21. The premaxillary bones extend slightly in front of the upper incisors and the zygomatic arches ( cheekbones ) are broad. 22. In non-mammalian vertebrates, the zygomatic bone is referred to as the jugal bone, since these animals have no zygomatic arch . 23. Cynognathians can be identified by several synapomorphies including a very deep zygomatic arch that extends above the middle of the orbit. 24. When compared with a lion, it is long and very narrow, particularly in the muzzle and width of the zygomatic arches . 25. The zygomatic arches are missing in the skull, which are present in most mammals even of that size, such as rodents. 26. Lefort I-Slight swelling of the upper lip, ecchymosis is present in the buccal sulcus beneath each zygomatic arch , malocclusion, mobility of teeth. 27. The greater noctule bat has a robust skull and its zygomatic arches are very slender and the braincase is smooth, turned upwards. 28. Here the more recent interpretation is followed . | group = Note } } and a deep zygomatic arch ( cheekbone ). 29. The rings around the eyes are either rounded or diffused-edged on top, while the bottom occasionally extends down below the zygomatic arch . 30. The dark rings around its eyes are usually rounded on top, though sometimes diffuse-edged, and they never reach below the zygomatic arch .
