Silvabestius is an extinct genus of marsupial dating to the Early Miocene. They were grazing animals about the size of a modern sheep.

Quick Facts Silvabestius Temporal range: Early Miocene, Scientific classification ...

Silvabestius Temporal range: Early Miocene
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Infraclass:	Marsupialia
Order:	Diprotodontia
Family:	†Diprotodontidae
Subfamily:	†Zygomaturinae
Genus:	†Silvabestius Black and Archer, 1997
Type species
Silvabestius johnnilandi Black and Archer, 1997
Species
†S. johnnilandi Black and Archer, 1997 †S. michaelbirti Black and Archer, 1997

Close

This animal is known from two skulls found close together which have come to be known as the "Madonna and Child" fossils.^[1]

Silvabestius was 1 metre in length, with a skull about 25 cm long. It was a herbivore which browsed on soft plant matter such as leaves and stems and lived in an environment that largely consisted of tropical rainforest. Silvabestius is in the family Diprotodontidae and is therefore related to the extinct giant marsupial Diprotodon as well as to living koalas and wombats. Two well preserved Silvabestius skulls were found close together, believed to be from a mother and child, in Riversleigh, Queensland, Australia. The juvenile is believed to have been in the mother's pouch when they died.^{[citation needed]}