Snub prismatosnub hexecontatetrasnub prismatosnub antiprismatosnub disoctachoron

The snub prismatosnub hexecontatetrasnub prismatosnub antiprismatosnub disoctachoron, or spisgis pisapsido, is a nonconvex uniform polychoron that consists of 8 great icosahedra, 8 icosahedra, 96 tetrahedra, 96 octahedra, 32+96 triangular prisms, and 32+32 tetrahemihexahedra. One great icosahedron, one icosahedron, four tetrahedra, six octahedra, eight triangular prisms, and four tetrahemihexahedra join at each vertex.

It can be obtained as the blend of a snub prismatosnub hexecontatetrasnub prismatosnub tetrisoctachoron and a retroantiprismatosnub disicositetrachoron. In the process, some of the icosahedron and great icosahedron cells blend out.

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