Joined hexadecachoron

The joined tesseract, joined square duoprism, or transitional digonal double tegmotrapezohedroid, is a convex isochoric polychoron with 32 triangular bipyramids as cells.

Isogonal derivatives
Substitution by vertices of these following elements will produce these convex isogonal polychora:
 * Triangular bipyramid (32): Rectified icositetrachoron
 * Isosceles triangle (96): Semi-uniform small rhombated tesseract
 * Edge (24): Icositetrachoron
 * Edge (64): Semi-uniform small disprismatotesseractihexadecachoron
 * Vertex (8): Hexadecachoron
 * Vertex (16): Tesseract