Tetrahedral transitional omnisnub bidecachoron

The tetrahedral transitional omnisnub bidecachoron or tetosbid is a convex isogonal polychoron that consists of 10 gyrated great rhombitetratetrahedra, 20 triangular gyroprisms, 30 tetragonal disphenoids, and 120 irregular tetrahedra. 2 gyrated great rhombitetratetrahedra, 1 triangular gyroprism, 1 tetragonal disphenoid, and 4 irregular tetrahedra join at each vertex. It can be obtained through the process of alternating the tetrahedral transitional biomnitruncatodecachoron.

Using the ratio method, the lowest possible ratio between the longest and shortest edges is 1:a ≈ 1:1.44215, where a is the largest real root of 9x8-36x6+48x4-27x2+4.