Retroinverted ditetrahedronary dishecatonicosachoron

The retroinverted ditetrahedronary dishecatonicosachoron, or ridatady, is a nonconvex uniform polychoron that consists of 120 ditrigonary dodecadodecahedra and 120 icosidodecadodecahedra. Four ditrigonary dodecadodecahedra and twelve icosidodecadodecahedra join at each vertex.

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