6.8 Genus Sinaulacogastrinus Zhang & Rasnitsyn, 2008 †

Sinaulacogastrinus: Zhang & Rasnitsyn, 2008: 481 [diag.].

Type species: Sinaulacogastrinus eucallus Zhang & Rasnitsyn, 2008

Number of valid species from China: 2.

(1) Sinaulacogastrinus eucallus Zhang & Rasnitsyn, 2008 —Middle Jurassic.

Sinaulacogastrinus eucallus: Zhang & Rasnitsyn, 2008: 465 [in key], 481 [descr., holotype: NND0772/ NIGP 148232, fig.15; Pl. 5, fig. 4] .

Distribution: China (Inner Mongolia) (Zhang & Rasnitsyn 2008).

(2) Sinaulacogastrinus solidus Rasnitsyn & Zhang, 2010 —Middle Jurassic.

Sinaulacogastrinus solidus: Rasnitsyn & Zhang, 2010: 853 [descr., holotype: NND2569/ NIGP 151946, fig.15b; Plate VI-6,7] .

Distribution: China (Inner Mongolia) (Rasnitsyn & Zhang 2010).