Duotruncatoprism

A duotruncatoprism is an isogonal polytope formed from the convex hull of two orthogonal duoprisms where one base is a truncated version of the other, forming two orthogonal rings of n 2n-gonal prisms. They are closely related to the duoexpandoprisms, differing only in the prisms and the number of rings. The simplest possible duotruncatoprism is the triangular duotruncatoprism, which is the convex hull of two orthogonal triangular-hexagonal duoprisms. The dual of a duotruncatoprism is a duotruncatotegum.

Unlike the duoexpandoprisms, which have the expanded hypercube as its only uniform solution, there are no uniform duotruncatoprisms.

The 4D duotruncatoprisms have 2 rings of 2n-gonal prisms, connected by a layer of tetragonal disphenoids, wedges, and rectangular trapezoprisms similar to that found in the duoexpandoprisms. Their vertex figures are variations of a polyhedron formed by augmenting pyramids onto two faces of a tetrahedron.