Rieppel, O. 1994 The braincases of <em>Simosaurus</em> and <em>Nothosaurus</em>: monophyly of the Nothosauridae (Reptilia: Sauropterygia) Journal of Vertebrate Paleontology 14 9-23 Neodiapsida Pachypleurosauroidea Corosaurus Simosaurus Cymatosaurus Nothosaurus Paranothosaurus Lariosaurus Ceresiosaurus Osteology Maximum Parsimony Based on reanalysis of the original matrix. Rieppel_1994a