Anthozoa - Stauriida - Petalaxidae

Full reference: E. W. Bamber and J. Fedorowski. 1998. Biostratigraphy and systematics of Upper Carboniferous cerioid rugose corals, Ellesmere Island, Arctic Canada. Geological Survey of Canada Bulletin 511:1-127

Belongs to Cystolonsdaleia according to E. W. Bamber and J. Fedorowski 1998

Sister taxa: Cystolonsdaleia berthiaumi, Cystolonsdaleia carteri, Cystolonsdaleia danneri, Cystolonsdaleia guaspariniae, Cystolonsdaleia hormos, Cystolonsdaleia neriae, Cystolonsdaleia obesa, Cystolonsdaleia zulloi

Type specimen: Its type locality is GSC C-193090, Agassiz Ice Cap, Ellesmere Island, which is in a Moscovian marine limestone in the Belcher Channel Formation of Canada

Ecology: stationary epifaunal suspension feeder