Systematic Paleontology
Order Ammonitida
Family Perisphinctidae
Genus Perisphinctes
Subgenus Biplices
Biplices is a subgenus of the Late Jurassic ammonite Perisphinctes. As with the genus, the shell of Perisphinctes (Biplices) is evolute such that all whorls are exposed, and are strongly ribbed.