†family Padunoceratidae Balashov 1960 (mollusk)
Cephalopoda - Bisonocerida - Padunoceratidae
Parent taxon: Bisonocerida according to A. Pohle et al. 2022
See also Crick 1981 and Teichert et al. 1964
Sister taxa: Allotrioceratidae, Bisonoceratidae, Chihlioceratidae, Coreanoceratidae, Emmonsoceratidae, Humeoceratidae, Manchuroceratidae, Piloceratidae, Proterovaginoceratidae, Sinoendoceratidae
Subtaxa: Padunoceras Rossoceras
Ecology: fast-moving nektonic carnivore
Distribution:
• Whiterockian of United States (1: California collection)
• Ordovician of the Russian Federation (1), United States (1: California)
Total: 3 collections each including a single occurrence