Rhaeboceras

Rhaeboceras is an extinct genus of ammonite belonging to the subfamily Scaphitinae. Species belonging to the genus lived during the Cretaceous and have been found in the Pierre Shale of North America.^[1][2][3]

Rhaeboceras Temporal range: Cretaceous
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Cephalopoda
Subclass:	†Ammonoidea
Order:	†Ammonitida
Suborder:	†Ancyloceratina
Family:	†Scaphitidae
Subfamily:	†Scaphitinae
Genus:	†Rhaeboceras Meek 1876
Species[1]
†R. burkholderi Cobban, 1987 †R. cedarense Grier and Grier, 2015 †R. robustus Warren, 1934

Taxonomy

The genus Ponteixites is currently deemed a junior synonym of Rhaeboceras, with most specimens formerly assigned to Ponteixites appearing to be juveniles. The finding of a larger fossil specimen assigned to P. robustus similar to these juvenile remains provides evidence supporting this lumping.^[2]