†Lithacoceras (Progeronia)
Cephalopoda - Ammonitida - Ataxioceratidae
Alternative spelling: Progeronia
Parent taxon: Lithacoceras according to Geyer 1961
See also Arkell et al. 1957 and Sepkoski 2002
Sister taxa: Lithacoceras (Lithacoceras), Lithacoceras (Subplanites), Lithacoceras (Virgalithacoceras), Lithacoceras malarguense, Lithacoceras mombassanum, Lithacoceras sigali, Lithacoceras soucadeauxi, Lithacoceras ulmensis
Subtaxa: Ammonites eupalus
Distribution:
• Jurassic of Algeria (5 collections), Hungary (1), Romania (6), Somalia (1), Switzerland (1)
Total: 14 collections including 17 occurrences