original description
MacKinnon D.I. (1985). New Zealand late Middle Cambrian molluscs and the origin of Rostroconchia and Bivalvia. <em>Alcheringa.</em> 9(1/2): 65-81. [details]
From editor or global species database
Type locality Trilobite Rock, South Island, which is in a Boomerangian carbonate limestone in the Tasman Formation of New Zealand [details]