Romaniceras Temporal range:
Late Cretaceous,
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Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Mollusca |
Class: | Cephalopoda |
Subclass: | † Ammonoidea |
Order: | † Ammonitida |
Family: | † Acanthoceratidae |
Subfamily: | † Euomphaloceratinae |
Genus: | †
Romaniceras Spath, 1923 |
Romaniceras is a genus of Upper Cretaceous ammonites in the Acanthoceratidae subfamily Euomphaloceratinae. [1]
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]