Small dipentary hecatonicosidishexacosidishecatonicosachoron

The small dipentary hecatonicosidishexacosidishecatonicosachoron, or sidphiddixady, is a nonconvex uniform polychoron that consists of 600 truncated tetrahedra, 120 truncated icosahedra, 600 cuboctahedra, 120 rhombidodecadodecahedra, and 120 small ditrigonal dodecicosidodecahedra. Five truncated tetrahedra, five truncated icosahedra, five cuboctahedra, five rhombidodecadodecahedra, and five small ditrigonal dodecicosidodecahedra join at each vertex.

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