Bernceras, which has been found in Europe, has a moderately enlarging, ribbed, involute shell with a keel along the venter, which forms the outer rim. The ribs are formed on the outer flanks and curve forward ventrally.
Arkell et al.,1957; Ammonitina in the Treatise on Invertebrate Paleontology, Part L, Ammonoidea; Geological Soc of America and Univ Kansas press.
August 31, 2023
berniceras, extinct, ammonite, genus, from, order, ammonitida, that, lived, during, early, oxfordian, stage, late, jurassic, included, ammonite, sensu, stricto, family, oppeliidae, temporal, range, oxfordian, preꞒ, nscientific, classificationkingdom, animaliap. Berniceras is an extinct ammonite genus from the order Ammonitida that lived during the early Oxfordian stage of the Late Jurassic 1 Berniceras is included in the ammonite sensu stricto family Oppeliidae BernicerasTemporal range Oxfordian 1 PreꞒ Ꞓ O S D C P T J K Pg NScientific classificationKingdom AnimaliaPhylum MolluscaClass CephalopodaSubclass AmmonoideaOrder AmmonitidaFamily OppeliidaeGenus BernicerasSpecies 2 See textBernceras which has been found in Europe has a moderately enlarging ribbed involute shell with a keel along the venter which forms the outer rim The ribs are formed on the outer flanks and curve forward ventrally Distribution EditJurassic of France 2 References EditNotes a b Sepkoski Jack 2002 Sepkoski s Online Genus Database Retrieved 2014 05 28 a b Paleobiology Database Berniceras 2014 05 29 BibliographyArkell et al 1957 Ammonitina in the Treatise on Invertebrate Paleontology Part L Ammonoidea Geological Soc of America and Univ Kansas press Retrieved from https en wikipedia org w index php title Berniceras amp oldid 989993403, wikipedia, wiki, book, books, library,
