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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 First Possible Choristoderan Trackway from the Lower
www.nature.com/scientificreports OPEN The frst possible choristoderan trackway from the Lower Cretaceous Daegu Formation of South Korea and its implications on choristoderan locomotion Yuong‑Nam Lee1*, Dal‑Yong Kong2 & Seung‑Ho Jung2 Here we report a new quadrupedal trackway found in the Lower Cretaceous Daegu Formation (Albian) in the vicinity of Ulsan Metropolitan City, South Korea, in 2018. A total of nine manus‑pes imprints show a strong heteropodous quadrupedal trackway (length ratio is 1:3.36). Both manus and pes tracks are pentadactyl with claw marks. The manus prints rotate distinctly outward while the pes prints are nearly parallel to the direction of travel. The functional axis in manus and pes imprints suggests that the trackmaker moved along the medial side during the stroke progressions (entaxonic), indicating weight support on the inner side of the limbs. There is an indication of webbing between the pedal digits. These new tracks are assigned to Novapes ulsanensis, n. ichnogen., n. ichnosp., which are well‑matched not only with foot skeletons and body size of Monjurosuchus but also the fossil record of choristoderes in East Asia, thereby N. ulsanensis could be made by a monjurosuchid‑like choristoderan and represent the frst possible choristoderan trackway from Asia. N. ulsanensis also suggests that semi‑aquatic choristoderans were capable of walking semi‑erect when moving on the ground with a similar locomotion pattern to that of crocodilians on land. South Korea has become globally famous for various tetrapod footprints from Cretaceous strata1, among which some clades such as frogs2, birds3 and mammals4 have been proved for their existences only with ichnological evidence. -
The Geology, Paleontology and Paleoecology of the Cerro Fortaleza Formation
The Geology, Paleontology and Paleoecology of the Cerro Fortaleza Formation, Patagonia (Argentina) A Thesis Submitted to the Faculty of Drexel University by Victoria Margaret Egerton in partial fulfillment of the requirements for the degree of Doctor of Philosophy November 2011 © Copyright 2011 Victoria M. Egerton. All Rights Reserved. ii Dedications To my mother and father iii Acknowledgments The knowledge, guidance and commitment of a great number of people have led to my success while at Drexel University. I would first like to thank Drexel University and the College of Arts and Sciences for providing world-class facilities while I pursued my PhD. I would also like to thank the Department of Biology for its support and dedication. I would like to thank my advisor, Dr. Kenneth Lacovara, for his guidance and patience. Additionally, I would like to thank him for including me in his pursuit of knowledge of Argentine dinosaurs and their environments. I am also indebted to my committee members, Dr. Gail Hearn, Dr. Jake Russell, Dr. Mike O‘Connor, Dr. Matthew Lamanna, Dr. Christopher Williams and Professor Hermann Pfefferkorn for their valuable comments and time. The support of Argentine scientists has been essential for allowing me to pursue my research. I am thankful that I had the opportunity to work with such kind and knowledgeable people. I would like to thank Dr. Fernando Novas (Museo Argentino de Ciencias Naturales) for helping me obtain specimens that allowed this research to happen. I would also like to thank Dr. Viviana Barreda (Museo Argentino de Ciencias Naturales) for her allowing me use of her lab space while I was visiting Museo Argentino de Ciencias Naturales. -
Osteology of the Dorsal Vertebrae of the Giant Titanosaurian Sauropod Dinosaur Dreadnoughtus Schrani from the Late Cretaceous of Argentina
Rowan University Rowan Digital Works School of Earth & Environment Faculty Scholarship School of Earth & Environment 1-1-2017 Osteology of the dorsal vertebrae of the giant titanosaurian sauropod dinosaur Dreadnoughtus schrani from the Late Cretaceous of Argentina Kristyn Voegele Rowan University Matt Lamanna Kenneth Lacovara Rowan University Follow this and additional works at: https://rdw.rowan.edu/see_facpub Part of the Anatomy Commons, Geology Commons, and the Paleontology Commons Recommended Citation 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. This Article is brought to you for free and open access by the School of Earth & Environment at Rowan Digital Works. It has been accepted for inclusion in School of Earth & Environment Faculty Scholarship by an authorized administrator of Rowan Digital Works. 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. -
Reptile Family Tree - Peters 2017 1112 Taxa, 231 Characters
Reptile Family Tree - Peters 2017 1112 taxa, 231 characters Note: This tree does not support DNA topologies over 100 Eldeceeon 1990.7.1 67 Eldeceeon holotype long phylogenetic distances. 100 91 Romeriscus Diplovertebron Certain dental traits are convergent and do not define clades. 85 67 Solenodonsaurus 100 Chroniosaurus 94 Chroniosaurus PIN3585/124 Chroniosuchus 58 94 Westlothiana Casineria 84 Brouffia 93 77 Coelostegus Cheirolepis Paleothyris Eusthenopteron 91 Hylonomus Gogonasus 78 66 Anthracodromeus 99 Osteolepis 91 Protorothyris MCZ1532 85 Protorothyris CM 8617 81 Pholidogaster Protorothyris MCZ 2149 97 Colosteus 87 80 Vaughnictis Elliotsmithia Apsisaurus Panderichthys 51 Tiktaalik 86 Aerosaurus Varanops Greererpeton 67 90 94 Varanodon 76 97 Koilops <50 Spathicephalus Varanosaurus FMNH PR 1760 Trimerorhachis 62 84 Varanosaurus BSPHM 1901 XV20 Archaeothyris 91 Dvinosaurus 89 Ophiacodon 91 Acroplous 67 <50 82 99 Batrachosuchus Haptodus 93 Gerrothorax 97 82 Secodontosaurus Neldasaurus 85 76 100 Dimetrodon 84 95 Trematosaurus 97 Sphenacodon 78 Metoposaurus Ianthodon 55 Rhineceps 85 Edaphosaurus 85 96 99 Parotosuchus 80 82 Ianthasaurus 91 Wantzosaurus Glaucosaurus Trematosaurus long rostrum Cutleria 99 Pederpes Stenocybus 95 Whatcheeria 62 94 Ossinodus IVPP V18117 Crassigyrinus 87 62 71 Kenyasaurus 100 Acanthostega 94 52 Deltaherpeton 82 Galechirus 90 MGUH-VP-8160 63 Ventastega 52 Suminia 100 Baphetes Venjukovia 65 97 83 Ichthyostega Megalocephalus Eodicynodon 80 94 60 Proterogyrinus 99 Sclerocephalus smns90055 100 Dicynodon 74 Eoherpeton -
DIEGO POL CV - Page 1 of 57
DIEGO POL CV - Page 1 of 57 DIEGO POL PERSONAL DATA Name: Diego Pol Passport Number: 23964293 (Argentina) Birth: Rosario, Argentina. June 23rd, 1974. Address: Museo Paleontológico Egidio Feruglio, Av. Fontana 140, Trelew CP 9100, Chubut, Argentina Phone: +54 (2965) 420-012 (ext. 46) Email: [email protected] EDUCATION 2005 Ph.D., Dept of Earth and Environmental Sciences, Columbia University, New York. 2004 M.Phil., Dept of Earth and Environmental Sciences, Columbia University, New York. 2001 M.A., Dept of Earth and Environmental Sciences, Columbia University, New York. 1994-1999 College Degree: Licenciado in Biological Sciences, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Argentina. GPA: 8.65 (out of 10) Theses: Ph.D dissertation: “Phylogenetic relationships of basal sauropodomorph dinosaurs”, 705 pp. Insitution: Columbia University Grade: Straight Pass/Straight Pass Licenciatura thesis: “El esqueleto postcraneano de Notosuchus terrestris y su informacion filogenética”, 185 pp. Insitution: Universidad de Buenos Aires Grade: 10 (out of 10) VERTEBRATE PALEONTOLOGY WORK EXPERIENCE 2015- Principal Researcher CONICET – Museo Paleontológico Egidio Feruglio Trelew, Chubut, Argentina Research on phylogenetic relationships of fossil archosaurs DIEGO POL CV - Page 2 of 57 2011- Independent Researcher CONICET – Museo Paleontológico Egidio Feruglio Trelew, Chubut, Argentina Research on phylogenetic relationships of fossil archosaurs 2006-2010 Adjunct Researcher CONICET – Museo Paleontológico Egidio Feruglio Trelew, Chubut, -
Do Trissico Superior Do Rio Grande Do
Ano 23 - Edição especial VI Simpósio Brasileiro de Paleontologia de Vertebrados Ribeirão Preto - Maio/2008 Paleontologia em Destaque. Edição Especial VI Simpósio Brasileiro de Paleontologia de Vertebrados Editores para esta edição especial: Max C. Langer, Jonathas S. Bittencourt e Mariela C. Castro Tiragem: 200 exemplares. Distribuídos em 27 de maio de 2008. Impressão: Gráfica Martingraf Endereço: Laboratório de Paleontologia, FFCLRP-USP. Av. Bandeirantes 3.900. 14040-901, Ribeirão Preto-SP E-mail: [email protected] Web: http://www.sbpbrasil.org/ Paleontologia em Destaque: boletim informativo da Sociedade Brasileira de Paleontologia. -- Vol. 1, no 1 (1984) - ISSN: 1516-1811 1. Geociências. 2. Paleontologia. 3. Sociedade Brasileira de Paleontologia SOCIEDADE BRASILEIRA DE PALEONTOLOGIA (GESTÃO 2007-2009) Presidente: João Carlos Coimbra (UFRGS) Vice-Presidente: Ana Maria Ribeiro (FZB/RS) 1° Secretário: Marina Bento Soares (UFRGS) 2ª Secretária: Soraia Girardi Bauermann (ULBRA) 1ª Tesoureira: Patrícia Hadler Rodrigues (FZB/RS) 2ª Tesoureira: Karin Elise Bohns Meyer (UFMG) Diretora de Publicações: Carla B. Kotzian (UFSM) 2 VI Simpósio Brasileiro de Paleontologia de Vertebrados Boletim de Resumos Editores Max C. Langer Jonathas S. Bittencourt Mariela C. Castro FFCLRP-USP, Ribeirão Preto-SP 2008 3 Logotipo: A concepção tripartida do logotipo do VI Simpósio Brasileiro de Paleontologia de Vertebrados reflete as três eras do Fanerozóico e suas denominações populares: Paleozóico ou “Era dos Peixes” (representado pelo tubarão Tribodus limae, apesar deste ser do Mesozóico), Mesozóico ou “Era dos Répteis” (representado pelo dinossauro Staurikosaurus pricei) e Cenozóico ou “Era dos Mamíferos” (representado pelo tigre dentes-de-sabre Smilodon populator). Ainda, os três táxons escolhidos são representativos dos, talvez, três mais importantes, ou ao menos mais famosos, depósitos fossilíferos contendo vertebrados no Brasil: a Formação Santana, Cretáceo inferior do sul do Ceará (representada por T. -
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. -
Curriculum Vitae
1 CURRICULUM VITAE NAME: SANKAR CHATTERJEE ADDRESS: Department of Geosciences Museum of Texas Tech University, MS/Box 43191 Lubbock, TX 79409-3191, USA. Phone: (806) 742-1986 Fax: (806) 742-1136 E-mail: [email protected] Website: http://www.gesc.ttu.edu/Fac_pages/chatterjee/ PERSONAL INFORMATION: Born: May 28, 1943, Calcutta, India. U. S. Citizen Married, two boys. PRESENT POSITION: Paul Whitfield Horn Professor of Geosciences and Museum Science; Curator of Paleontology and Director, Antarctic Research Center, Museum of Texas Tech University. EDUCATION: • B. S. in Geology Honors, First in First Class, Jadavpur University, 1962. • M. S. in Applied Geology, First in First Class, Jadavpur University, 1964. • Predoctoral Fellow, London University, 1967-68. • Ph. D. in Geology, Calcutta University, Calcutta, India, 1970. • Postdoctoral Fellow, Smithsonian Institution, 1977-78. ACADEMIC POSITIONS: • Honorary Professor, Indian Institute of Science Education and Research, Calcutta, India, 2010 – Present. • Visiting Professor, Indian Statistical Institute, Calcutta, India, 1996 - Present. • Paul Whitfield Horn Professor & Curator of Paleontology, Texas Tech University, 1994 - Present. • Visiting Professor, Tübingen University, Germany, summer, 1992. • Visiting Professor, Tübingen University, Germany, summer, 1991. • Professor & Curator of Paleontology, Texas Tech University, 1987-1994. • Associate Professor & Curator, Texas Tech University, 1984-87. • Assistant Professor & Curator of Paleontology, Texas Tech University, 1979-84. • Assistant -
View of the Choristodera
“It is the struggle itself that is most important. We must strive to be more than we are. It does not matter that we will not reach our ultimate goal. The effort itself yields its own reward." - Gene Roddenberry University of Alberta The jaw adductor muscles in Champsosaurus and their implications for feeding mechanics by Michael Spencer Brian James A thesis submitted to the Faculty of Graduate Studies and Research in partial fulfillment of the requirements for the degree of Master of Science in Systematics and Evolution Biological Sciences ©Michael Spencer Brian James Fall 2010 Edmonton, Alberta Permission is hereby granted to the University of Alberta Libraries to reproduce single copies of this thesis and to lend or sell such copies for private, scholarly or scientific research purposes only. Where the thesis is converted to, or otherwise made available in digital form, the University of Alberta will advise potential users of the thesis of these terms. The author reserves all other publication and other rights in association with the copyright in the thesis and, except as herein before provided, neither the thesis nor any substantial portion thereof may be printed or otherwise reproduced in any material form whatsoever without the author's prior written permission. Examining Committee Philip J. Currie, Biological Sciences Michael W. Caldwell, Biological Sciences Richard C. Fox, Biological Sciences John Acorn, Renewable Resources Abstract The jaw musculature of Champsosaurus has been enigmatic since the taxon was first described. The extant phylogenetic bracketing method is used to determine the morphology of the jaw adductor musculature. Rotational mathematics is used to calculate the muscle forces, torques, angular accelerations, and angular velocities generated by the jaw muscles. -
Diapsida: Choristodera) from the Lower Cretaceous of Liaoning, China
See discussions, stats, and author profiles for this publication at: https://www.researchgate.net/publication/5339479 Osteology and taxonomic revision of Hyphalosaurus (Diapsida: Choristodera) from the Lower Cretaceous of Liaoning, China Article in Journal of Anatomy · July 2008 Impact Factor: 2.1 · DOI: 10.1111/j.1469-7580.2008.00907.x · Source: PubMed CITATIONS READS 14 20 2 authors, including: Ke-Qin Gao Peking University 63 PUBLICATIONS 1,710 CITATIONS SEE PROFILE All in-text references underlined in blue are linked to publications on ResearchGate, Available from: Ke-Qin Gao letting you access and read them immediately. Retrieved on: 13 June 2016 J. Anat. (2008) 212, pp747–768 doi: 10.1111/j.1469-7580.2008.00907.x OsteologyBlackwell Publishing Ltd and taxonomic revision of Hyphalosaurus (Diapsida: Choristodera) from the Lower Cretaceous of Liaoning, China Ke-Qin Gao1,2 and Daniel T. Ksepka2 1School of Earth and Space Sciences, Peking University, Beijing, China 2Division of Paleontology, American Museum of Natural History, New York, New York, USA Abstract Although the long-necked choristodere Hyphalosaurus is the most abundant tetrapod fossil in the renowned Yixian Formation fossil beds of Liaoning Province, China, the genus has only been briefly described from largely unprepared specimens. This paper provides a thorough osteological description of the type species Hyphalosaurus lingyuanensis and the con-generic species Hyphalosaurus baitaigouensis based on the study of fossils from several research institutions in China. The diagnoses for these two species are revised based on comparison of a large sample of specimens from the type area and horizon of each of the two species. -
The Dentition of Megalosaurid Theropods
The dentition of megalosaurid theropods CHRISTOPHE HENDRICKX, OCTÁVIO MATEUS, and RICARDO ARAÚJO Hendrickx, C., Mateus, O., and Araújo, R. 2015. The dentition of megalosaurid theropods. Acta Palaeontologica Polo- nica 60 (3): 627–642. Theropod teeth are particularly abundant in the fossil record and frequently reported in the literature. Yet, the dentition of many theropods has not been described comprehensively, omitting details on the denticle shape, crown ornamentations and enamel texture. This paucity of information has been particularly striking in basal clades, thus making identification of isolated teeth difficult, and taxonomic assignments uncertain. We here provide a detailed description of the dentition of Megalosauridae, and a comparison to and distinction from superficially similar teeth of all major theropod clades. Megalosaurid dinosaurs are characterized by a mesial carina facing mesiolabially in mesial teeth, centrally positioned carinae on both mesial and lateral crowns, a mesial carina terminating above the cervix, and short to well-developed in- terdenticular sulci between distal denticles. A discriminant analysis performed on a dataset of numerical data collected on the teeth of 62 theropod taxa reveals that megalosaurid teeth are hardly distinguishable from other theropod clades with ziphodont dentition. This study highlights the importance of detailing anatomical descriptions and providing additional morphometric data on teeth with the purpose of helping to identify isolated theropod teeth in the future. Key words: Theropoda, Tetanurae, Megalosauridae, dentition, teeth, morphometry. Christophe Hendrickx [[email protected]] and Octávio Mateus [[email protected]], Universidade Nova de Lisboa, GeoBioTec (formerly CICEGe), Departamento de Ciências da Terra, Faculdade de Ciências e Tec- nologia, Quinta da Torre, 2829-516, Caparica, Portugal; Museu da Lourinhã, 9 Rua João Luis de Moura, 2530-158, Lourinhã, Portugal.