Swirlprismatodiminished biambotetracontoctachoron

The swirlprismatodiminished biambotetracontoctachoron or spidbamic is an isogonal polychoron with 48 triangular antiprisms, 96 triangular frustums, 144 tetragonal antiwedges, and 144 vertices. 4 triangular antipodiums, 2 triangular antiprisms, and 6 tetragonal antiwedges join at each vertex.

It can be constructed by removing the vertices of an inscribed bitetracontoctachoron from a biambotetracontoctachoron, in a similar way to how a swirlprismatodiminished rectified icositetrachoron is derived from a rectified icositetrachoron. In fact it can also be seen as the convex hull of 2 swirlprismatodiminished rectified icositetrachora.

Isogonal derivatives
Substitution by vertices of these following elements will produce these convex isogonal polychora:
 * Triangular antiprism (48): Bitetracontoctachoron
 * Triangle (48): Bitetracontoctachoron