This non-compact hyperbolic tesselation uses squat in the sense of an infinite horohedron as one of its cell types. And furthermore the squat variant x4o4q is being used in the sense of an infinite horohedron for its vertex figure.

Incidence matrix according to Dynkin symbol

x3oØo4*a3oØo4*a   (N,M,K → ∞)

. . .    . .    | 12NM ♦    4K |   2K   2K   2K   2K |    K   K   K   K
----------------+------+-------+---------------------+-----------------
x . .    . .    |    2 | 24NMK |    1    1    1    1 |    1   1   1   1
----------------+------+-------+---------------------+-----------------
x3o .    . .    |    3 |     3 | 8NMK    *    *    * |    1   1   0   0
x . o4*a . .    |    4 |     4 |    * 6NMK    *    * |    0   0   1   1
x . . *a3o .    |    3 |     3 |    *    * 8NMK    * |    1   0   1   0
x . .    . o4*a |    4 |     4 |    *    *    * 6NMK |    0   1   0   1
----------------+------+-------+---------------------+-----------------
x3o . *a3o .    ♦    6 |    12 |    4    0    4    0 | 2NMK   *   *   *
x3o .    . o4*a ♦   12 |    24 |    8    0    0    6 |    * NMK   *   *
x . o4*a3o .    ♦   12 |    24 |    0    6    8    0 |    *   * NMK   *
x . o4*a . o4*a ♦   2M |    4M |    0    M    0    M |    *   *   * 6NK