Small dispinosnub dishexacosi prismatosnub tetrishexacosichoron

The small dispinosnub dishexacosi prismatosnub tetrishexacosichoron, or sadinsadox postux, is a nonconvex uniform polychoron that consists of 1200 small stellated dodecahedra (some of which lie in the same hyperplanes, forming 600 pentagrammatic snub pseudodisoctahedra), 600 icosahedra, 4800 cubohemioctahedra (forming 2400 compounds of two), 600 small dodecicosahedra and 600 small icosicosidodecahedra (forming 600 compounds of one of each), 600 small rhombidodecahedra, and 3600 pentagrammic prisms.

Two small stellated dodecahedra (two compounds), one icosahedron, eight cubohemioctahedra (eight compounds), five small dodecicosahedra and five small icosicosidodecahedra (ten compounds), five small rhombidodecahedra, and five pentagrammic prisms join at each vertex.

It can be obtained as the blend of 5 small dipentary hecatonicosiprismatohecatonicosihexacosichora and 5 small dipentary hecatonicosihexacositrishecatonicosachora. 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.