Cephalopoda - Ammonitida - Perisphinctidae
Alternative spelling: Elatmites
Full reference: A.A. Shevyrev. 1960. Ontogenetic development in some Upper Jurassic ammonites. Bulletin de la Société impériale des naturalistes de Moscou, Section Geologique 35(1):69-78
Parent taxon: Indosphinctes according to C. Mangold 1970
See also Shevyrev 1960
Sister taxa: Indosphinctes besavoensis, Indosphinctes brenoni, Indosphinctes choffati, Indosphinctes indicus, Indosphinctes natwaris, Indosphinctes peregrinus, Indosphinctes pseudopatina, Indosphinctes urbanus
Subtaxa: Indosphinctes (Elatmites) curvicosta Indosphinctes (Elatmites) graciosus
Ecology: fast-moving nektonic carnivore
Distribution:
• Jurassic of France (7 collections), Madagascar (3)
Total: 10 collections each including a single occurrence