Two partial postcranial skeletons from the Lower Muschelkalk (early Anisian) of Winterswijk, The Netherlands, are described in detail. The specimens were assigned to basal Pistosauroidea, presumably to cf. Cymatosaurus or a closely related taxon. Cymatosaurus is currently the earliest member of the Pistosauroidea and is only known from skull material. Taxonomical assignment is based on humerus morphology and histology, and on morphological differences from other Sauropterygia (Nothosauria and Pachypleurosauria).

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doi.org/10.1007/s12542-013-0181-5
Paläontologische Zeitschrift
Staff publications

Sander, P. Martin, Klein, Nicole, Albers, P., Bickelmann, Constanze& Winkelhorst, Herman. (2013). Postcranial morphology of a basal Pistosauroidea (Sauropterygia) from the Lower Muschelkalk of Winterswijk, The Netherlands. Paläontologische Zeitschrift, 88(1), 55–71.https://doi.org/10.1007/s12542-013-0181-5