Quasidisprismatogrand hexacosihecatonicosachoron

The quasidisprismatogrand hexacosihecatonicosachoron, or quad pagaxhi, is a nonconvex fissary uniform polychoron that consists of 600 regular tetrahedra, 120 great stellated dodecahedr, 1200 triangular prisms, and 720 pentagrammic prisms. 4 tetrahedra, 4 great stellated dodecahedra, 12 triangular prisms, and 12 pentagrammic prisms join at each vertex. It is the result of exapnding the cells of either a great grand stellated hecatonicosachoron or a grand hexacosichoron outwards.

It is fissary as vertices coincide by four, producing a compound vertex figure; in addition, edges coincide by two.

It is in the same regiment as the grand ditetrahedronary hexacosidishecatonicosachoron.