Anatomical notes and discussion of the first described aetosaur Stagonolepis robertsoni (Archosauria: Suchia) from the Upper Triassic of Europe, and the use of plesiomorphies in aetosaur biochronology
Stagonolepis robertsoni, from the Late Triassic of Scotland, was the first named aetosaurian.Known mostly from a series of natural molds from two localities, the osteology of this taxon has been difficult to interpret.Detailed work on this material ohio state dart flights in the late 1950s resulted in a monograph that set the standard for the under