Illaenus sp. 3

Fig. 14.12

1917 Illaenus cf. esmarki Schloetheim; Reed pl. 7, fig. 14; pl. 8, figs 1,2.

Material. Cranidium, Fig. 14.12 (Reed, 1917, pl. 8, figs 1,2), GSI 11905; cranidium (Reed, 1917, pl. 7, fig. 14), GSI 11903. Both specimens from Shihtien Formation (Darriwilian) at Pupiao, western Yunnan.

Remarks. We refigure one of the two cranidia figured by Reed (1917). He figured a detail of an external mould showing strong terrace ridges on the front of the cephalic shield, and this feature is suggested also on the internal surface. There are few other features, and a critical determination is impossible without further material.