It either can be thought of as a degenerate 5D segmentotope with zero height, or as a 4D euclidean decomposition of the larger base into smaller bits.

Incidence matrix according to Dynkin symbol

oo3oo3xx4ox&#x   → height = 0
(rit || tat)

o.3o.3o.4o.    | 32  * |  6  2  0  0 |  6  3  6  1  0  0 |  2 3  6  3  0 0 | 1  2 3 0
.o3.o3.o4.o    |  * 64 |  0  1  3  1 |  0  0  3  1  3  3 |  0 0  3  3  1 3 | 0  1 3 1
---------------+-------+-------------+-------------------+-----------------+---------
.. .. x. ..    |  2  0 | 96  *  *  * |  2  1  1  0  0  0 |  1 2  1  1  0 0 | 1  1 2 0
oo3oo3oo4oo&#x |  1  1 |  * 64  *  * |  0  0  3  1  0  0 |  0 0  3  3  0 0 | 0  1 3 0
.. .. .x ..    |  0  2 |  *  * 96  * |  0  0  1  0  2  1 |  0 0  1  1  1 2 | 0  1 2 1
.. .. .. .x    |  0  2 |  *  *  * 32 |  0  0  0  1  0  3 |  0 0  0  3  0 3 | 0  0 3 1
---------------+-------+-------------+-------------------+-----------------+---------
.. o.3x. ..    |  3  0 |  3  0  0  0 | 64  *  *  *  *  * |  1 1  1  0  0 0 | 1  1 1 0
.. .. x.4o.    |  4  0 |  4  0  0  0 |  * 24  *  *  *  * |  0 2  0  1  0 0 | 1  0 2 0
.. .. xx ..&#x |  2  2 |  1  2  1  0 |  *  * 96  *  *  * |  0 0  2  1  0 0 | 0  1 2 0
.. .. .. ox&#x |  1  2 |  0  2  0  1 |  *  *  * 32  *  * |  0 0  0  3  0 0 | 0  0 3 0
.. .o3.x ..    |  0  3 |  0  0  3  0 |  *  *  *  * 64  * |  0 0  1  0  1 1 | 0  1 1 1
.. .. .x4.x    |  0  8 |  0  0  4  4 |  *  *  *  *  * 24 |  0 0  0  1  0 2 | 0  0 2 1
---------------+-------+-------------+-------------------+-----------------+---------
o.3o.3x. ..    ♦  4  0 |  6  0  0  0 |  4  0  0  0  0  0 | 16 *  *  *  * * | 1  1 0 0
.. o.3x.4o.    ♦ 12  0 | 24  0  0  0 |  8  6  0  0  0  0 |  * 8  *  *  * * | 1  0 1 0
.. oo3xx ..&#x ♦  3  3 |  3  3  3  0 |  1  0  3  0  1  0 |  * * 64  *  * * | 0  1 1 0
.. .. xx4ox&#x ♦  4  8 |  4  8  4  4 |  0  1  4  4  0  1 |  * *  * 24  * * | 0  0 2 0
.o3.o3.x ..    ♦  0  4 |  0  0  6  0 |  0  0  0  0  4  0 |  * *  *  * 16 * | 0  1 0 1
.. .o3.x4.x    ♦  0 24 |  0  0 24 12 |  0  0  0  0  8  6 |  * *  *  *  * 8 | 0  0 1 1
---------------+-------+-------------+-------------------+-----------------+---------
o.3o.3x.3o.    ♦ 32  0 | 96  0  0  0 | 64 24  0  0  0  0 | 16 8  0  0  0 0 | 1  * * *
oo3oo3xx ..&#x ♦  4  4 |  6  4  6  0 |  4  0  6  0  4  0 |  1 0  4  0  1 0 | * 16 * *
.. oo3xx4ox&#x ♦ 12 24 | 24 24 24 12 |  8  6 24 12  8  6 |  0 1  8  6  0 1 | *  * 8 *
.o3.o3.x4.x    ♦  0 64 |  0  0 96 32 |  0  0  0  0 64 24 |  0 0  0  0 16 8 | *  * * 1