digits 267, 271, 273 Bara Simla, dinosaur discoveries 164, 166–169 Allosaurus fragilis 85 Baryonyx walkeri Altispinax, pneumaticity 230–231 relation to Spinosaurus 175, 177–178, 178, 181, 183 Alum Shale Member, Parapsicephalus purdoni 195 work of Charig 94, 95, 102, 103 Amargasaurus 380 Beasley, Henry Charles (1836–1919) Amphicoelias 365, 366, 368, 370 Chirotherium 214–215, 219 amphisbaenians, work of Charig 95 environment 219–220 anatomy, comparative 23 Beaux, E. Cecilia (1855–1942), illustrator 138, 139, 146 Andrews, Roy Chapman (1884–1960) 69, 122 Becklespinax altispinax, pneumaticity 230–231, Andrews, Yvette 122 232, 363 Anning, Joseph (1796–1849) 14 belemnites, Oxford Clay Formation, Peterborough Anning, Mary (1799–1847) 24, 25, 113–116, 114, brick pits 53 145, 146, 147, 288 Benett, Etheldred (1776–1845) 117, 146 Dimorphodon macronyx 14, 115, 294 Bhattacharji, Durgansankar 166 Hawker’s ‘Crocodile’ 14 Birch, Lt.
  • PRISCUM the Newsletter of the Paleontological Society Volume 13, Number 2, Fall 2004

    PRISCUM the Newsletter of the Paleontological Society Volume 13, Number 2, Fall 2004

    PRISCUM The Newsletter of the Paleontological Society Volume 13, Number 2, Fall 2004 Paleontological PRESIDENT’S Society Officers COLUMN: Inside... President Treasurer’s Report 2 William I. Ausich WE NEED YOU! GSA Information 2 President-Elect by William I. Ausich Reviews of PS- David Bottjer Sponsored Sessions 3 Past-President Why are you a member of The Paleontology Portal 5 Patricia H. Kelley The Paleontological Society? In PS Lecture Program 6 Secretary the not too distance past, the Books for Review 9 Roger D. K. Thomas only way to receive a copy of the Journal of Book Reviews 9 Treasurer Paleontology and Paleobiology was to pay your dues Conference Announce- and belong to the Society. I suppose one could Mark E. Patzkowsky have borrowed a copy from a friend or wander over ments 14 JP Managing Editors to the library. However, this was probably done Ann (Nancy) F. Budd with a heavy burden of guilt. Now, as we move Christopher A. Brochu into the digital age of scientific journal publishing, Jonathan Adrain one can have copies of the Journal of Paleontology and Paleobiology transmitted right to your Paleobiology Editors computer. It actually may arrive faster than the Tomasz Baumiller U.S. mail, you do not have to pay anything, and Robyn Burnham you do not even have to walk over to the library. Philip Gingerich No need for shelf space, no hassle, no dues, no Program Coordinator guilt – isn’t the Web great? The Web is great, but the Society needs dues-paying members in order Mark A. Wilson to continue to publish in paper, digitally, or both.
  • SUPPLEMENTARY INFORMATION Doi:10.1038/Nature24011

    SUPPLEMENTARY INFORMATION Doi:10.1038/Nature24011

    SUPPLEMENTARY INFORMATION doi:10.1038/nature24011 1. Details of the new phylogenetic analysis 1.1. Modifications to Baron et al. (2017) data matrix The following list presents all character scoring modifications to the original taxon-character matrix of Baron et al. (2017). Unless explicitly mentioned, specimen numbers without asterisks have been scored from notes and photographs after their first-hand examination by at least one of the authors, specimens marked with † were coded based only on photographic material, and specimens marked with * were coded on direct observation of the specimens. Aardonyx celestae; score modifications based on the first-hand observation of all specimens mentioned in Yates et al. (2010). 19: 0 >1. 21 0 >1. 54: 0 >?. 57: 0 >?. 156: 1 >0. 202: 1 >0. 204: 1 >0. 266: 1 >0. 280: ? >0. Ch 286: 2 >1. 348: 0 >?. 365: ? >1. 376: ? >0. 382: 0 >?. 439: 0 >1. 450: 1 >0. Abrictosaurus consors; score modifications based on NHMUK RU B54†. Further bibliographic source: Sereno (2012). 7: 0>?; 26 0>?; 35. 2>0/1; 47: 0>?; 54 1>?; 369 0>?; 424 1>?. Agilisaurus louderbacki; score modifications based on Barrett et al. (2005) and scorings in Butler et al. (2008) and Barrett et al. (2016). 6: 0>?; 11: 0>1; 35: 1>0; 54: 1>0; 189: ?>0. Agnosphitys cromhallensis; score modifications based on cast of VMNH 1751. Further bibliographic source: Fraser et al. (2001). 15: ? >0; 16: ? >0; 21: ? >1; 24: ? >1; 30: 0 >?; 159: 0 >1; 160: - >0; 164: - >?; 165: ? >0; 167: ? >0; 172: 0 >?; 176: 0 >?; 177: 1 >0; 180: ? >0; 185: 0 >?; 221: 0 >?; 222: 0 >?; 252: 0 >1; 253: 0 >1; 254: 1 >?; 256: 0 >1; 258: 1 >?; 259: ? >0; 292: ? >1; 298: ? >0; 303: 1 >2; 305: 2 >1; 306: ? >2; 315: 1 >0; 317: ? >1; 318: ? >0; 409: ? >0; 411: 1 >0; 419: 1 >0; 421: ? >0.
  • Nyasasaurus Parringtoni Nesbitt Et Al., 2012 El Dinosaurio Que Estábamos Esperando

    Nyasasaurus Parringtoni Nesbitt Et Al., 2012 El Dinosaurio Que Estábamos Esperando

    Nyasasaurus parringtoni (Nesbitt et al ., 2012) ¿El dinosaurio que estábamos esperando? Roberto Díaz Aros Centro de Estudios Paleontológicos de Chile [email protected] RESUMEN : Encontrar un representante del grupo de dinosaurios basales que dio origen a todos los dinosaurios posteriores y más derivados, (saurisquios y ornitisquios), es una tarea que la paleontología ha tenido pendiente desde hace mucho tiempo y desde que comenzaron a aparecer en el registro de fósiles los representantes de los grupos más afines a Dinosauria dentro de Archosauria. PALABRAS CLAVES : Dinosauria, dinosaurio basal. Restos fósiles de Nyasasaurus parringtoni. (Tomado de: Nesbitt et al ., 2012) INTRODUCCIÓN afines a Dinosauria (Owen, 1842) dentro de Archosauria (Cope, 1869). Encontrar un representante del grupo de dinosaurios basales que dio origen a En relación a esta búsqueda del todos los dinosaurios posteriores y más dinosaurio ancestral, el reciente derivados, (saurisquios y ornitisquios), reporte de un dinosaurio muy antiguo es una tarea que la paleontología ha de África, nombrado como tenido pendiente desde hace mucho Nyasasaurus parringtoni (Nesbitt et al ., tiempo y desde que comenzaron a 2012), llama nuevamente la atención aparecer en el registro de fósiles los respecto al origen, evolución y representantes de los grupos más dispersión temprana de los dinosaurios y nos transporta hacia el tiempo en que 1 aparecieron las primeras poblaciones según Brusate et al ., 2010, una de las de dinosaurios en la Tierra como parte diagnosis más aceptadas para el grupo. de una radiación muy amplia del taxón 1.- Uno de estos rasgos es la cresta Dinosauriformes (Novas, 1992) durante deltopectoral que se observa en la zona el Triásico Medio, aspecto que a pesar anteroventral del tercio proximal del de todo el esfuerzo de investigación húmero de Nyasasarus y que permite desplegado hasta el momento, concluir además que el animal permanece como un pasaje evidenciaba un gran desarrollo de los pobremente conocido de la evolución músculos pectorales, comprometidos de los vertebrados.