Full reference: E. K. Yoo. 1994. Carboniferous Mollusca from the Tamworth Belt, New South Wales, Australia. Records of the Australia Museum 46(2):63-120
Sister taxa: none
Type specimen: ANU F.78437. Its type locality is Kyndalyn. Yoo Loc. 24. Behind Kyndalyn homestead, 10 km S of Somerton, which is in a Chadian/Arundian marine mudstone/limestone in the Merlewood Formation of Australia.