Great prismatodisicositetrachoron

The great prismatodisicositetrachoron, or gepdi, is a nonconvex uniform polychoron compound that consists of 24 quasitruncated hexahedra, 24 great rhombihexahedra, and 96 triangular prisms. Four quasitruncated hexahedra, four great rhombihexahedra, and four triangular prisms join at each vertex.

It is a compound of three great rhombic disoctachora, where vertices coincide by two. Some edges also coincide by two.

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