Small ditrigonary trishecatonicosiprismatodishexacosichoron

The small ditrigonary trishecatonicosiprismatodishexacosichoron, or siddit thipdix, is a nonconvex uniform polychoron that consists of 120 great ditrigonary icosidodecahedra, 120 great icosidodecahedra, 600 octahedra, 120 icosidodecadodecahedra, 720 decagonal prisms, and 600 cubohemioctahedra. Two great ditrigonary icosidodecahedra, three great icosidodecahedra, three octahedra, six icosidodecadodecahedra, twelve decagonal prisms, and six cubohemioctahedra join at each vertex.

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