Fig. 7. Catopsbaatar catopsaloides, reconstruction of the skull, based on all available specimens, in lateral view. The reconstruction is of an adult individual, but the upper premolars P1 and P3, which disappear during ontogeny, are reconstructed. The bones of the orbit, not preserved in ZPAL and PM specimens and very fragmentarily preserved only in PIN 4537/4 and /5, have not been reconstructed. The dorsal part of the maxilla/squamosal suture is tentatively reconstructed on the basis of PIN 4537/5 (Fig. 3C, D) and a comparison with Djadochtatherium (Fig. 11B). The arrow points to the posterior zygomatic "ridge" (muscle scar), preserved on the squamosal above the glenoid fossa and discernible in occipital view. The teeth not marked on the dentary are p4 and m1, on maxilla P4 and M1.

Published as part of Kielan-Jaworowska, Zofia, Hurum, Jørn H. & Lopatin, Alexey V., 2005, Skull structure in Catopsbaatar and the zygomatic ridges in multituberculate mammals, pp. 487-512 in Acta Palaeontologica Polonica 50 (3) on page 498, DOI: 10.5281/zenodo.13620665