Rhynchonellata - Rhynchonellida - Pontisiidae

Alternative combination: Cyrolexis antearcus

Full reference: G. Xu and R. E. Grant. 1994. Brachiopods near the Permian-Triassic boundary in South China. Smithsonian Contributions to Paleobiology 76:1-68

Belongs to Prelissorhynchia according to S. Z. Shen and G. R. Shi 2007

Sister taxa: Prelissorhynchia dorashamensis, Prelissorhynchia pavonine, Prelissorhynchia plena, Prelissorhynchia pseudoutah, Prelissorhynchia subrotunda, Prelissorhynchia triplicatioid

Type specimen: Its type locality is Huayingshan Section, Linshui County, which is in a Changhsingian carbonate limestone in the Changxing Formation of China

Average measurements (in mm): shell 7.54 x 8.67