Parent taxon: Actinocerida according to B. A. Stait 1988
See also Chen et al. 1981 and Dzik 1984
Sister taxa: Actinoceratidae, Armenoceratidae, Astoceras, Calhounoceras, Carbactinoceratidae, Eldroceras, Georginidae, Gonioceratidae, Gouldoceratidae, Greenlandoceratidae, Hopeioceras, Huroniidae, Jeholoceras, Kobayashiceras, Meitanoceratidae, Ormoceratidae, Parahelenitidae, Polydesmiidae, Pseudactinoceratidae, Ruedemannoceratidae, Subtofangoceras, Wutinoceratidae, Zerashanoceras
Subtaxa: Parahelenites asymmetricus Parahelenites guizhouensis
Type: Parahelenites guizhouensis
Ecology: nektobenthic carnivore
Distribution:
• Silurian of China (4 collections)
• Ordovician of Australia (1)
Total: 5 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.