Expanded rhodomesohedral rotunda (EntityTopic, 15)
From Hi.gher. Space
The expanded icosidodecahedral rotunda, also known as the runcinated icosidodecahedral rotunda, is a CRF polychoron, TODO: insert prismatoid notation here. Its cells are one icosidodecahedron, one great rhombicosidodecahedron, 12 pentagonal rotundae, 42 pentagonal prisms, 20 cuboctahedra, and 20 triangular cupolae.
History
This polytope was discovered by Mrrl shortly after the icosidodecahedral rotunda.