Creniceras

Creniceras
Temporal range: Oxfordian[1]
Scientific classification
Kingdom:Animalia
Phylum:Mollusca
Class:Cephalopoda
Subclass:†Ammonoidea
Order:†Ammonitida
Family:†Oppeliidae
Genus:†Creniceras
Munier-Chalmas,1892
Species [2]
  • Creniceras crenatum
  • Creniceras lophotum
  • Creniceras renggeri

Creniceras is a rather small Upper Jurassic[1] ammonite with a shell in the range of about 1.6 cm in diameter,(about 1/2 in). The shell of Creniceras is eccentrically coiled, compressed, and generally smooth, except for a median row of cockscomb serrations on the body chamber and the possibility of blunt ribbing on the sides.

Creniceras, named by Munier-Chalmas in 1892, is included in the oppeliid subfamily Teramelliceratinae, and has been found in Upper Jurassic (Oxfordian age) sediments in Europe and Syria.

References

  1. 1 2 Sepkoski, Jack (2002). "A compendium of fossil marine animal genera (Cephalopoda entry)". Bulletins of American Paleontology. 363: 1–560. Archived from the original on 2008-05-07. Retrieved 2017-10-18.
  2. ↑ "Paleobiology Database - Creniceras". Retrieved 2017-10-19.

Arkell et al, 1957. Mesozoic Ammonoidea, Treatise on Invertebrate Paleontology Part L. Geological Society of America and Univ. Kansas Press. p. L282.

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