Borestus costatus Yoo PI. 10 figs 1-5 Borestus costatus Yoo, 1988: 242, figs 25-28. Additional material. 3 specimens from south-east of 'Rangari' (Locality 18), 2 from Swains Gully (Locality 25), 4 from 'Marohn' (Locality 28), 3 from Glenbawn (Locality 31). Geographic distribution. 'Rangari' to Glenbawn. Geological age. Early to late Toumaisian.

Published as part of Yoo, E. K., 1994, Early Carboniferous Gastropoda from the Tamworth Belt, New South Wales, Australia, pp. 63-120 in Records of the Australian Museum 46 (1) on page 80, DOI: 10.3853/j.0067-1975.46.1994.18, http://zenodo.org/record/4654599

{"references": ["Yoo, E. K., 1988. Early Carboniferous Mollusca from Gundy, Upper Hunter, New South Wales. Records of the Australian Museum 40 (4): 233 - 264."]}