Sellosaurus In 1932, Von Huene assigned new material to Palaeosaurus; numerous prosauropod bones found in Germany. Because of Owen's Thecodontosaurus bones misassigned to Palaeosaurus cylindrodon, the species was thought to be a prosauropod. Von Huene therefore referred his new species to Palaeosaurus, creating the name P. diagnostica. In 1973, Peter Galton, a British paleontologist, moved the species into its own genus, creating the new combination Efraasia diagnosticus. For several decades, most scientists considered Efraasia a junior synonym of Sellosaurus; however, in 2003 Adam Yates, another British palaeontologist, redescribed the bones assigned to Sellosaurus. He resurrected the genus Efraasia for some of these bones, to which he also assigned the bones that had been first described as Teratosaurus minor as well (although leaving out the teeth, which were recognized as non-dinosaurian). Like Galton in 1973, Yates's Efraasia also included the remains previously known as Palaeosaurus diagnosticus, although unlike Galton, Yates calls the species Efraasia minor, synonymizing both species. E. minor was claimed to have priority because von Huene described Teratosaurus minor several pages before Palaeosaurus diagnosticus in his 1908 publication. The name minor therefore would take precedence over diagnostica for this species. Species Type species: "Palaeosaurus" cylindrodon (nomen dubium) Riley and Stutchbury 1836 (an indeterminate archosauromorph later renamed the type species of Palaeosauriscus cylindrodon, as Palaeosaurus was pre-occupied) Other species: "Palaeosaurus" fraserianus (nomen dubium) Cope 1878 (an indeterminate sauropodomorph later renamed to Palaeosauriscus fraserianus) "Palaeosaurus" platyodon (nomen dubium) Riley and Stutchbury 1836 (an indeterminate phytosaur later renamed the type species of the genus Rileya) "Palaeosaurus" stricklandi (nomen dubium) Davis 1881 (an indeterminate phytosaur later transferred to the genus Palaeosauriscus) "Palaeosaurus" diagnosticus Fraas, 1912 (alternatively spelled P. diagnostica, described by Eberhard Fraas in 1912, and re-classified as P.? diagnosticus be von Huenn in 1936; now assigned to Efraasia. See also Rileyasuchus Efraasia References Late Triassic reptiles of Europe Prehistoric reptile genera Prehistoric archosaurs Fossil taxa described in 1840