''Sibirotherium'' is an extinct genus of

docodont Docodonta is an Order (biology), order of extinct Mesozoic Mammaliaformes, mammaliaforms (advanced cynodonts closely related to true Crown group, crown-group mammals). They were among the most common mammaliaforms of their time, persisting from t ...

mammaliaform. It is known from only a single named species, ''Sibirotherium rossicum'', known from jaw fragments and teeth found in the Early Cretaceous (

Aptian The Aptian is an age (geology), age in the geologic timescale or a stage (stratigraphy), stage in the stratigraphic column. It is a subdivision of the Early Cretaceous, Early or Lower Cretaceous epoch (geology), Epoch or series (stratigraphy), S ...

) aged Ilek Formation in western Siberia, alongside '' Khorotherium'' also from Siberia, it is one of the youngest docodonts.

References

Docodonta Early Cretaceous synapsids of Asia Cretaceous Russia Fossil taxa described in 2002 {{Paleo-cynodont-stub