Temporal range: Early Jurassic- Late Cretaceous
Nannolytoceras is an extinct genus of lytoceratid ammonite, family Lytoceratidae, with a stratigraphic range extending from the Lower Jurassic to the Upper Cretaceous. The shell is evolute, smooth, tubular to compressed, with more or less regularly spaced constrictions; umbilicus relatively large; suture ammonitic.
||This article includes a list of references, related reading or external links, but its sources remain unclear because it lacks inline citations. (October 2013)|
- Sepkoski, Jack (2002). "A compendium of fossil marine animal genera (Cephalopoda entry)". Bulletins of American Paleontology 364: p.560. Retrieved 2008-04-05.
- Ammonites Nannolytoceras - Nannolytoceras tripartitum 
- Nannoltoceras tripartitum; jsd ammonites.fr
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