Small retroinverted dodecahedronary prismatohecatonicosachoron

The small retroinverted dodecahedronary prismatohecatonicosachoron, or sridaphi, is a nonconvex uniform polychoron that consists of 120 great icosahedra and 120 triangular prisms. Twelve great icosahedra and sixty triangular prisms join at each vertex.

It also has tetrahedra as pseudofacets.

Vertex coordinates
Its vertices are the same as those of its regiment colonel, the small ditrigonary hexacosihecatonicosachoron.