Duotruncatoaltertegum

A duotruncatoaltertegum is an isotopic polytope constructed as the dual of a duotruncatoalterprism. The simplest duotruncatoaltertegum is the triangular duotruncatoaltertegum.

in 4D, an n-gonal duotruncatoaltertegum has 4n2 cells. Each cell is a bilaterally-symmetric hexahedron with 1 irregular pentagon, 2 kites, and 3 triangles for faces, formed by truncating one of the base vertices of a kite pyramid.