High Quality Content by WIKIPEDIA articles! Rhoetosaurus (meaning "Rhoetos lizard"), named after Rhoetus, a titan in Greek Mythology, is a genus of sauropod dinosaur from the Jurassic (?Middle Jurassic) of what is now eastern Australia. Rhoetosaurus is estimated to have been about 12–15 metres long. Subsequent authors have sometimes misspelled the name: Rhaetosaurus (de Lapparent Laverat, 1955); Rheteosaurus (Yadagiri, Prasad Satsangi, 1979).