Medial bitetratetrahedral diacositetracontachoron

The medial bitetratetrahedral diacositetracontachoron or mobtetid is a convex isogonal polychoron that consists of 240 tetrahedra, 480 triangular gyroprisms, and 1440 phyllic disphenoids. 2 tetrahedra, 6 triangular gyroprisms, and 12 phyllic disphenoids join at each vertex. However, it cannot be made uniform.