[4] Lophorhinus and Lobalopex differ in their shape of anterior vomer, arrangement of palatal teeth, paired nasals, and the height of the supraorbital boss.
[5] The Lobalopex fossil was found by collectors working under the guidance of Dr. Colin MacRae of the Geolohical Survey of South Africa.
Based on this fossil, the holotype paper describes the characterization of the genus by a low median nasal eminence, a small and unpachyostosed supraorbital boss, small posteriorly projecting supratemporal “horns”, the ventral surface of the transverse flange of pterygoid being edentulous and sharply rigid, and a laterally directed knob present between pterygoid and palatine dentigerous bosses.
Using a few limb bones and vertebrae of various specimens, researchers have hypothesized that their postcranial skeleton is similar to gorgonopsians, and they maintain a sprawling posture.
[6] There has also been recent finding of three juvenile burnetiamorph skulls, differing from adults by their large orbits, open cranial structures, and incomplete ossification of the braincase.
[7] The skull of Lobalopex retains many primitive features of biarmosuchians, including a broad intertemporal region and small lateral temporal fenestrae.
Due to the plane of the zygapophyseal facets and other observations of the skull, researchers hypothesized that the head was held at about a right angle from the neck.
[1] The skull of Lobalopex mordax was found in the Permian Teekloof Formation (Tropidostoma Assemblage Zone) of the Victoria West District, South Africa.
The discovery of Isengops led to further cladistic analysis, discovering that the Russian biarmosuchians are scattered throughout the phylogenetic tree and do not form a sister clade with each other.