Rostroconchia - Conocardiida - Eopteriidae
Alternative combinations: Conocardium blumenbachium, Euchasma blumenbachia, Euchasma blumenbachii
Full reference: E. Billings. 1859. Fossils of the Calciferous Sandrock, including those of a deposit of white limestone at Mingan, supposed to belong to the formation. The Canadian Naturalist and Geologist 4:345-367
Belongs to Euchasma according to P. J. Wagner 2023
See also Billings 1859, Billings 1865, Boyce et al. 2000, Kobayashi 1933, Logan et al. 1863, Pojeta and Runnegar 1976, Rohr et al. 2008, Twenhofel 1938 and Wagner 1997
Sister taxa: Euchasma caseyi, Euchasma colliveri, Euchasma eopteriformis, Euchasma jonesi, Euchasma multistriata, Euchasma mytiliforme, Euchasma swarkoi
Type specimen: GSC 445, a shell. Its type locality is Pillage Bay, Mingan Islands, which is in a Cassinian carbonate dolomite in the Romaine Formation of Canada.
Distribution:
• Ordovician of Canada (14: Newfoundland, Newfoundland and Labrador, Quebec collections), the United Kingdom (3), United States (2: Virginia)
Total: 19 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.