Coroniceras

Coroniceras
Temporal range: Sinemurian[1]
Coroniceras rotiforme
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Cephalopoda
Subclass: Ammonoidea
Order: Ammonitida
Superfamily: Psilocerataceae
Family: Arietitidae
Subfamily: Arietitinae
Genus: Coroniceras
Arkell (1947)
Species [2]
  • C. bucklandi
  • C. charlesi
  • C. rotiforme
  • C. validanfractum
Synonyms
  • Arnioceratoides Spath 1922
  • Epammonites Spath 1922
  • Pararnioceras
  • Primarietites Buckman 1926,
  • Saccaiaceras Nannarone 2002
  • Venturi Nannarone 2002

Coroniceras is a genus in the Arietitidae, a family in the ammonitid superfamily Psiloceratiaceae, from the lower Sinermurian stage in the Lower Jurassic. It is a sub zone ammonite of the Arnioceras semicostotum Zone

Coroniceras has a thin discoidal form with a circular whorl section, arched venter, single tall keel, and few but strong ribs. Coroniceras is included in the subfamily Arietitinae

Fossils of Coroniceras bucklandi are commonly found at Lyme Regis, Dorset Coast, England in the higher limestones of the Blue Lias.[3]

References

  1. ↑ Sepkoski, Jack (2002). "Sepkoski's Online Genus Database". Retrieved 2014-05-28.
  2. ↑ "Paleobiology Database - Coroniceras". Retrieved 2014-05-28.
  3. ↑ Davies, G. M. 1964. The Dorset Coast London: Adam and Charles Black.