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]

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

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]

Fossils of Hatchericeras patagonese Stanton, 1901

Genera
  • Acanthodiscus Uhlig, 1905
  • Argentiniceras Spath, 1924
  • Berriasella Uhlig, 1905
  • Decliveites Aguirre-Urreta and Rawson, 2010
  • Delphinella Le Hegarat, 1973
  • Delphinites Sayn, 1901
  • Distoloceras Hyatt, 1900
  • Elenaella Nikolov, 1966
  • Eleniceras Breskovski, 1967
  • Ellenaela Nikolov, 1966
  • Favrella Douvillé, 1909
  • Frenguelliceras Leanza, 1945
  • Hatchericeras Stanton, 1901
  • Jabronella Nikolov, 1966
  • Karakaschiceras Thieuloy, 1971
  • Kilianella Uhlig, 1905
  • Lemencia Donze and Enay 1961
  • Leopoldia Mayer-Eymar, 1887
  • Luppovella Nikolov, 1966
  • Lyticoceras Hyatt, 1900
  • Neocomites Uhlig, 1905
  • Neohoploceras Spath, 1939
  • Paquiericeras Sayn, 1901
  • Parandiceras Spath, 1939
  • Pseudoneocomites Hoedemaeker, 1982
  • Pseudosubplanites Le Hegarat, 1973
  • Sarasinella Uhlig, 1905
  • Subalpinites Mazenot, 1939
  • Substeueroceras Spath, 1922
  • Thurmanniceras Cossmann, 1901
  • Tirnovella Nikolov, 1966

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. 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
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