Cephalopoda - Tarphycerida - Estonioceratidae
Full reference: A. Hyatt. 1894. Phylogeny of an acquired characteristic. Proceedings of the American Philosophical Society 32(143):349-647
Parent taxon: Estonioceratidae according to D.H. Evans 2011
See also Crick 1981, Kröger and Landing 2008, Teichert et al. 1964 and Ulrich et al. 1942
Sister taxa: Aethoceras, Alaskoceras, Clytoceras, Deltoceras, Eichwaldoceras, Estonioceras, Pycnoceras, Shumardoceras, Tragoceras
Subtaxa: Aphetoceras americanum Aphetoceras attenuatum Aphetoceras boreale Aphetoceras evolutum Aphetoceras farnsworthi Aphetoceras oderi Aphetoceras ozarkensis Aphetoceras ruedemanni Aphetoceras subcostulatum
Type: Aphetoceras americanum
Ecology: fast-moving nektobenthic carnivore
Distribution:
• Arenig of China (1 collection)
• Ordovician of Canada (3: Newfoundland and Labrador, Quebec), China (1), the United Kingdom (1), United States (11: Missouri, New York, Tennessee, Texas)
Total: 17 collections including 20 occurrences
Specimen images are retrieved through the ePANDDA API.