1. Cranial osteology and systematics of the enigmatic early 'sail-backed' synapsid Echinerpeton intermedium Reisz, 1972, and a review of the earliest 'pelycosaurs'. (18th March 2020) Authors: Mann, Arjan; Paterson, Ryan S. Journal: Journal of systematic palaeontology Issue: Volume 18:Number 6(2020) Page Start: 529 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗