Cephalopoda - Ellesmerocerida - Protocycloceratidae
Alternative combination: Orthoceras lamarcki
Synonyms: Orthoceras becki Billings 1859, Protocycloceras becki Billings 1859, Protocycloceras whitfieldi Ruedemann 1906, Rhabdocycloceras floweri Zhuravleva 1994
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 Protocycloceras according to D.H. Evans 2011
See also Balashov 1955, Billings 1859, Hyatt 1900, Kröger and Landing 2009, Major and Winsnes 1955 and Ruedemann 1906
Sister taxa: Protocycloceras abnorme, Protocycloceras affine, Protocycloceras arkansasense, Protocycloceras catulus, Protocycloceras debilis, Protocycloceras doniphonense, Protocycloceras furtivum, Protocycloceras gangshanense, Protocycloceras geronticum, Protocycloceras landmarcki, Protocycloceras levisense, Protocycloceras manitouense, Protocycloceras mendax, Protocycloceras odenvillense, Protocycloceras ordinatum, Protocycloceras philipsburgense, Protocycloceras rushense, Protocycloceras smithvillense, Protocycloceras xerxes
Distribution:
• Ordovician of Canada (7: Newfoundland, Newfoundland and Labrador, Quebec collections), the Russian Federation (1), Svalbard and Jan Mayen (1), United States (7: New York, Vermont)
Total: 16 collections including 18 occurrences
Specimen images are retrieved through the ePANDDA API.
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