Chiral digonal pyramidal symmetry

A1×A1+×A1+, also known as espyric symmetry or chiral digonal pyramidal symmetry, is a 3D spherical Coxeter group. It is the symmetry group of the phyllic disphenoid and is equivalent to 2-fold rotational symmetry (2D central inversion with no extension into 3D). It can be considered the digonal member of the infinite family of chiral pyramidal symmetries.

Subgroups

 * I×I×I