Triangular-antitegmatic icosachoron

The trigonal-trapezohedral icosachoron is a convex isochoric polychoron with 20 trigonal trapezohedra as cells.

Isogonal derivatives
Substitution by vertices of these following elements will produce these convex isogonal polychora:
 * Trigonal trapezohedron (20): Small prismatodecachoron
 * Rhombus (60): Rectified small prismatodecachoron
 * Edge (30): Decachoron
 * Edge (40): Bitruncatodecachoron
 * Vertex (10): Bidecachoron
 * Vertex (20): Biambodecachoron