Great disnub prismatosnub octishexacosichoron

The great disnub prismatosnub octishexacosichoron, or gedsposox, is a nonconvex uniform polychoron that consists of 600 great icosahedra and 600 small stellated dodecahedra (some of which lie in the same hyperplanes, forming 600 compounds of one of each), 600 great dodecahedra and 600 icosahedra (forming 600 compounds of one of each), 4800 cuboctahedra (forming 2400 compounds of two), 600 rhombidodecadodecahedra, 600 great dodecicosidodecahedra, 600 truncated great icosahedra, 600 great icosicosidodecahedra, and 3600 pentagonal prisms.

One great icosahedron and one small stellated dodecahedron (two compounds), one great dodecahedra and one icosahedron (two compounds), eight cuboctahedra (eight compounds), five rhombidodecadodecahedra, five great dodecicosidodecahedra, five truncated great icosahedra, five great icosicosidodecahedra, and five pentagonal prisms join at each vertex.

It can be obtained as the blend of 5 great dipentary hexacositetrishecatonicosachora and 5 great dipentary prismatohexacositetrishecatonicosachora. In the process, some of the cuboctahedron cells blend out.

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