Perikoala
Perikoala is an extinct genus of marsupials, related to the modern koala. The genus diverged from a common ancestor of the other koala genera Nimiokoala, Litokoala, and Phascolarctos, which contains the living koala.
Two species are recognised:Perikoala palankarinnica Stirton 1957Perikoala robustus Woodburne et al. 1987