Cephalopoda - Ammonitida - Perisphinctidae
Alternative spelling: Cleistosphinctes
Parent taxon: Leptosphinctes according to A. Galacz 2012
See also Arkell et al. 1957, Besnosov and Mitta 1993 and Sepkoski 2002
Sister taxa: Leptosphinctes (Leptosphinctes), Leptosphinctes schmiereri, Leptosphinctes tabernai, Leptosphinctes tenuiplicatus
Subtaxa: Leptosphinctes (Cleistosphinctes) asinus Leptosphinctes (Cleistosphinctes) balchanense Leptosphinctes (Cleistosphinctes) cleistus Leptosphinctes (Cleistosphinctes) nikanorovae Leptosphinctes (Cleistosphinctes) perspicuus Leptosphinctes (Cleistosphinctes) umbilicatus
Type: Leptosphinctes cleistus
Ecology: fast-moving nektonic carnivore
Distribution:
• Jurassic of Hungary (3 collections), the Russian Federation (3), Spain (1), Turkmenistan (2)
Total: 9 collections including 12 occurrences