''Aegoceras'' (''Beaniceras'') is small, coarsely ribbed subgenus
ammonite
Ammonoids are a group of extinct marine mollusc animals in the subclass Ammonoidea of the class Cephalopoda. These molluscs, commonly referred to as ammonites, are more closely related to living coleoids (i.e., octopuses, squid and cuttlefish) ...
from the
Lower Jurassic with coarsely ribbed rounded whorls. The shell is evolute, early whorls a barrel-shaped cadicone, later become serpenticonic.
Distribution
Jurassic of France, Germany and Spain
References
;Notes
;Bibliography
* Treatise on Invertebrate Paleontology, Part L; Ch. Mesozoic Ammonoidea.. Geological Soc. of America and Uni. Kansas Press, R.C Moore (ed)
Early Jurassic ammonites of Europe
Liparoceratidae
Animal subgenera
{{Ammonitina-stub