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Fossil evidence in Australia for oldest known freshwater crayfish of Gondwana

Martin, Anthony J., Rich, Thomas H., Poore, Gary C.B., Schultz, Mark B., Austin, Christopher M., Kool, Lesley and Vickers-Rich, Patricia 2008, Fossil evidence in Australia for oldest known freshwater crayfish of Gondwana, Gondwana research, vol. 14, no. 3, pp. 287-296, doi: 10.1016/j.gr.2008.01.002.

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Title Fossil evidence in Australia for oldest known freshwater crayfish of Gondwana
Author(s) Martin, Anthony J.
Rich, Thomas H.
Poore, Gary C.B.
Schultz, Mark B.
Austin, Christopher M.ORCID iD for Austin, Christopher M. orcid.org/0000-0003-1848-6267
Kool, Lesley
Vickers-Rich, Patricia
Journal name Gondwana research
Volume number 14
Issue number 3
Start page 287
End page 296
Total pages 10
Publisher Elsevier
Place of publication Amsterdam, The Netherlands
Publication date 2008-10
ISSN 1342-937X
Keyword(s) parastacid
trace fossils
cretaceous
polar
Otway
Strzelecki
Summary Early Cretaceous body and trace fossils in Victoria, Australia, establish the oldest known presence of parastacid crayfish (Decapoda: Astacidea, Parastacoidea) in freshwater environments of Australia, and the oldest known crayfish in Gondwana. Parastacid body fossils, comprised of a partial abdomen (Palaeoechinastacus australianus, gen. et sp. nov.) and two chelae, are from a fluvial deposit in the Otway Group (Albian). Trace fossils in fluvial deposits of the Otway Group and Strzelecki Group (Aptian) also closely resemble modern parastacid burrow systems, supplying independent verification of crayfish presence and their burrowing habits in Australia at this time. Paleoenvironments in this region were high-latitude and periglacial, indicating that these crayfish were adapted to cold-water ecosystems. The combined fossil evidence provides a starting point for the previously unknown paleoecology and evolutionary history of Mesozoic parastacids in Australia, while supporting phylogenies that suggest parastacid radiation from southeastern Australia before the complete breakup of Gondwana.
Language eng
DOI 10.1016/j.gr.2008.01.002
Field of Research 040308 Palaeontology (incl Palynology)
0403 Geology
0404 Geophysics
0402 Geochemistry
Socio Economic Objective 970105 Expanding Knowledge in the Environmental Sciences
HERDC Research category C1.1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2008, International Association for Godwana Research
Persistent URL http://hdl.handle.net/10536/DRO/DU:30091357

Document type: Journal Article
Collection: School of Life and Environmental Sciences
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