Palaeoscyllium Wagner 1857

Genus †PalaeoscylliumWagner, 1857 Type species. † Palaeoscyllium formosum Wagner, 1857. Diagnosis. Same as for the type species due to monotypy according to ICZN (1999: art. 67 and 68.3). Remarks. Wagner introduced † Palaeoscyllium formosum Wagner, 1857 with a brief and concise description, but which clearly refers to the holotype figured subsequently (Wagner 1861, 1862). A first general description for the genus was provided only later by the same author (see Wagner 1861, 1862), providing characters that were intended for identifying the genus. The identification of additional unique characters for † Palaeoscyllium, including possible tooth features, is here deferred pending the evaluation of other skeletal specimens to be included in the genus (Amadori et al. in prep.). We tentatively consider four holomorphic specimens (CM 4780 [labelled as † “ Phorcynis catulina ”], SMNK-PAL 44950, SNSB-BSPG AS I 589 a-b, and JME SOS 7885 [labelled as † “ Macrourogaleus hassei ”]) that all were recovered from the Upper Jurassic lithographic limestones of the Solnhofen Archipelago as possible members of † Palaeoscyllium, but with species status uncertain, pending further evaluations.