Romaniceras
Romaniceras is a genus of early Upper Cretaceous ammonites in the Acanthoceratidae subfamily Euomphaloceratinae.
| Romaniceras | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Cephalopoda |
| Subclass: | †Ammonoidea |
| Order: | †Ammonitida |
| Family: | †Acanthoceratidae |
| Subfamily: | †Euomphaloceratinae |
| Genus: | †Romaniceras Spath, 1923 |
| Species | |
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See text | |
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.
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