†subfamily Helicocyclinae Becker 2023 (ammonite)
Cephalopoda - Ammonoida - Pericyclidae
Full reference: R. T. Becker. 2023. A unique pericyclid from the Viséan of the eastern Anti‑Atlas (Morocco) and other Helicocyclinae n. subfam. (Goniatitida). PalZ 97:807-819
Parent taxon: Pericyclidae according to R. T. Becker 2023
Sister taxa: Ammonellipsitinae, Hammatocyclinae, Pericyclinae
Subtaxa: Helicocyclus Serpenticyclus Tectocyclus
Ecology: fast-moving nektonic carnivore
Distribution:
• Carboniferous of Algeria (7 collections), Morocco (2), Uzbekistan (6)
Total: 15 collections including 19 occurrences