shared by its infraorder, Venyukovioidea. Perhaps one of the most striking cranial anatomy feature of Suminia is its similarity in masticatory architecture with dicynodonts, indicating that the sliding jaw articulation may have originated before dicynodonts. Suminia dentition have significant implications on its feeding ecology which is discussed below. Post cranial anatomy Study into Suminia post cranial anatomy reveal many autapomorphies for the single specimen. Significant post cranial autapomorphies of Suminia are the reduced number of presacral and dorsal vertebrae (exclusively amphicoelous) with lack of fusion in the sacral region between vertebrae (suggests high flexibility), wide pre- and postzygapophyses, longer proportions of cervical pleurocentra, distinct proportionally longer limbs, a manus that forms ~ 40% of the length of the forelimb with particularly long, curved terminal phalanges, a pes that makes up ~38% of the hindlimb, and enlarged carpal 1 and tarsal 1 (suggests divergent first digit). These different morphological features indicate a significantly deviated post cranial anatomy from other anomodonts, suggesting that Suminia adopted an arboreal lifestyle (see below). Feeding ecology In combination with a masticatory architecture similar to Dicynodonts (defined by sliding jaw articulation) Suminia’s canineless, large leaf shaped teeth follow occluding dentition that is completely marginal which differs from other species with leaf-shaped teeth present. This provides indications not only for herbivory, but into the mechanisms of oral processing. One interesting feature of the occlusal pattern in Suminia dentition is the angle of the occluding surfaces. With an angle of 75 degrees from jaw plane, it is suggested that Suminia’s more posterior shreds food material rather than crush it. The anterior teeth are observed to be significantly larger and devoid of this occlusial pattern. Therefore, the more anterior teeth are suggested to be responsible for cutting off pieces of plant for the posterior teeth to shred. Suminia are therefore understood to have been obligatory herbivores as the dentition and mandibular function permits shredding of plant material via posterior translation. Teeth replacement was discovered to be infrequent which was shown in certain specimen of Suminia getmanovi that were seen to have teeth worn down almost to the neck. However, these wear facets on the upper and lower posterior teeth are in themselves, consistent with herbivory in that the locations of the wear (labial and lingual aspects of upper and lower posterior teeth respectively), are distinct evidence that the wear isn't a consequence of tooth-to-food but rather tooth-to-tooth occlusion. The evidence