The 92 Johnson solids were named and described by Norman Johnson in 1966.
They are named by Norman Johnson from the Wythoff construction operations upon regular 6-simplex (heptapeton).
They are named by Norman Johnson from the Wythoff construction operations upon the regular 6-cube and 6-orthoplex.
With the other 92 Johnson solids, the metabidiminished icosahedron was named and described by Norman Johnson in 1966.
It can be seen as the "lid" of an icosahedron; the rest of the icosahedron forms a gyroelongated pentagonal pyramid, J, one of the 92 Johnson solids named and described by Norman Johnson in 1966.
