Small omnisnub bidecachoron

The small omnisnub bidecachoron or sosbid is a convex isogonal polychoron that consists of 10 snub tetrahedra, 20 triangular antiprisms, 20 triangular gyroprisms, 30 tetragonal disphenoids, 60 phyllic disphenoids, and 240 irregular tetrahedra of two kinds. 1 snub tetrahedron, 1 triangular antiprism, 1 triangular gyroprism, 1 tetragonal disphenoid, 2 phyllic disphenoids, and 8 irregular tetrahedra join at each vertex. It can be obtained through the process of alternating the small biomnitruncatodecachoron. However, it cannot be made uniform.