12-4 step prism

The 12-4 step prism is a convex isogonal polychoron, member of the step prism family. It has 3 square antiprisms and 12 phyllic disphenoids as cells.

Isogonal derivatives
Substitution by vertices of these following elements will produce these convex isogonal polychora:
 * Phyllic disphenoid (12): 12-4 step prism
 * Scalene triangle (12): 12-4 step prism
 * Scalene triangle (24): 24-4 step prism
 * Edge (12): 12-4 step prism