Small ditrigonary hexacositetrishecatonicosachoron

The small ditrigonary hexacositetrishecatonicosachoron, or sidtuxthi, is a nonconvex uniform polychoron that consists of 120 ditrigonary dodecadodecahedra, 120 great icosidodecahedra, 600 octahedra, 120 great icosicosidodecahedra, and 120 small dodecicosahedra. Two ditrigonary dodecadodecahedra, three great icosidodecahedra, three octahedra, six great icosicosidodecahedra, and six small dodecicosahedra join at each vertex.

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