Pliocene - Pleistocene
The most recent and
physically largest in size of all the thylacoleonid genera. Members
of this genus range from the size of a large dog to the the size of a small
lion. The most famous member of the genus is the Pleistocene
carnifex, whose remains have been well preserved in various cave deposits
in South Australia and New South Wales.
was a Pliocene species of Thylacoleo which was about the size of
a large dog. Its remains have been recovered from the Chinchilla
Local Fauna of the Chinchilla Sand, southeastern Queensland. Additional
fossils of Thylacoleo referable to this species have been found
in the Allingham Formation (Bluff Downs local fauna) of northern Queensland
and the Bow local fauna of northeastern New South Wales.
The specimen depicted
is a fragment of the left side of the skull with several teeth in very