Promastodonsaurus

Promastodonsaurus ("before Mastodonsaurus") is an extinct genus of capitosauroid temnospondyls within the family Mastodonsauridae.^[1] Fossils of the genus were found in the Ischigualasto Formation of the Ischigualasto-Villa Unión Basin in northwestern Argentina.^[2]

Promastodonsaurus Temporal range: Carnian ~231.7–225 Ma PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Order:	†Temnospondyli
Suborder:	†Stereospondyli
Clade:	†Capitosauria
Family:	†Mastodonsauridae
Genus:	†Promastodonsaurus Bonaparte 1963
Type species
†Promastodonsaurus bellmani Bonaparte 1963