many late Early and Middle Triassic ecosystems, following the Permo-Triassic mass
extinction. Erythrosuchids had a worldwide distribution, with well-preserved fossil material
known from South Africa, European Russia, and China. We here redescribe the anatomy
and revise the taxonomy of Guchengosuchus shiguaiensis, which is one of the
stratigraphically oldest erythrosuchids and is known from a single partial skeleton from the …