Kingdom Animalia Class Cephalopoda Order †Ammonitida Rank Genus | Phylum Mollusca Subclass †Ammonoidea Family †Oppeliidae | |
Similar Euaspidoceras, Cardioceras, Hecticoceras, Aspidoceras, Ochetoceras | ||
Creniceras is a rather small Upper Jurassic 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
Creniceras Wikipedia(Text) CC BY-SA