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Ausktribosphenos

Ausktribosphenos is an extinct genus of mammals from the Early Cretaceous of Australia, sometime between 121 - 113 Ma during the Aptian. The only recorded species, Ausktribosphenos nyktos, was found on Flat Rocks in the Wonthaggi Formation, Victoria.

Discovery and naming
The holotype fossil of Ausktribosphenos was found in the Shore platform at Flat Rocks, Bunarong Marine Park, Victoria, Southeastern Australia, and described in 1997. The whole meaning of the name is "The Australian Cretaceous tribosphenic mammal that lived by night". == Description ==
Description
The lower jaw of Ausktribosphenos is roughly in length, with a proposed length of around for the entire animal. Due to all the distinct differences and similarities seen in the fossil material of Ausktribosphenos from other Cretaceous mammals, from the shape of the jaw itself down to the teeth, it was placed into the Mammalia class, but put into its own family, the Ausktribosphenidae. ==References==
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