Cranial ontogenetic variation in early saurischians and the role of heterochrony in the diversification of predatory dinosaurs
Non-avian saurischian skulls underwent at least 165 million years of evolution and shapes varied from elongated skulls, such as in the theropod Coelophysis, to short and box-shaped skulls, such as in the sauropod Camarasaurus.A number of factors have long been considered to drive skull shape, including phylogeny, dietary preferences and functional