Aegoceras
Encyclopedia
Aegoceras is an evolutely wound ammmonite, with wide spaced ribs, from the Early Jurassic (England) included in the Liparoceratidae
and superfamily Eoderoceratidae
. Related genera are Leparoceras and Beaniceras
.
Liparoceratidae
Liparoceratidae is a family of eoderoceratacean ammonites from the Lower Jurassic that combines genera with a variety of forms including dimorphs that change from one form to another during ontogeny....
and superfamily Eoderoceratidae
Eoderoceratidae
The Eoderoceratidae is the ancestral and most primitive family of the Eoderocerataceae; lower Jurassic ammonite cephalopods, characterized by evolute, commonly serpenticonic, shells that had long body chambers and would have had no stable floating position; and thus resemble contemporary...
. Related genera are Leparoceras and Beaniceras
Beaniceras
Beaniceras is small, coarsely ribbed genus ammonite from the Lower Jurassic with coarsely ribbed rounded whorls. The shell is evolute, early whorls a barrel-shaped cadicone, later become serpenticonic.-References:...
.