Fig. 6. Platypterygiine ophthalmosaurid Platypterygius hercynicus Kuhn, 1946, SMSS "SGS", holotype, from the late Aptian of Salzgitter, Germany. Skull roof of the type−specimen in dorsal view. A. Photograph. B. Interpretative drawing by Kolb and Sander (2009). C. Reinterpretation based on the nasal morphology of MHNH 2010.4 and on a cast of SMSS "SGS". As in MHNH 2010.4 (see Fig. 2), the nasal is markedly elongated anteriorly and wide posteriorly, overlapping the postfrontal extensively. The nasal is coloured grey. The foramen situated at the nasal−frontal suture is interpreted as the internasal foramen, and the holotype lacks the parietal foramen and most of the frontal. Illustrations borrowed from Kolb and Sander (2009) and used with the permission of both authors.