Acronym	mesdi
Name	medial snub disicositetrachoron
Circumradius	1
Vertex figure
Coordinates	((1+sqrt(5))/4, (sqrt(5)-1)/4, 1/4, 0)   & all even permutations, all changes of sign
Colonel of regiment	rappisdi
Face vector	96, 720, 864, 144
Confer	uniform relatives: rappisdi   Grünbaumian relatives: rappisdi+mesdi+288{4}   general polytopal classes: scaliform
External links

Incidence matrix

96 ♦   3  12 |  12  15  15 |  3  3 15
---+---------+-------------+---------
 2 | 144   * |   4   2   2 |  1  1  6
 2 |   * 576 |   1   2   2 |  1  1  3
---+---------+-------------+---------
 4 |   2   2 | 288   *   * |  0  0  2
 5 |   1   4 |   * 288   * |  1  0  1	{5}
 5 |   1   4 |   *   * 288 |  0  1  1	{5/2}
---+---------+-------------+---------
12 |   6  24 |   0  12   0 | 24  *  *	(gad)
12 |   6  24 |   0   0  12 |  * 24  *	(sissid)
15 |   9  18 |   6   3   3 |  *  * 96	(dritit)