Extended Data Fig. 1: Location and geology of the Ischigualasto–Villa Unión Basin.
From: A Triassic stem lepidosaur illuminates the origin of lizard-like reptiles
a, Geologic map of the southern outcrops of the Ischigualasto–Villa Unión Basin. b, Stratigraphic section of the Ischigualasto Formation. Black star indicates the type locality of PVSJ 698. Black line indicates the location of the stratigraphic section.
