Full reference: A. B. Shaw. 1957. Paleontology of Northwestern Vermont. VI. The early Middle Cambrian fauna. Journal of Paleontology 31(4):785-792
Type specimen: MCZ 9353, a shell. Its type locality is SA-C-8, which is in a St Davids carbonate limestone/shale in the Parker Slate Formation of Vermont.
Ecology: stationary epifaunal suspension feeder