Great snubspinosnub prismatosnub dishexacositetrishexacosichoron

The great snubspinosnub prismatosnub dishexacositetrishexacosichoron, or gosanspos duxtix, is a nonconvex uniform polychoron that consists of 600 small stellated dodecahedra, 600 icosahedra and 600 great dodecahedra (falling into pairs in the same hyperplanes, forming 600 compounds of one of each), 2400 cuboctahedra and 2400 cubohemioctahedra (forming 2400 compounds of one of each), 600 octahemioctahedra (forming 120 icosidisicosahedra), 600 great ditrigonal dodecicosidodecahedra, 600 icosidodecadodecahedra, 600 great rhombidodecahedra, and 3600 pentagonal prisms.

One small stellated dodecahedron, one icosahedron and one great dodecahedron (two compounds), four cuboctahedra and four cubohemioctahedra (eight compounds), one octahemioctahedron (one compound), five great ditrigonal dodecicosidodecahedra, five icosidodecadodecahedra, five great rhombidodecahedra, and five pentagonal prisms join at each vertex.

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

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