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Romaniceras

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Romaniceras
Temporal range: Late Cenomanian - Late Turonian
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Cephalopoda
Subclass: Ammonoidea
Order: Ammonitida
Family: Acanthoceratidae
Subfamily: Euomphaloceratinae
Genus: Romaniceras
Spath, 1923
Species

See text

Romaniceras is a genus of early Upper Cretaceous ammonites in the Acanthoceratidae subfamily Euomphaloceratinae.

The shell is rather evolute, whorl section circular to oval. Differs from Acanthoceras in having 9 or 11 rows of tubercles, of which the ventrolateral may be clavate (i.e. elongate). Ribs are strong and fairly close spaced.

References

  • W.J. Arkell et al., 1957. Mesozoic Ammonoidea; Treatise on Invertebrate Paleontology,Part L, Mollusca 4. Geological Society of America and University of Kansas Press.