It is known from three species , all of which lived during the Anisian stage of the Middle Triassic .
Stenotosaurus is an extinct genus of capitosaurian temnospondyl within the family Mastodonsauridae .
Stenotosaurus is known from three species , all of which lived during the Anisian stage of the Middle Triassic .
Stenotosaurus is an extinct genus of capitosaurian temnospondyl within the family Mastodonsauridae .