Cephalopoda - Actinocerida - Parahelenitidae
Full reference: J. Y. Chen, G. W. Liu, and T. E. Chen. 1981. Silurian nautiloid faunas of central and southwestern China. Memoirs of the Nanjing Institute of Geology and Palaeontology 13:1-104
Parent taxon: Actinocerida according to J. Y. Chen et al. 1981
Sister taxa: Actinoceratidae, Armenoceratidae, Astoceras, Calhounoceras, Carbactinoceratidae, Eldroceras, Georginidae, Gonioceratidae, Gouldoceratidae, Greenlandoceratidae, Hopeioceras, Huroniidae, Jeholoceras, Kobayashiceras, Meitanoceratidae, Ormoceratidae, Parahelenites, Polydesmiidae, Pseudactinoceratidae, Ruedemannoceratidae, Subtofangoceras, Wutinoceratidae, Zerashanoceras
Subtaxa: Euryarthroceras Eushantungoceras
Ecology: nektobenthic carnivore
Distribution:
• Silurian of China (3 collections)
Total: 3 collections each including a single occurrence