Stirtodon

Stirtodon
Temporal range: Late Cretaceous (Cenomanian),
Scientific classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Family: Teinolophidae (?)
Genus: Stirtodon
Species:
S. elizabethae
Binomial name
Stirtodon elizabethae
Flannery et al., 2020

Stirtodon is an extinct genus of monotreme mammal from the Late Cretaceous (Cenomanian) Griman Creek Formation of Australia. The genus contains a single species, S. elizabethae, known from a large isolated premolar. Stirtodon may be the largest toothed monotreme discovered. Several other monotremes are known from the Griman Creek Formation, including Dharragarra, Kollikodon, Opalios, Parvopalus, and Steropodon.