Small dispinosnub prismatodisnub dishexacositetrishexacosichoron

The small dispinosnub prismatodisnub dishexacositetrishexacosichoron, or sidnaspid sodixtux, is a nonconvex uniform polychoron that consists of 1200 great dodecahedra (some of which lie in the same hyperplanes, forming 600 pentagonal retrosnub pseudodisoctahedra), 4800 cubohemioctahedra (forming 2400 compounds of two), 600 truncated icosahedra, 600 small rhombidodecahedra, 600 icosidodecadodecahedra, 600 small ditrigonal dodecicosidodecahedra, and 6000 triangular prisms.

Two great dodecahedra (two compounds), eight cubohemioctahedra (eight compounds), five truncated icosahedra, five small rhombidodecahedra, five icosidodecadodecahedra, five small ditrigonal dodecicosidodecahedra, and five triangular prisms join at each vertex.

It can be obtained as the blend of 5 small spinobased dipentary hexacositrishecatonicosachora and 5 small based dipentary prismatodishecatonicosihexacosihecatonicosachora. In the process, some of the cubohemioctahedron cells blend out.

Vertex coordinates
Its vertices are the same as those of its regiment colonel, the small diretrosnub disnub decahecatonicosadishexacosichoron.