Zigzagiceratinae

Zigzagiceratinae is a subfamily of late middle Jurassic ammonites named by Buckman, 1920, included in the Perisphinctidae. Shells sub involute, whorls srongly overlapping, to subevolute, whorls mostly exposed. Includes Zigzagiceras, Homoeoplanulites][], [[Indosphinctes, and Procerites, which differ in coiling and the nature of their ribbing.