6.7 Genus Praeaulacon Rasnitsyn, 1972 †

Praeaulacon Rasnitsyn, 1972: 79 [diag.]; Zhang & Rasnitsyn, 2008: 474 [rediag.]

Type species: Praeaulacon elongatus Rasnitsyn, 1972 .

Number of valid species from China: 2.

(1) Praeaulacon ningchengensis Zhang & Rasnitsyn, 2008 —Middle Jurassic.

Praeaulacon ningchengensis: Zhang & Rasnitsyn, 2008: 466 [in key], 475 [descr., holotype: NND2034/ NIGP 148225, fig.9; Pl. 3, fig. 3] .

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

(2) Praeaulacon elegantulus Zhang & Rasnitsyn, 2008 —Middle Jurassic.

Praeaulacon elegantulus: Zhang & Rasnitsyn, 2008: 466 [in key], 475–476 [descr., holotype: NND0621/ NIGP 148226 a, NND0622/ NIGP 148226 b fig.10; Pl. 3, fig. 2] .

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