This specimen is referable to the tritylodontid cynodont Oligokyphus based on the presence of two longitudinal rows with three distinct cusps each on the molariform.
First record of the tritylodontid cynodont Oligokyphus and cynodont postcranial bones from the McCoy Brook Formation of Nova Scotia, Canada.
Although two different groups of very mammal-like non-mammalian cynodonts are known from the McCoy Brook Formation, no diagnostic skeletal remains of mammaliaforms have yet been recorded from this unit.
2011) argued for strong provinciality in the moist equatorial Pangaean region; there, traversodontid cynodonts are abundant, whereas remains of these therapsids are rare or absent and procolophonid reptiles are abundant in the Northern Hemisphere subtropics (as, for example, in the Evangeline Member of the Wolfville Formation).
Among the remains, the researchers identified seven previously unknown species, including four cynodonts
, which were the earliest mammal-like reptiles, and one rynchosaur, a parrot-beaked reptile of a group that disappeared shortly after dinosaurs emerged.