Sonneratia (ammonite)

Sonneratia is an extinct genus of Cretaceous ammonites included in the family Hoplitidae. These fast-moving nektonic carnivores lived in the Cretaceous period, Aptian - Albian age.
Distribution.
Fossils of species within this genus have been found in the Cretaceous sediments of Canada, Denmark, France, Madagascar, United Kingdom and United States.