See text Anahamulina is an extinct ammonoid cephalopod genus from the Lower Cretaceous.

Anahamulina is characterized by an increasingly wide shaft that bends sharply to the opposite direction, at some point ending in a shorter terminal section.

[2] The first, and earlier, shaft has fine, dense, oblique ribs, which in the second, and later, shaft are stronger and more radial.

The type Anahamulina subcylindrica, named by Hyatt, 1900, is based on Hamulina subcylindrica d'Orbigny 1850.

Anahamulina wilcoxensis named by Imlay, 1960, is known from California and Oregon.