Hesperiella robertsi Yoo, 1988

Yoo, E. K., 1994, Early Carboniferous Gastropoda from the Tamworth Belt, New South Wales, Australia, Records of the Australian Museum 46 (1), pp. 63-120 : 78

Hesperiella robertsi Yoo

PI. 7 fig. 8

Hesperiella robertsi Yoo, 1988: 241 , figs 36-41.

Additional material. 34 specimens from the type locality, 16 from various horizons at Glenbawn (Localities 29-31) and 8 from south-east of 'Rangari' (Locality 18). 1 from 'Lorrina' (Locality 23).

Geographic distribution. 'Rangari' to Glenbawn.

Geological age. Middle to late Tournaisian.

Remarks. This species is abundant at Glenbawn, and occurs commonly at 'Rangari', but has not been recovered at Swains Gully (Locality 25). A single specimen recovered at 'Lorrina', from a stratigraphically higher horizon in the Namoi Formation, is here temporarily assigned to this species. Figured specimen (PI. 7 fig. 8) is an immature form.