Quinkana
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iQuinkana |
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Extinct (fossil)
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Scientific classification | ||||||||||||||
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Quinkana | |
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Type | terrestrial crocodylian |
Diet | carnivore |
Distribution | Australia |
Quinkana is an extinct genus of mekosuchine crocodile that lived in Australia from ~24 million years ago to ~40,000 years ago (in the Pleistocene).
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[edit] Species
The species within Quinkana include : the type species Q. fortirostrum from Queensland of the Pliocene and Pleistocene. Q. babarra from Queensland of the Early Pliocene. Q. timara from the Northern Territory of the Middle Miocene and Q. meboldi from Queensland of the Late Oligocene.
[edit] Size and Form
The early species (Q. meboldi and Q. timara) were small in size compared to the large Plio-Pleistocene species which evolved. Q. fortirostrum has been estimated to have exceeded 5 m in length, making it at the time one of Australia's largest predators.
[edit] Diet and Behaviour
Unlike modern Australian crocodiles, Quinkana was terrestrial and possessed large, recurved and serrated teeth (ziphodont dentition) adapted for slicing animal flesh.
[edit] Closely related species
Quinkana is a genus within the subfamily mekosuchine crocodile. Other genera included in this family are: Australosuchus, Baru, Kambara, Mekosuchus, Pallimnarchus and Trilophosuchus.
[edit] References
- Willis, P.M.A. & Mackness, B. (1996). Quinkana babarra, a new species of ziphodont mekosuchine crocodile from the early Pliocene Bluff Downs Local Fauna, Northern Australia, with a revision of the genus. Proceedings and Journal of the Linnean Society of New South Wales 116: 143-151