Octagonal duotruncatoalterprism

The octagonal duotruncatoalterprism is a convex isogonal polychoron and the seventh member of the duotruncatoalterprism family. It consists of 16 octagonal prisms, 32 octagonal cupolas, 64 rectangular trapezoprisms, and 64 tetragonal disphenoids. 1 octagonal prism, 3 octagonal cupolas, 2 rectangular trapezoprisms, ad 1 tetragonal disphenoid join at each vertex. It can be obtained as the convex hull of two orthogonal octagonal-dioctagonal duoprisms. However, it cannot be made scaliform.