The metabiaugmented dodecahedron is also composed of two pentagonal pyramids ,and a regular dodecahedron ,but there is something different with the  Parabiaugmented dodecahedron ;we can observe that the two pentagonal pyramids of the metabiaugmented dodecahedron are not parallel.

       We can use the Augmented dodecahedron to construct this solid ,if we add another pentagonal pyramid on the regular dodecahedron ,such that the two pentagonal pyramids are not parallel ,then we get the metabiaugmented dodecahedron which is the Johnson solid .