The lower jaw of Viatkogorgon was typical for gorgonopsians, unlike that of Nochnitsa, with a tall mandibular symphysis (the area where the two halves of the mandible connected at the front) and distinct mentum (or "chin"). The lower jaw was somewhat shorter than the upper jaw. The lower teeth are badly preserved in the holotype, but they appear to have been very similar to the upper; the single preserved incisor is recurved and spatulate, and the lower postcanine is weakly recurved, and both at least have serrations on their hind edges. The dentary bone (the tooth-bearing bone at the front of the lower jaw) was generally taller than that of Nochnitsa, and its coronoid process (part of where the jaw connected to the skull) sloped more sharply, with a weakly concave hind edge, as is typical in gorgonopsians. The articular bone (which formed the jaw-joint) was typical of gorgonopsians and had a downward protruding retroarticular process (a process at the back of the jaw where muscles attached).
