As abstract polytope sidacadint is isomorphic to gidacadint, thereby replacing octagons by octagrams, resp. replacing the querco by sirco, op by stop, socco by gocco, and girco by quitco, resp. replacing the gikviphado by skiviphado, quercope by sircope, gircope by quitcope, and sichado by gichado. As such sidacadint is a lieutenant.

Incidence matrix according to Dynkin symbol

x3o3x3x *b4/3x4*c

. . . .      .    | 1920 |    2    2   1    2 |   1   2   2   2   1   1   2   2   2 |   1   1  1   2   2   2   1  1   1  2 |  1  1  1  2  1
------------------+------+--------------------+-------------------------------------+--------------------------------------+---------------
x . . .      .    |    2 | 1920    *   *    * |   1   1   1   1   0   0   0   0   0 |   1   1  1   1   1   1   0  0   0  0 |  1  1  1  1  0
. . x .      .    |    2 |    * 1920   *    * |   0   1   0   0   1   0   1   1   0 |   1   0  0   1   1   0   1  1   0  1 |  1  1  0  1  1
. . . x      .    |    2 |    *    * 960    * |   0   0   2   0   0   0   2   0   2 |   0   1  0   2   0   2   1  0   1  2 |  1  0  1  2  1
. . . .      x    |    2 |    *    *   * 1920 |   0   0   0   1   0   1   0   1   1 |   0   0  1   0   1   1   0  1   1  1 |  0  1  1  1  1
------------------+------+--------------------+-------------------------------------+--------------------------------------+---------------
x3o . .      .    |    3 |    3    0   0    0 | 640   *   *   *   *   *   *   *   * |   1   1  1   0   0   0   0  0   0  0 |  1  1  1  0  0
x . x .      .    |    4 |    2    2   0    0 |   * 960   *   *   *   *   *   *   * |   1   0  0   1   1   0   0  0   0  0 |  1  1  0  1  0
x . . x      .    |    4 |    2    0   2    0 |   *   * 960   *   *   *   *   *   * |   0   1  0   1   0   1   0  0   0  0 |  1  0  1  1  0
x . . .      x    |    4 |    2    0   0    2 |   *   *   * 960   *   *   *   *   * |   0   0  1   0   1   1   0  0   0  0 |  0  1  1  1  0
. o3x .      .    |    3 |    0    3   0    0 |   *   *   *   * 640   *   *   *   * |   1   0  0   0   0   0   1  1   0  0 |  1  1  0  0  1
. o . . *b4/3x    |    4 |    0    0   0    4 |   *   *   *   *   * 480   *   *   * |   0   0  1   0   0   0   0  1   1  0 |  0  1  1  0  1
. . x3x      .    |    6 |    0    3   3    0 |   *   *   *   *   *   * 640   *   * |   0   0  0   1   0   0   1  0   0  1 |  1  0  0  1  1
. . x .      x4*c |    8 |    0    4   0    4 |   *   *   *   *   *   *   * 480   * |   0   0  0   0   1   0   0  1   0  1 |  0  1  0  1  1  {8}
. . . x      x    |    4 |    0    0   2    2 |   *   *   *   *   *   *   *   * 960 |   0   0  0   0   0   1   0  0   1  1 |  0  0  1  1  1
------------------+------+--------------------+-------------------------------------+--------------------------------------+---------------
x3o3x .      .    ♦   12 |   12   12   0    0 |   4   6   0   0   4   0   0   0   0 | 160   *  *   *   *   *   *  *   *  * |  1  1  0  0  0
x3o . x      .    ♦    6 |    6    0   3    0 |   2   0   3   0   0   0   0   0   0 |   * 320  *   *   *   *   *  *   *  * |  1  0  1  0  0
x3o . . *b4/3x    ♦   24 |   24    0   0   24 |   8   0   0  12   0   6   0   0   0 |   *   * 80   *   *   *   *  *   *  * |  0  1  1  0  0
x . x3x      .    ♦   12 |    6    6   6    0 |   0   3   3   0   0   0   2   0   0 |   *   *  * 320   *   *   *  *   *  * |  1  0  0  1  0
x . x .      x4*c ♦   16 |    8    8   0    8 |   0   4   0   4   0   0   0   2   0 |   *   *  *   * 240   *   *  *   *  * |  0  1  0  1  0
x . . x      x    ♦    8 |    4    0   4    4 |   0   0   2   2   0   0   0   0   2 |   *   *  *   *   * 480   *  *   *  * |  0  0  1  1  0
. o3x3x      .    ♦   12 |    0   12   6    0 |   0   0   0   0   4   0   4   0   0 |   *   *  *   *   *   * 160  *   *  * |  1  0  0  0  1
. o3x . *b4/3x4*c ♦   24 |    0   24   0   24 |   0   0   0   0   8   6   0   6   0 |   *   *  *   *   *   *   * 80   *  * |  0  1  0  0  1
. o . x *b4/3x    ♦    8 |    0    0   4    8 |   0   0   0   0   0   2   0   0   4 |   *   *  *   *   *   *   *  * 240  * |  0  0  1  0  1
. . x3x      x4*c ♦   48 |    0   24  24   24 |   0   0   0   0   0   0   8   6  12 |   *   *  *   *   *   *   *  *   * 80 |  0  0  0  1  1
------------------+------+--------------------+-------------------------------------+--------------------------------------+---------------
x3o3x3x      .    ♦   60 |   60   60  30    0 |  20  30  30   0  20   0  20   0   0 |   5  10  0  10   0   0   5  0   0  0 | 32  *  *  *  *
x3o3x . *b4/3x4*c ♦  192 |  192  192   0  192 |  64  96   0  96  64  48   0  48   0 |  16   0  8   0  24   0   0  8   0  0 |  * 10  *  *  *
x3o . x *b4/3x    ♦   48 |   48    0  24   48 |  16   0  24  24   0  12   0   0  24 |   0   8  2   0   0  12   0  0   6  0 |  *  * 40  *  *
x . x3x      x4*c ♦   96 |   48   48  48   48 |   0  24  24  24   0   0  16  12  24 |   0   0  0   8   6  12   0  0   0  2 |  *  *  * 40  *
. o3x3x *b4/3x4*c ♦  192 |    0  192  96  192 |   0   0   0   0  64  48  64  48  96 |   0   0  0   0   0   0  16  8  24  8 |  *  *  *  * 10