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 giganteus (Jaeger, 1828)
Other species
†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 amphibian from the Middle Triassic of Europe. It belongs to a Triassic group of temnospondyls called Capitosauria, characterized by their large body size, large flattened skulls, and probably mainly aquatic lifestyles. Mastodonsaurus remains one of the largest amphibians known, and may have exceeded 6 meters (20 feet) in length.