Mastodonsaurus

Mastodonsaurus Temporal range: Middle Triassic PreꞒ Ꞓ O S D C P T J K Pg N
Skeleton of Mastodonsaurus giganteus in the Staatliches Museum für Naturkunde Stuttgart
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Order:	†Temnospondyli
Suborder:	†Stereospondyli
Clade:	†Capitosauria
Family:	†Mastodonsauridae
Genus:	†Mastodonsaurus Jaeger, 1828
Type species
†Mastodonsaurus jaegeri Holl, 1829
Other species
†M. giganteus (Jaeger, 1828) †M. cappelensis Wepfer, 1923 †M. torvus Konzhukova, 1955
Synonyms
Batrachosaurus? Fitzinger, 1837 Heptasaurus Säve-Söderbergh, 1935 (likely synonym) Labyrinthodon Owen, 1841 Salamandroides Jaeger, 1828

Mastodonsaurus (meaning "teat tooth lizard") is an extinct genus of temnospondyl from the Middle Triassic of Europe. It belongs to a Triassic group of temnospondyls called Capitosauria, characterized by their large body size and presumably aquatic lifestyles. Mastodonsaurus remains one of the largest amphibians known, and may have exceeded 6 meters (20 feet) in length.