Estemmenosuchus

Estemmenosuchus Temporal range: Guadalupian (Wordian), 267 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓
E. uralensis skeleton
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Clade:	Synapsida
Clade:	Therapsida
Suborder:	†Dinocephalia
Family:	†Estemmenosuchidae
Genus:	†Estemmenosuchus Tchudinov, 1960
Species
†E. uralensis Tchudinov, 1960 (type) †E. mirabilis Tchudinov, 1968
Synonyms
Anoplosuchus tenuirostris Tchudinov, 1968 Zopherosuchus luceus Tchudinov, 1963

Estemmenosuchus (meaning "crowned crocodile" in Greek) is an extinct genus of large, early omnivorous therapsid. It is believed and interpreted to have lived during the middle part of the Middle Permian around 267 million years ago. The two species, E. uralensis and E. mirabilis, are characterised by distinctive horn-like structures, which were probably used for intra-specific display. Both species of Estemmenosuchus are from the Perm (or Cis-Urals) region of Russia. Two other estemmenosuchids, Anoplosuchus and Zopherosuchus, are now considered females of the species E. uralensis.^[1] There were many complete and incomplete skeletons found together.