Urdyella tridenta, Leu & Bucher & Vennemann & Bagherpour & Ji & Brosse & Goudemand, 2022

Leu, Marc, Bucher, Hugo, Vennemann, Torsten, Bagherpour, Borhan, Ji, Cheng, Brosse, Morgane & Goudemand, Nicolas, 2022, A Unitary Association-based conodont biozonation of the Smithian-Spathian boundary (Early Triassic) and associated biotic crisis from South China, Swiss Journal of Palaeontology (19) 141 (1), pp. 1-61 : 51

Urdyella tridenta n. sp.

Fig. 26 X-AA

Etymology: Te species is named after the trident, Poseidon’s weapon in the Greek mythology.

Holotype. Specimen illustrated in Fig. 26 AA.

Paratype. Specimens illustrated in Fig. 26Z .

Number of specimens. 5

Diagnosis. Coniform P 1 element with three subequally long and slightly recurved denticles all attached to the basal cup. Deep, teardrop shaped basal cavity. No clear anterior process.

Remarks. Te P 1 element of this species is very similar to the one of Urdyella unicorna n. sp. except for the lack of an anterior process and the fact that the single large cusp of Urdyella unicorna n. sp. is replaced by three subequally long denticles in Urdyella tridenta n. sp.

Occurrence. Laren road cut, Luolou Formation, Smithian age, Nanpanjiang basin, South China (this paper).

Figures

Fig. 26 (See legend on previous page.)