Hemilopas mentzeli, an enigmatic marine reptile from the Middle Triassic of Poland revisited
published: Nov 1, 2016
ArtNo. ESP155028202006, Price: 29.00 €
New material from the Muschelkalk of Silesia, southern Poland, is described and attributed to Hemilopas mentzeli v. Meyer, 1851, a species previously considered a nomen dubium. It is here reinstated as a valid taxon on the basis of a newly presented neotype and specific diagnosis. A possible position of Hemilopas mentzeli in a phylogenetic tree of early diapsids, is discussed and its relationship with Saurosphargidae; a family of marine diapsids basal to Sauropterygia is hypothesized. A similar tooth morphology shared by different early diapsids is considered convergent.