Biology:Creniceras

From HandWiki
Short description: Extinct genus of ammonites

Creniceras
Temporal range: Oxfordian[1]
Scientific classification e
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Cephalopoda
Subclass: Ammonoidea
Order: Ammonitida
Family: Oppeliidae
Subfamily: Streblitinae
Genus: Creniceras
Munier-Chalmas,1892
Species
  • 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. 1.0 1.1 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. https://web.archive.org/web/20080507014300/http://strata.ummp.lsa.umich.edu/jack/showgenera.php?taxon=231&rank=class. Retrieved 2017-10-18. 

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

Wikidata ☰ Q5184155 entry