†subfamily Hammatocyclinae Ebbighausen et al. 2010 (ammonite)
Cephalopoda - Goniatitida - Pericyclidae
Full reference: V. Ebbighausen, D. Korn, and J. Bockwinkel. 2010. The ammonoids from the Dalle à Merocanites of Timimoun (Late Tournaisian-Early Viséan; Gourara, Algeria). Fossil Record 13:153-202
Parent taxon: Pericyclidae according to V. Ebbighausen et al. 2010
Sister taxa: Ammonellipsitinae, Helicocyclinae, Pericyclinae
Subtaxa: Hammatocyclus Neopericyclus
Ecology: fast-moving nektonic carnivore
Distribution:
• Carboniferous of Algeria (1 collection), United States (4: Montana, Utah), Uzbekistan (3)
Total: 8 collections including 10 occurrences