Postcranial skeleton of Pistosaurus and interrelationships of the Sauropterygia (Diapsida)


  • H.-D. SUES F.L.S.

    1. Redpath Museum, McGill University, 859 Sherbrooke St. West, Montreal, P.Q. H3A 2K6, Canada
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    • *Department of Palcabiology, National Museum of Natural History, Smithonian Institution, Washington, D.C. 20560, U.S.A.


Postcranial remains referable to the enigmatic sauropterygian Pistosaurus longaevus, from the Hauptmuschelkalk (Middle Triassic) of southern Germany, are described and comparisons are made with other sauropterygian groups. A phylogenetic hypothesis of sauropterygian interrelationships is presented. The Sauropterygia are most closely related to the Lepidosauromorpha. Pislosaurus most closely resembles the Plesiosauria in a number of cranial and postcranial features.