Romaniceras

Romaniceras is a genus of Upper Cretaceous ammonites in the Acanthoceratidae subfamily Euomphaloceratinae.^[1]

Romaniceras Temporal range: Late Cretaceous, Late Cenomanian - Late Turonian[1] PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Cephalopoda
Subclass:	†Ammonoidea
Order:	†Ammonitida
Family:	†Acanthoceratidae
Subfamily:	†Euomphaloceratinae
Genus:	†Romaniceras Spath, 1923

The shell is rather evolute, whorl section circular to oval and Romaniceras differs from Acanthoceras in having 9 or 11 rows of tubercles, of which the ventrolateral may be clavate (i.e. elongate). The ribs of Romaniceras specimens are strong and fairly close spaced.^[1][2]