Prismatointercepted pentachoron

The prismatointercepted pentachoron, or pinnip, is a nonconvex uniform polychoron that consists of 5 regular octahedra and 10 triangular prisms. 3 octahedra and 6 triangular prisms join at each vertex.

It is the simplest wild uniform polytope. It is wild because it has octahedra with squares intercepting them.

It is in the same regiment as the rectified pentachoron.