Cephalopoda - Actinocerida - Ruedemannoceratidae
Parent taxon: Actinocerida according to A. Pohle et al. 2022
See also Crick 1981, Sweet 1958, Teichert et al. 1964 and Tongtherm et al. 2016
Sister taxa: Actinoceratidae, Armenoceratidae, Astoceras, Calhounoceras, Carbactinoceratidae, Eldroceras, Georginidae, Gonioceratidae, Gouldoceratidae, Greenlandoceratidae, Hopeioceras, Huroniidae, Jeholoceras, Kobayashiceras, Meitanoceratidae, Ormoceratidae, Parahelenites, Parahelenitidae, Polydesmiidae, Pseudactinoceratidae, Subtofangoceras, Wutinoceratidae, Zerashanoceras
Subtaxa: Elkanoceras Franklinoceras Madiganella Ruedemannoceras
Ecology: nektobenthic carnivore
Distribution:
• Whiterockian of United States (1: California collection)
• Arenigian of Thailand (1)
• Ordovician of Canada (1: Newfoundland), Norway (1), United States (2: California, Tennessee)
Total: 6 collections each including a single occurrence