[1] Mantelliceras is characterized by a strongly ribbed, moderately involute shell with a moderately wide umbilicus, and rounded whorl section.
High standing ribs cross over the venter smoothly.
Secondaries, usually one per intervening space, arise higher on the flanks.
[citation needed] Species of Mantelliceras' have been found in Cretaceous sediments in Angola, France, Germany, Japan, Mexico, Russia, Spain, the United Kingdom, and United States.
You can help Wikipedia by expanding it.This article about a Cretaceous animal is a stub.