Paludirex gracilis (Willis & Molnar, 1997)



Taxonomy & Nomenclature

Synonym/s: Pallimnarchus gracilis Willis & Molnar, 1997 (original combination)


Conservation Status


Last record: Late Pleistocene (Ristevski et al., 2020)



eastern Australia


Biology & Ecology










Original scientific description:

Willis, P. M. A. and Molnar, Ralph E. (1997). Identification of large reptilian teeth from Plio-Pleistocene deposits of Australia. Journal and Proceedings of the Royal Society of New South Wales 130(3-4): 79-92.


Other references:

Archer, Michael, Arena, Derrick A. et al. (2006). Current status of species-level representation in faunas from selected fossil localities in the Riversleigh World Heritage Area, northwestern Queensland. Alcheringa, Special Issue 1: 1-17.

Dodson, John et al. (1993). Humans and megafauna in a late Pleistocene environment from Cuddie Springs, north western New South Wales. Archaeology in Oceania 28(2): 94-99.

Hocknull, Scott A. et al. (2020). Extinction of eastern Sahul megafauna coincides with sustained environmental deterioration. Nature Communications 11: 2250.

Ristevski J, Yates AM, Price GJ, Molnar RE, Weisbecker V, Salisbury SW. (2020). Australia’s prehistoric ‘swamp king’: revision of the Plio-Pleistocene crocodylian genus Pallimnarchus de Vis, 1886. PeerJ 8:e10466

Ristevski, Jorgo et al. (2023). Migrations, diversifications and extinctions: the evolutionary history of crocodyliforms in Australasia. Alcheringa.

Roberts, Richard G, Flannery, Timothy F., Ayliffe, Linda, Yoshida, Hiroyuki, Olley, Jon M., Prideaux, Gavin J., Laslett, Geoff M., Baynes, Alexander, Smith, M. A., Jones, Rhys I. and Smith, Barton L. (2001). New ages for the last Australian megafauna: Continent-wide extinction about 46,000 years ago. Science 292(5523): 1888-1892.

Sobbe IH, Price GJ, Knezour RA. 2013. A ziphodont crocodile from the late Pleistocene King Creek catchment, Darling Downs, Queensland. Memoirs of the Queensland Museum-Nature 56(2):601-606


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