Wikipedia
Balearites
Balearites is an extinct ancylocerid genus included in the family Crioceratidae, subclass Ammonoidea, from the Lower Cretaceous.
The shell, or conch, of Balearites is planispiral; whorls compressed, fairly flat sided, barely in contact (sub-gyroconic); venter (outer rim) rounded; ribs fine,flexious, branching equally in 2s, 3s, or 4s from weak umbilical tubercles.
Genera assumed to be related include Aegocrioceras, Crioceratites, and Hoplocrioceras.