Cephalopoda - Dissidocerida - Geisonoceratidae
Full reference: R. C. Frey. 1995. Middle and Upper Ordovician nautiloid cephalopods of the Cincinnati Arch region of Kentucky, Indiana, and Ohio. U.S. Geological Survey Professional Paper 1066P:1-126
Parent taxon: Geisonoceratidae according to B. Kröger and M. Aubrechtová 2019
See also Kröger 2013 and Kröger and Aubrechtova 2017
Sister taxa: Angeisonoceras, Columenoceras, Geisonoceras, Geisonocerina, Harrisoceras, Joachimoceras, Jonesoceras, Nilssonoceras, Protokionoceras, Striacoceras, Temperoceras, Ugooloceras, Virgoceras
Subtaxa: Ordogeisonoceras amplicameratum Ordogeisonoceras foerstei Ordogeisonoceras tartuensis Ordogeisonoceras uppsalaensis
Type: Orthoceras amplicameratum
Ecology: fast-moving nektonic carnivore
Distribution:
• Ordovician of Canada (3: Ontario collections), Estonia (2), Sweden (6), United States (5: Kentucky, New York)
Total: 16 collections including 20 occurrences
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.