Facilitated Program
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
The Skull of the Upper Cretaceous Snake Dinilysia Patagonica Smith-Woodward, 1901, and Its Phylogenetic Position Revisited
Zoological Journal of the Linnean Society, 2012, 164, 194–238. With 24 figures The skull of the Upper Cretaceous snake Dinilysia patagonica Smith-Woodward, 1901, and its phylogenetic position revisited HUSSAM ZAHER1* and CARLOS AGUSTÍN SCANFERLA2 1Museu de Zoologia da Universidade de São Paulo, Avenida Nazaré 481, Ipiranga, 04263-000, São Paulo, SP, Brasil 2Laboratorio de Anatomía Comparada y Evolución de los Vertebrados. Museo Argentino de Ciencias Naturales ‘Bernardino Rivadavia’, Av. Angel Gallardo 470 (1405), Buenos Aires, Argentina Received 23 April 2010; revised 5 April 2011; accepted for publication 18 April 2011 The cranial anatomy of Dinilysia patagonica, a terrestrial snake from the Upper Cretaceous of Argentina, is redescribed and illustrated, based on high-resolution X-ray computed tomography and better preparations made on previously known specimens, including the holotype. Previously unreported characters reinforce the intriguing mosaic nature of the skull of Dinilysia, with a suite of plesiomorphic and apomorphic characters with respect to extant snakes. Newly recognized plesiomorphies are the absence of the medial vertical flange of the nasal, lateral position of the prefrontal, lizard-like contact between vomer and palatine, floor of the recessus scalae tympani formed by the basioccipital, posterolateral corners of the basisphenoid strongly ventrolaterally projected, and absence of a medial parietal pillar separating the telencephalon and mesencephalon, amongst others. We also reinterpreted the structures forming the otic region of Dinilysia, confirming the presence of a crista circumfenes- tralis, which represents an important derived ophidian synapomorphy. Both plesiomorphic and apomorphic traits of Dinilysia are treated in detail and illustrated accordingly. Results of a phylogenetic analysis support a basal position of Dinilysia, as the sister-taxon to all extant snakes. -
SUPPLEMENTARY INFORMATION for a New Family of Diprotodontian Marsupials from the Latest Oligocene of Australia and the Evolution
Title A new family of diprotodontian marsupials from the latest Oligocene of Australia and the evolution of wombats, koalas, and their relatives (Vombatiformes) Authors Beck, RMD; Louys, J; Brewer, Philippa; Archer, M; Black, KH; Tedford, RH Date Submitted 2020-10-13 SUPPLEMENTARY INFORMATION FOR A new family of diprotodontian marsupials from the latest Oligocene of Australia and the evolution of wombats, koalas, and their relatives (Vombatiformes) Robin M. D. Beck1,2*, Julien Louys3, Philippa Brewer4, Michael Archer2, Karen H. Black2, Richard H. Tedford5 (deceased) 1Ecosystems and Environment Research Centre, School of Science, Engineering and Environment, University of Salford, Manchester, UK 2PANGEA Research Centre, School of Biological, Earth and Environmental Sciences, University of New South Wales, Sydney, New South Wales, Australia 3Australian Research Centre for Human Evolution, Environmental Futures Research Institute, Griffith University, Queensland, Australia 4Department of Earth Sciences, Natural History Museum, London, United Kingdom 5Division of Paleontology, American Museum of Natural History, New York, USA Correspondence and requests for materials should be addressed to R.M.D.B (email: [email protected]) This pdf includes: Supplementary figures Supplementary tables Comparative material Full description Relevance of Marada arcanum List of morphological characters Morphological matrix in NEXUS format Justification for body mass estimates References Figure S1. Rostrum of holotype and only known specimen of Mukupirna nambensis gen. et. sp. nov. (AMNH FM 102646) in ventromedial (a) and anteroventral (b) views. Abbreviations: C1a, upper canine alveolus; I1a, first upper incisor alveolus; I2a, second upper incisor alveolus; I1a, third upper incisor alveolus; P3, third upper premolar. Scale bar = 1 cm. -
Megafauna Extinction, Tree Species Range Reduction, and Carbon Storage in Amazonian Forests
Ecography 39: 194–203, 2016 doi: 10.1111/ecog.01587 © 2015 The Authors. Ecography © 2015 Nordic Society Oikos Subject Editor: Yadvinder Mahli. Editor-in-Chief: Nathan J. Sanders. Accepted 27 September 2015 Megafauna extinction, tree species range reduction, and carbon storage in Amazonian forests Christopher E. Doughty, Adam Wolf, Naia Morueta-Holme, Peter M. Jørgensen, Brody Sandel, Cyrille Violle, Brad Boyle, Nathan J. B. Kraft, Robert K. Peet, Brian J. Enquist, Jens-Christian Svenning, Stephen Blake and Mauro Galetti C. E. Doughty ([email protected]), Environmental Change Inst., School of Geography and the Environment, Univ. of Oxford, South Parks Road, Oxford, OX1 3QY, UK. – A. Wolf, Dept of Ecology and Evolutionary Biology, Princeton Univ., Princeton, NJ 08544, USA. – N. Morueta-Holme, Dept of Integrative Biology, Univ. of California – Berkeley, CA 94720, USA. – B. Sandel, J.-C. Svenning and NM-H, Section for Ecoinformatics and Biodiversity, Dept of Bioscience, Aarhus Univ., Ny Munkegade 114, DK-8000 Aarhus C, Denmark. – P. M. Jørgensen, Missouri Botanical Garden, PO Box 299, St Louis, MO 63166-0299, USA. – C. Violle, CEFE UMR 5175, CNRS – Univ. de Montpellier – Univ. Paul-Valéry Montpellier – EPHE – 1919 route de Mende, FR-34293 Montpellier Cedex 5, France. – B. Boyle and B. J. Enquist, Dept of Ecology and Evolutionary Biology, Univ. of Arizona, Tucson, AZ 85721, USA. – N. J. B. Kraft, Dept of Biology, Univ. of Maryland, College Park, MD 20742, USA. BJE also at: The Santa Fe inst., 1399 Hyde Park Road, Santa Fe, NM 87501, USA. – R. K. Peet, Dept of Biology, Univ. of North Carolina, Chapel Hill, NC 27599-3280, USA. -
Snakes of the Siwalik Group (Miocene of Pakistan): Systematics and Relationship to Environmental Change
Palaeontologia Electronica http://palaeo-electronica.org SNAKES OF THE SIWALIK GROUP (MIOCENE OF PAKISTAN): SYSTEMATICS AND RELATIONSHIP TO ENVIRONMENTAL CHANGE Jason J. Head ABSTRACT The lower and middle Siwalik Group of the Potwar Plateau, Pakistan (Miocene, approximately 18 to 3.5 Ma) is a continuous fluvial sequence that preserves a dense fossil record of snakes. The record consists of approximately 1,500 vertebrae derived from surface-collection and screen-washing of bulk matrix. This record represents 12 identifiable taxa and morphotypes, including Python sp., Acrochordus dehmi, Ganso- phis potwarensis gen. et sp. nov., Bungarus sp., Chotaophis padhriensis, gen. et sp. nov., and Sivaophis downsi gen. et sp. nov. The record is dominated by Acrochordus dehmi, a fully-aquatic taxon, but diversity increases among terrestrial and semi-aquatic taxa beginning at approximately 10 Ma, roughly coeval with proxy data indicating the inception of the Asian monsoons and increasing seasonality on the Potwar Plateau. Taxonomic differences between the Siwalik Group and coeval European faunas indi- cate that South Asia was a distinct biogeographic theater from Europe by the middle Miocene. Differences between the Siwalik Group and extant snake faunas indicate sig- nificant environmental changes on the Plateau after the last fossil snake occurrences in the Siwalik section. Jason J. Head. Department of Paleobiology, National Museum of Natural History, Smithsonian Institution, P.O. Box 37012, Washington, DC 20013-7012, USA. [email protected] School of Biological Sciences, Queen Mary, University of London, London, E1 4NS, United Kingdom. KEY WORDS: Snakes, faunal change, Siwalik Group, Miocene, Acrochordus. PE Article Number: 8.1.18A Copyright: Society of Vertebrate Paleontology May 2005 Submission: 3 August 2004. -
Naracoorte Caves National Park
Department for Environment and Heritage Naracoorte Caves National Park Australian Fossil Mammal Site World Heritage Area www.environment.sa.gov.au Naracoorte Caves Vegetation Wonambi Fossil Centre National Par The vegetation is predominantly Brown Stringybark Step through the doors of the Wonambi Fossil Australian Fossil Mammal Site on the limestone ridge, with River Red Gum lining the Centre into an ancient world where megafauna World Heritage Area banks of the Mosquito Creek. The understorey on the once roamed. The display in the Wonambi Fossil ridge is bracken fern over a diverse array of orchids Centre ‘brings to life’ the megafauna fossils found in the Naracoorte Caves. The self-guided walk Naracoorte Caves National Park covers that flower during spring. through the simulated forest and swampland is approximately 600 hectares of limestone wheelchair accessible and suitable for all ages. ranges and is situated in the Some of the park was cleared for pine forests in the south-east of South Australia, mid 1800s, with other exotic species planted around The Flinders University Gallery has information 10 km south of Naracoorte. the caves. Many of the pines have now been cleared and areas revegetated with endemic species. The panels depicting the various sciences studied at Naracoorte, and touch screen computers to answer The area was first gardens now consist of native plants although a few questions you may have relating to the Wonambi dedicated a forestry of the historic trees remain. Fossil Centre and the fossils of Naracoorte Caves. reserve in 1882, with Fauna the first caretaker Southern employed to look Bentwing Bat The National Parks Code after the caves in The most common marsupial seen at Naracoorte is the Western Grey Kangaroo. -
Hdl 128344.Pdf
PUBLISHED VERSION Elizabeth Reed The contribution of cave sites to the understanding of Quaternary Australian megafauna records Proceedings of the 17th International Congress of Speleology, Volume 1 Edition 2, 2017 / Moore, K., White, S. (ed./s), vol.1, pp.2 © 2017 Australian Speleological Federation Inc, This work is licensed under Creative Commons Attribution ShareAlike International License (CC-BY-SA). To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. Individual Authors retain copyright over their work, while allowing the conference to place this unpublished work under a Creative Commons Attribution ShareAlike which allows others to freely access, use, and share the work, with an acknowledgement of the work’s authorship and its initial presentation at the 17th International Congress of Speleology, Sydney NSW Australia.. Published version https://www.caves.org.au/resources/category/37-conference- proceedings?start=40 PERMISSIONS http://creativecommons.org/licenses/by/4.0/ 6 October 2020 http://hdl.handle.net/2440/128344 Te Contribution of Cave Sites to the Understanding of Quaternary Australian Megafauna Records. Elizabeth Reed1,2 Afliation: 1Environment Institute and School of Physical Sciences, Te University of Adelaide, Adelaide, South Australia, AUSTRALIA. 2Palaeontology department, South Australian Museum, Adelaide, South Australia. Abstract Since the frst discoveries of megafauna fossils in the Wellington Valley of New South Wales in the 1830s, caves have featured prominently in the study of Quaternary Australia. Today, most of the well-dated, strati- fed Quaternary megafauna sites are known from caves. Tis refects the relatively stable preservation environment within Australian caves, where skeletal remains may lay undisturbed for hundreds of thousands of years. -
The Asymmetry in the Great American Biotic Interchange in Mammals Is Consistent with Differential Susceptibility to Mammalian Predation
Coversheet This is the accepted manuscript (post-print version) of the article. Contentwise, the accepted manuscript version is identical to the final published version, but there may be differences in typography and layout. How to cite this publication Please cite the final published version: Faurby, S. and Svenning, J.-C. (2016), The asymmetry in the Great American Biotic Interchange in mammals is consistent with differential susceptibility to mammalian predation. Global Ecol. Biogeogr., 25: 1443–1453. doi:10.1111/geb.12504 Publication metadata Title: The asymmetry in the Great American Biotic Interchange in mammals is consistent with differential susceptibility to mammalian predation Author(s): Faurby, S. and Svenning, J.-C. Journal: Global Ecology and Biogeography DOI/Link: https://doi.org/10.1111/geb.12504 Document version: Accepted manuscript (post-print) This is the peer reviewed version of the following article: [Faurby, S. and Svenning, J.-C. (2016), The asymmetry in the Great American Biotic Interchange in mammals is consistent with differential susceptibility to mammalian predation. Global Ecol. Biogeogr., 25: 1443–1453. doi:10.1111/geb.12504], which has been published in final form at [https://doi.org/10.1111/geb.12504]. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving. General Rights Copyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognize and abide by the legal requirements associated with these rights. • Users may download and print one copy of any publication from the public portal for the purpose of private study or research. -
A Diverse Snake Fauna from the Early Eocene of Vastan Lignite Mine, Gujarat, India
A diverse snake fauna from the early Eocene of Vastan Lignite Mine, Gujarat, India JEAN−CLAUDE RAGE, ANNELISE FOLIE, RAJENDRA S. RANA, HUKAM SINGH, KENNETH D. ROSE, and THIERRY SMITH Rage, J.−C., Folie, A., Rana, R.S., Singh, H., Rose, K.D., and Smith, T. 2008. A diverse snake fauna from the early Eocene of Vastan Lignite Mine, Gujarat, India. Acta Palaeontologica Polonica 53 (3): 391–403. The early Eocene (Ypresian) Cambay Formation of Vastan Lignite Mine in Gujarat, western India, has produced a di− verse assemblage of snakes including at least ten species that belong to the Madtsoiidae, Palaeophiidae (Palaeophis and Pterosphenus), Boidae, and several Caenophidia. Within the latter taxon, the Colubroidea are represented by Russel− lophis crassus sp. nov. (Russellophiidae) and by Procerophis sahnii gen. et sp. nov. Thaumastophis missiaeni gen. et sp. nov. is a caenophidian of uncertain family assignment. At least two other forms probably represent new genera and spe− cies, but they are not named; both appear to be related to the Caenophidia. The number of taxa that represent the Colubroidea or at least the Caenophidia, i.e., advanced snakes, is astonishing for the Eocene. This is consistent with the view that Asia played an important part in the early history of these taxa. The fossils come from marine and continental levels; however, no significant difference is evident between faunas from these levels. The fauna from Vastan Mine in− cludes highly aquatic, amphibious, and terrestrial snakes. All are found in the continental levels, including the aquatic palaeophiids, whereas the marine beds yielded only two taxa. -
Variable Impact of Late-Quaternary Megafaunal Extinction in Causing
Variable impact of late-Quaternary megafaunal SPECIAL FEATURE extinction in causing ecological state shifts in North and South America Anthony D. Barnoskya,b,c,1, Emily L. Lindseya,b, Natalia A. Villavicencioa,b, Enrique Bostelmannd,2, Elizabeth A. Hadlye, James Wanketf, and Charles R. Marshalla,b aDepartment of Integrative Biology, University of California, Berkeley, CA 94720; bMuseum of Paleontology, University of California, Berkeley, CA 94720; cMuseum of Vertebrate Zoology, University of California, Berkeley, CA 94720; dRed Paleontológica U-Chile, Laboratoria de Ontogenia, Departamento de Biología, Facultad de Ciencias, Universidad de Chile, Chile; eDepartment of Biology, Stanford University, Stanford, CA 94305; and fDepartment of Geography, California State University, Sacramento, CA 95819 Edited by John W. Terborgh, Duke University, Durham, NC, and approved August 5, 2015 (received for review March 16, 2015) Loss of megafauna, an aspect of defaunation, can precipitate many megafauna loss, and if so, what does this loss imply for the future ecological changes over short time scales. We examine whether of ecosystems at risk for losing their megafauna today? megafauna loss can also explain features of lasting ecological state shifts that occurred as the Pleistocene gave way to the Holocene. We Approach compare ecological impacts of late-Quaternary megafauna extinction The late-Quaternary impact of losing 70–80% of the megafauna in five American regions: southwestern Patagonia, the Pampas, genera in the Americas (19) would be expected to trigger biotic northeastern United States, northwestern United States, and Berin- transitions that would be recognizable in the fossil record in at gia. We find that major ecological state shifts were consistent with least two respects. -
Burrowing Into the Inner World of Snake Evolution 15 March 2018
Burrowing into the inner world of snake evolution 15 March 2018 "So, we compared the inner ears of Yurlunggur and Wonambi to those of 81 snakes and lizards of known ecological habits," Dr. Palci says. "We concluded that Yurlunggur was partly adapted to burrow underground, while Wonambi was more of a generalist, likely at ease in more diverse environments." These interpretations are supported by other features of the skull and skeleton of the two snakes, as well as by palaeoclimate, which implies they had quite different environmental preferences (Wonambi preferred much cooler and drier Credit: Flinders University habitats). Dr. Palci is specialising in the origin, phylogenetic relationships, and evolutionary history and Looking inside the head of a snake is so much diversification of major taxonomic groups, with a easier when the snake is a fossil. special focus on living and fossil squamates (a group of reptiles that includes lizards, Flinders University and South Australian Museum amphisbaenians, and snakes). postdoctoral researcher Alessandro Palci and other evolutionary palaeontology experts have Squamate reptiles, with over 9,000 known species, used high-resolution computer tomography (CT) to represent an ideal study group to investigate look inside the inner ears of two important evolution. Australian fossil snakes – the 23 million-year-old Yurlunggur from northern Australia, and the much The research revolves around several projects in younger Wonambi, from southern Australia, which collaborations with researchers at the South went extinct only about 50,000 years ago. Australian Museum, Flinders University, the University of Adelaide and University of Alberta. These snakes are important because they are considered close to the base of the evolutionary Digital images (see below) of the fossil snakes tree of snakes, and can thus provide some Yurlunggur and Wonambi reveal the inner ear information on what the earliest snakes looked like mostly consists of a large central portion termed and how they lived, says Dr. -
Megafauna Extinction
Episode 15 Teacher Resource 2nd June 2020 Megafauna Extinction 1. Before watching the BTN story, record what you know about Students will learn more about Australian megafauna and megafauna. investigate why they became 2. What is megafauna? extinct. 3. About how many years ago did megafauna exist in Australia? a. 4,000 b. 40,000 c. 400,000 Science – Year 6 The growth and survival of living 4. Complete the following sentence. A Diprotodon was a giant things are affected by physical _________________. conditions of their environment. 5. What did palaeontologist Dr Scott Hocknull and his team discover? Science – Year 7 6. Where did they make the discovery? Scientific knowledge has changed peoples’ understanding of the 7. What did they use to create images of what the megafauna might world and is refined as new have looked like? evidence becomes available. 8. Give some examples of the megafauna species they discovered. Interactions between organisms, 9. What might have caused megafauna to become extinct? including the effects of human 10. What did you learn watching the BTN story? activities can be represented by food chains and food webs. What do you know about megafauna? As a class discuss the BTN Megafauna Extinction story and ask students to record what they learnt watching the story. Record any questions they have. Here are some questions they can use to help guide their discussion. • What does the term megafauna mean? • When did megafauna exist? • How do we know they existed? • Why did megafauna grow so big? • What might have caused Australia’s megafauna to die out? Glossary Students will brainstorm a list of key words and terms that relate to the BTN Megafauna Extinction story. -
Megafauna Fossils
Episode 20 Teacher Resource 1st August 2017 Megafauna Fossils Students will develop a deeper 1. What does the BTN story explain? understanding of Australian megafauna and fossils 2. On which island were fossils found recently? 3. What is the name of someone who studies fossils? a. Ecologist b. Biologist c. Palaeontologist 4. Explain what scientists found on the island. Science – Year 6 5. Name three facts you learnt about the Tasmanian Tiger. The growth and survival of living 6. What does Aaron say about the possibility of the thylacine being alive things are affected by physical conditions of their today? environment (ACSSU094) 7. Describe what a diprotodon looks like. 8. What can the footprints found on Kangaroo Island tell us? Science – Year 7 9. Illustrate an aspect of the story? Scientific knowledge has changed peoples’ understanding of the world 10. What did you like about the Fossil Footprints story? and is refined as new evidence becomes available (ACSHE119) Interactions between organisms, including the effects of human activities can be represented by food chains and food Negotiate with students how many activities they will need to complete. webs(ACSSU112) • Students develop a glossary of words and terms that relate to fossils and megafauna. Below are some words to get them started. Add words and meanings to your glossary as you come across unfamiliar words throughout your research. Consider using pictures and diagrams to illustrate meanings. extinct fossil megafauna palaeontologist thylacine diprotodon • What do you THINK about what you saw in the Megafauna Fossils story? What does this video make you WONDER? o Think of three questions you have about the BTN Megafauna Fossils story.