Cephalopoda - Ammonitida - Perisphinctidae
Alternative spelling: Dichotomosphinctes
Parent taxon: Perisphinctes according to T. Sato and T. Yamada 2014
See also Imlay 1961, Schlegelmilch 1994 and Sepkoski 2002
Sister taxa: none
Subtaxa: Dichotomosphinctes stenocyclus Perisphinctes (Dichotomosphinctes) aeneas Perisphinctes (Dichotomosphinctes) antecedens Perisphinctes (Dichotomosphinctes) bouranensis Perisphinctes (Dichotomosphinctes) elisabethae Perisphinctes (Dichotomosphinctes) elisabethaeformis Perisphinctes (Dichotomosphinctes) gamelai Perisphinctes (Dichotomosphinctes) germaini Perisphinctes (Dichotomosphinctes) jacki Perisphinctes (Dichotomosphinctes) kiritaniensis Perisphinctes (Dichotomosphinctes) lehmani Perisphinctes (Dichotomosphinctes) montfalconensis Perisphinctes (Dichotomosphinctes) muhlbachi Perisphinctes (Dichotomosphinctes) obliqueplicatus Perisphinctes (Dichotomosphinctes) rotiformis Perisphinctes (Dichotomosphinctes) subhelenae Perisphinctes (Dichotomosphinctes) tizianiformis Perisphinctes (Dichotomosphinctes) vermicularis Perisphinctes (Dichotomosphinctes) wartae
Ecology: fast-moving nektonic carnivore
Distribution:
• Jurassic of Ethiopia (1 collection), France (15), Germany (4), India (3), Italy (1), Japan (3), Madagascar (12), Spain (11), the United Kingdom (3), United States (7: California)
Total: 60 collections including 100 occurrences