Balticeras
{{Short description|Genus of molluscs (fossil)}}
{{Taxobox
|fossil_range = {{fossil range|Oxfordian|ref=}}
|regnum = Animalia
|phylum = Mollusca
|classis = Cephalopoda
|subclassis = Ammonoidea
|ordo = Ammonitida
|familia = Perisphinctidae
|genus = Balticeras
|genus_authority = Dohm, 1925
|subdivision_ranks = Species
|subdivision = None cataloged
}}
Balticeras is an involute, discoidal Upper Jurassic (Oxfordian) ammonite{{cite web
| last = Sepkoski| first = Jack| title= Sepkoski's Online Genus Database|author-link =| year = 2002| url = http://strata.geology.wisc.edu/jack/showgenera.php?taxon=231&rank=class| accessdate = 2014-05-28 }} (order Ammonitida) found in England, Germany, and Switzerland, belonging to the Perisphinctidae. The shell is strongly embracing, tending to be oxyconic (sharp rimmed). Sides are gently curved, converging on a narrow to sharp ventral rim.
Balticeras is considered by some to be a subgenus of Ringsteadia which in contrast is more evolute, with ribbed inner whorls. Both are included in the Pictoniinae, a subfamily established by Spath, 1924, for large ammonites within the Perisphinctidae, tending to develop smooth middle and outer whorls.
References
;Notes
{{Reflist}}
;Bibliography
- Arkell, et al., 1957. Mesozoic Ammonoidea; Treatise on Invertebrate Paleontology, Part L (Ammonoidea). Geol. Soc. of America and Univ. Kansas Press.
{{Taxonbar|from=Q4852747}}
{{Ammonitina-stub}}