Ptychotrygon pustulata, Kriwet & Nunn & Klug, 2009, 2009

Kriwet, Jürgen, Nunn, Elizabeth V. & Klug, Stefanie, 2009, Neoselachians (Chondrichthyes, Elasmobranchii) from the Lower and lower Upper Cretaceous of north-eastern Spain, Zoological Journal of the Linnean Society 155 (2), pp. 316-347 : 335

PTYCHOTRYGON PUSTULATA SP. NOV. ( FIG. 10M–X )

Derivationn of name: From the Latin word ‘pustulatus’: ‘granulates’, in allusion to the granulated appearance of the occlusal surface of the crown.

Figures

Figure 10. A–H, Ptychotrygon geyeri (Kriwet, 1999a). A–D, anterior tooth. A, labial view. B, lateral view. C, lingual view. D, occlusal view. E–H, lateral (juvenile?) tooth. E, labial view. F, lateral view. G, lingual view. H, occlusal view. I–L, Ptychotrygon sp., lateral tooth. I, labial view. J, lateral view. K, lingual view. L, occlusal view. M–X, Ptychotrygon pustulata sp. nov. M–P, antero-lateral tooth. M, labial view. N, lateral view. O, lingual view. P, occlusal view. Q–T, anterior tooth. Q, labial view. R, lateral view. S, lingual view. T, occlusal view. U–X, lateral tooth. U, labial view. V, lateral view. W, lingual view. X, occlusal view. All scale bars equal 0.5 mm.