Ammonite species from the "HAUTERIVIAN" stage (4 entries found)

Planispiral heteromorphic genus. Strong simple ribs distinctly spaced. Aegocrioceras capricornu can be distinguished by its tight coiling and the thickness of the whorl.

Planispiral heteromorphic genus. Strong simple ribs distinctly spaced. Aegocrioceras capricornu can be distinguished by its loose coiling and the very slow growth of the width of the whorl.

Planispiral heteromorphic genus. Strong simple ribs distinctly spaced. Aegocrioceras capricornu can be distinguished by its loose coiling and the very slow growth of the width of the whorl.

Compressed whorl section with a round venter. Simple ribs on the periumbilical region, which fork at the start of the flank and then run straight across the venter. The shell is terminated with a simple peristome.