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Polish Polar Research

The Journal of Committee on Polar Research of Polish Academy of Sciences

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Volume 35, Issue 4 (Dec 2014)

New perspectives on the Late Triassic vertebrates of East Greenland: preliminary results of a Polish−Danish palaeontological expedition

Tomasz Sulej / Andrzej Wolniewicz / Niels Bonde
  • Zoological Museum (SNM), Universitetsparken 15, 2100 Copenhagen Ø, Denmark
  • Fur Museum (Muserum Salling), 7884 Fur, Denmark
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Błażej Błażejowski / Grzegorz Niedźwiedzki
  • Subdepartment of Evolutionary Organismal Biology, Evolutionary Biology Center, Uppsala University, Norbyvägen 18A, 752 36 Uppsala, Sweden
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Mateusz Tałanda
  • Zakład Paleobiologii i Ewolucji, Wydział Biologii, Uniwersytet Warszawski, Al. Żwirki i Wigury 101, 02−089 Warszawa, Poland
  • Other articles by this author:
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Published Online: 2014-12-10 | DOI: https://doi.org/10.2478/popore-2014-0030

Abstract

The Fleming Fjord Formation (Jameson Land, East Greenland) documents a diverse assemblage of terrestrial vertebrates of Late Triassic age. Expeditions from the turn of the 21st century have discovered many important fossils that form the basis of our current knowledge of Late Triassic Greenlandic faunas. However, due to the scarcity and incompleteness of the fossils and their insufficient study, our understanding of the taxonomic diversity of the Fleming Fjord Formation is hindered. Here, we report the preliminary findings of a Polish-Danish expedition to the Fleming Fjord Formation that took place in 2014. Three areas were visited – the fairly well known MacKnight Bjerg and Wood Bjerg and the virtually unexplored Liasryggen. MacKnigth Bjerg and Liasryggen yielded fossils which promise to significantly broaden our knowledge of vertebrate evolution in the Late Triassic. Stem-mammal remains were discovered at Liasryggen. Other fossils found at both sites include remains of actinopterygians, sarcopterygians, temnospondyl amphibians and various archosaurs (including early dinosaurs). Numerous vertebrate trace fossils, including coprolites, pseudosuchian footprints, theropod and sauropodomorph dinosaur tracks, were also discovered. Newly discovered skeletal remains as well as abundant trace fossils indicate higher tetrapod diversity in the Late Triassic of Greenland than previously thought. Trace fossils also allow inferences of early theropod and sauropodomorph dinosaur behaviour.

Key words:: Arctic; Greenland; stem−mammals; dinosaurs; footprints; Fleming Fjord Formation; Late Triassic

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About the article

Published Online: 2014-12-10


Citation Information: Polish Polar Research, ISSN (Online) 2081-8262, DOI: https://doi.org/10.2478/popore-2014-0030.

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© 2014 Polish Academy of Sciences. This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License. BY-NC-ND 3.0

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