Weigeltisaurus

Coelurosauravus jaekeli is an extinct species of weigeltisaurid reptile from the Late Permian of Germany and England. Originally named as Palaechamaeleo jaekeli in 1930, it was later assigned the name Weigeltisaurus jaekeli in 1939, when it was revealed that Palaeochamaeleo was a preocuppied name. A 1987 review later lumped Weigeltisaurus jaekeli under Coelurosauravus as a second species of that genus. A 2015 study considered Weigeltisaurus to be a unique genus once again.