Small retroditetrahedronary prismatodishecatonicosachoron

The small retroditetrahedronary prismatodishecatonicosachoron, or sirdtapady, is a nonconvex uniform polychoron that consists of 120 dodecahedra, 1200 triangular prisms, and 120 small rhombicosidodecahedra. Four dodecahedra, twelve triangular prisms, and twelve small rhombicosidodecahedra join at each vertex.

Vertex coordinates
Its vertices are the same as those of its regiment colonel, the small ditetrahedronary hexacosihecatonicosachoron.