Orthopus

Orthopus
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Clade: Synapsida
Genus: Orthopus
Kutorga, 1838

Orthopus, from Ancient Greek ὀρθός (orthós), meaning "straight", and πούς (poús), meaning "foot", is an extinct genus of non-mammalian synapsids. It is based on a partial humerus that closely resembles Estemmenosuchus, in the limited comparisons possible.