†order Acanthinocyathida Okulitch 1935
Radiocyatha - Acanthinocyathida
Parent taxon: Radiocyatha according to Kruse 2012
See also Kiessling 2003
Sister taxa: Hetairacyathidae, Soanitidae, Uranosphaeridae
Subtaxa: Acanthinocyathidae
Distribution:
• Cambrian of Antarctica (1 collection), Australia (2), Mongolia (1), the Russian Federation (6)
Total: 10 collections each including a single occurrence