Crioselache wittigi
Pauliv, Dias, Sedor, Weinschuetz & Ribeiro, 2023
Classification: Holocephali Symmoriiformes Symmoriidae
Reference of the original description
A new symmoriiform shark and other chondrichthyan teeth from the earliest Permian of southern Brazil. Revista Brasileira De Paleontologia, 26(3), 227–237
A new symmoriiform shark and other chondrichthyan teeth from the earliest Permian of southern Brazil. Revista Brasileira De Paleontologia, 26(3), 227–237
Description:
Citation: Crioselache wittigi Pauliv, Dias, Sedor, Weinschuetz & Ribeiro, 2023: In: Database of fossil elasmobranch teeth www.shark-references.com, World Wide Web electronic publication, Version 08/2026
Description
Original diagnosis after Pauliv, Dias, Sedor, Weinschuetz & Ribeiro, 2023 [32525]: A symmoriiform shark only known from an isolated tooth, distinguished from other species of this clade by the following unique combination of characters: tooth with a mesio-distally broad base with a single basolabial projection on its aboral-labial margin and five cusps on its oral-labial margin; median cusp taller than the others and laterally flanked by four accessory cusplets (two on each side), in which the innermost cusplets are taller than the outermost; median cusp with a smooth surface, while the accessory cusplets presents longitudinal and discontinuous smooth cristae; labiolingually compressed median cusp with two smooth lateral carinae on its lateral edges.
Original diagnosis after Pauliv, Dias, Sedor, Weinschuetz & Ribeiro, 2023 [32525]: A symmoriiform shark only known from an isolated tooth, distinguished from other species of this clade by the following unique combination of characters: tooth with a mesio-distally broad base with a single basolabial projection on its aboral-labial margin and five cusps on its oral-labial margin; median cusp taller than the others and laterally flanked by four accessory cusplets (two on each side), in which the innermost cusplets are taller than the outermost; median cusp with a smooth surface, while the accessory cusplets presents longitudinal and discontinuous smooth cristae; labiolingually compressed median cusp with two smooth lateral carinae on its lateral edges.
Remarks
shark-references Species-ID=16592;
type species of Crioselache Pauliv, Dias, Sedor, Weinschuetz & Ribeiro, 2023 [32525] by monotypy (Art. 68.3 ICZN);
shark-references Species-ID=16592;
type species of Crioselache Pauliv, Dias, Sedor, Weinschuetz & Ribeiro, 2023 [32525] by monotypy (Art. 68.3 ICZN);
References
A new symmoriiform shark and other chondrichthyan teeth from the earliest Permian of southern Brazil. Revista Brasileira De Paleontologia, 26(3), 227–237
DOI: 10.4072/rbp.2023.3.07
A new symmoriiform shark and other chondrichthyan teeth from the earliest Permian of southern Brazil. Revista Brasileira De Paleontologia, 26(3), 227–237
DOI: 10.4072/rbp.2023.3.07
