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O. Rieppel. 1999. Variation of cranial characters in Cymatosaurus 'gracilis' Schrammen 1899 (Reptilia, Sauropterygia), and its implications for systematics. Palaeontologische Zeitschrift 73(3/4):369-375
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O. Rieppel. 1997. Revision of the sauropterygian reptile genus Cymatosaurus v. Fritsch, 1894, and the relationships of Germanosaurus Nopcsa, 1928, from the Middle Triassic of Europe. Fieldiana: Geology, new series 36:1-36
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