Acronym	gypasp
Name	great pyramidic swirlprism
Circumradius	(sqrt(5)-1)/2 = 0.618034
Vertex figure	©
Colonel of regiment	sub-regimental to gishi
Face vector	120, 600, 720, 240
Confer	uniform relative: gax   related scaliform: gisp   spysp   general polytopal classes: noble polytopes
External links

The gypasp vertex figure is kind a flattened, gyrated version of stap, thereby decreasing the descending lacings to v-edges.

As abstract polytope gypasp is isomorph to spysp, thereby replacing pentagrams by pentagons, resp. replacing stappy by peppy.

Incidence matrix

120 |  10 |  15   5 |  12
----+-----+---------+----
  2 | 600 |   3   1 |   4
----+-----+---------+----
  3 |   3 | 600   * |   2
  5 |   5 |   * 120 |   2  : {5/2}
----+-----+---------+----
  6 |  10 |   5   1 | 240  : stappy