Cephalopoda - Ammonitida - Aulacostephanidae
Parent taxon: Aulacostephanus according to M. S. Mesezhnikov 1984
Sister taxa: Aulacostephanus (Aulacostephanoides), Aulacostephanus (Aulacostephanus), Aulacostephanus (Pararasenia), Aulacostephanus erinus, Aulacostephanus eudoxus, Steueroceras jenkinsi
Subtaxa: Aulacostephanus (Aulacostephanoceras) autissiodorensis Aulacostephanus (Aulacostephanoceras) kirghisensis Aulacostephanus (Aulacostephanoceras) lopsiensis Aulacostephanus (Aulacostephanoceras) pseudolinealis Aulacostephanus (Aulacostephanoceras) undorae Aulacostephanus (Aulacostephanoceras) volgensis
Ecology: fast-moving nektonic carnivore
Distribution:
• Jurassic of the Russian Federation (14 collections), the United Kingdom (1)
Total: 15 collections including 30 occurrences