Sachs, S. (1997) Mesozoische Reptilien aus Nordrhein-Westfalen. In: Sachs, S., Rauhut, O.W. & Weigert, A. (eds.) 1. Treffen der deutschsprachigen Paläoherpetologen: Düsseldorf 21. bis 23. Februar 1997; extended abstracts. Terra Nostra 97(7): 22-27.
—Fossil reptiles from the Mesozoic are rarities in Nordrhein-Westfalen (western Germany), and the majority of specimens found are only fragmentarily preserved. The first report of a fossil reptile, parts of a mosasaur skeleton from the Upper Cretaceous (Cenoman) of Schöppingen, was published by W. von der Marck already in 1858. Another mosasaur from Haldem (Senon) was described by Pompeckj (1910). Lommerzheim (1976) reported a nearly complete wing of an unidentified pterosaur from the Upper Cretaceous (Turon) of Dinslaken. The present repository of the poorly prepared remain is unknown. The Lower Cretaceous (Berriasian) clay-pit Gerdemann near Gronau yielded plesiosaurs, dinosaurs, and turtles
