Ceratosaurian

Phylogeny

Abelisauroidea is a diverse superfamily of ceratosaurians and the sister taxon of Ceratosauridae. It is typically regarded as a Cretaceous group, though the earliest abelisaurid remains are known from the Middle Jurassic of Argentina (classified as the species Eoabelisaurus mefi) and possibly Madagascar (fragmentary remains of an unnamed species). Possible abelisaurid remains (an isolated left tibia, right femur, and right tibia) were also discovered in Late JurassicTendaguru Beds in Tanzania.