Cladodontomorphi, Ginter, Hampe, and Duffin, 2010

Ginter, Michał & Złotnik, Michał, 2019, Mississippian chondrichthyan fishes from the area of Krzeszowice, southern Poland, Acta Palaeontologica Polonica 64 (3), pp. 549-564 : 556

Cladodontomorphi indet. 2

Fig. 5D .

Material.— One tooth (ZPAL P. IV/308) from the upper Viséan, Czerna, sample Cz-1.

Remarks.— At first sight the specimen looks like a large falcatid tooth, with the long and relatively slender median cusp covered with dense cristae, and the intermediate cusplets histologically separate from the main cusps. However, the trapezoidal, lingually widening base and the labio-lingual compression of the median cusp make it closer to the ctenacanthiforms. Therefore, the order cannot be determined with certainty.

Figures

Fig. 5. Chondrichthyan fish teeth from the upper Viséan of Czerna, Poland. A, B. Cladodontomorphi indet. 1. A. ZPAL P. IV/255 in labial (A1) and basal (A2) views. B. ZPAL P. IV/306, small specimen with a broken piece lying nearby in lingual (B1) and oral (B2) views. C. Ctenacanthidae indet., ZPAL P. IV/307 in oral (C1) and labial (C2) views. D. Cladodontomorphi indet. 2, ZPAL P. IV/308 in labial (D1), lingual (D2), and oral (D3) views. E. Cassisodus sp., ZPAL P. IV/309 in oral (D1) and lingual (D2) views. F. Cassisodus sp., ZPAL P. IV/232 in lingual (E1) and oral (E2) views.