Tedorosaurus is a genus of extinct lizard-like reptile known from Callovian (Middle Jurassic) section of the Fukui Prefecture, Japan.[1] This genus is represented by single species Tedorosaurus asuwaeneis. It is the first Mesozoic terrestrial reptile fossil from Japan.[2]
T. asuwaeneis is described by Shikama Tokio in 1969, from Sakaidera Formation in the Tetori Group.[3] Fossil is first discovered by a junior high school student, and the type specimen is privately owned by a teacher who is also a fossil collector.[4] With total length is bit over 10cm (00inches), it had relatively long hindlegs. Due to the specimen is in the private collection, its identification is uncertain.