Motani, R. Jiang, D.-Y. Chen, G.-B. Tintori, A. Rieppel, O. Ji, C. Huang, J.-D. 2015 A basal ichthyosauriform with a short snout from the Lower Triassic of China Nature 517 485-488 Seymouriidae Synapsida Parareptilia Captorhinidae Araeoscelidia Rhynchocephalia Squamata Prolacerta Trilophosaurus Rhynchosauria Archosauriformes Claudiosaurus Coelurosauravus Kuehneosauridae Acerosodontosaurus Tangasaurus Youngina Thadeosaurus Lanthanolania Orovenator Sophineta Pamelina Tanystropheus Choristodera Macrocnemus Hovasaurus Pachypleurosaurs Simosaurus Placodus Pistosauridae Askeptosaurus Clarazia Thalattosaurus Helveticosaurus Largocephalosaurus Sinosaurosphargis Wumengosaurus Nanchangosaurus Hupehsuchus Chaohusaurus Utatsusaurus Cartorhynchus Osteology Maximum Parsimony Based on reanalysis of the original matrix. Motani_etal_2015aa