Spathicuspus, 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 : 49

Spathicuspus n. sp. A

Fig. 13M, P

2005 Neospathodus spathi Sweet ; Gaetani et al., p. 288, pl. 1, fig. 2

2015 Spathicuspus spathi (Sweet) ; Chen et al., p. 112, fig. 8.16–8.17.

2015 Spathicuspus spathi (Sweet) ; Lehrmann et al., p. 123, fig. 5.28.

2016 Spathicuspus spathi (Sweet) ; Liang et al., p. 385, fig. 4.10.

Number of specimens:>10

Description. Short segminate P1 element with large, terminal, reclined or recurved cusp. Only two anterior denticles. Basal cavity is drop-shaped.

Remarks. Very similar to Spathicuspus ? n. sp. B (see below), but much shorter and with a larger basal cavity. Similar elements have been illustrated from other Chinese sections by Chen et al. (2015) and Liang et al. (2016) and hence this species may be useful as an index fossil for intrabasinal correlations.

Occurrence. South China: Luolou Formation, Spathian, Nanpanjiang basin, Mingtang section, ( Liang et al., 2016) Upper Guandao section, ( Lehrmann et al., 2015), Triassospathodus homeri zone, Jiarong ( Chen et al., 2015).

Figures

Fig. 13 (See legend on previous page.)