Pyramios alcootense was a large diprotodontid, known from the late Miocene fossil beds of Alcoota Station in the Northern Territory, where it is considered rare. It is thought to be the oldest species of the subfamily Diprotodontinae.
Skeletal element: Cranium
Specimen number: NTM P4190
Geological age: Miocene
Locality/site: Alcoota Local Fauna
State/territory: Northern Territory
Skeletal element: Mandible
Specimen number: NTM P4191
Geological age: Miocene
Locality/site: Alcoota Local Fauna
State/territory: Northern Territory
Woodburne, M. O. (1967). Three new diprotodontids from the Tertiary of the Northern Territory, Australia. Bulletin of the Bureau of Mineral Resources, Geology and Geophysics, Australia, 85, 55-103.