Allosauroidae: the allosauroid theropods Allosauroidae Allosauroidae were a diverse clade of large theropod dinosaurs known from the Middle Jurassic to the Late Cretaceous. This article outlines their traits, history, notable genera, a…
Aurornis xui: basal bird-like theropod from Late Jurassic–Early Cretaceous China Aurornis Aurornis xui, a basal bird-like theropod from Late Jurassic–Early Cretaceous China, known from a near-complete fossil; its age and primitive features illuminate early avian evoluti…