Protetrahedral antiprismatic symmetry

(BC3+×A1)/2, also known as protetapic symmetry or protetrahedral antiprismatic symmetry, is a 4D spherical Coxeter group. It is the symmetry group of the snub tetrahedral gyroprism.

Convex polytopes with (BC3+×A1)/2 symmetry

 * Tetrahedral antiprism (isogonal)/Tetrahedral antitegum (isotopic)
 * Tetratetrahedral prism (isogonal)/Rhombic hexahedral tegum (isotopic)
 * Truncated tetrahedral cupoliprism (isogonal)/Triakis tetrahedral cupolitegum (isotopic)
 * Rhombitetratetrahedral alterprism (isogonal)/Deltoidal dodecahedral altertegum (isotopic)
 * Snub tetrahedral gyroprism (isogonal)/Tetartoidal gyrotegum (isotopic)