†family Clydonitidae Mojsisovics 1879 (ceratite)
Cephalopoda - Ceratitida - Clydonitidae
Parent taxon: Clydonitaceae according to E. T. Tozer 1994
See also Tatzreiter 1981 and Tozer 1981
Sister taxa: Clionitidae, Heraclitidae, Sandlingitidae, Steinmannitidae, Thetiditidae, Tibetitidae
Subtaxa: Clydonites Ophiceltites
Ecology: nektonic carnivore
Distribution:
• Triassic of Canada (1: British Columbia collection), Indonesia (2), United States (2: Nevada)
Total: 5 collections including 6 occurrences