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Neocomitidae

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Neocomitidae
Fossil shell of Berriasella jabronensis from Gard (France), on display at Galerie de paléontologie et d'anatomie comparée in Paris
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Cephalopoda
Subclass: Ammonoidea
Order: Ammonitida
Superfamily: Perisphinctoidea
Family: Neocomitidae

Neocomitidae is a family of Lower Cretaceous ammonitids comprising genera with strongly ribbed evolute (all whorls exposed) to smooth, fairly involute (inner whorls mostly hidden) shells.[1]

In the 1957 description of the family[2] Neocomitidae was regarded as the subfamily Neocomitinae within the Berriasellidae, a family within the Perisphinctoidea that ranged from the Late Jurassic into the Early Cretaceous. In a more recent treatment [3] berriaselids are regarded as a subfamily within the Neocomitidae.

Current opinion differes from the 1967 placement of Neocomitidae in the Perisphinctoidea[2] but rather includes it in the superfamily Endemoceratoidea.[4][5]

File:Annals of the South African Museum - Annale van die Suid-Afrikaanse Museum (1990) (18234686430).jpg
Fossils of Hatchericeras patagonese Stanton, 1901

Genera

References

  1. ^ Wright, C. W. with Callomon, J.H. and Howarth, M.K. (1996), Mollusca 4 Revised , Cretaceous Ammonoidea, vol. 4, in Treatise on Invertebrate Paleontology, Part L (Roger L. Kaesler et el. eds.), Boulder, Colorado: The Geological Society of America & Lawrence, Kansas: University of Kansas Press, 49-67.
  2. ^ a b Arkell, W.J.; Kummel, B.; Wright, C.W. (1957). Mesozoic Ammonoidea. Treatise on Invertebrate Paleontology, Part L, Mollusca 4. Lawrence, Kansas: Geological Society of America and University of Kansas Press.
  3. ^ the Paleobiology database Neocomitidae entry accessed April 2013
  4. ^ Taxonomy jsdammonites
  5. ^ Ammonites, taxa