The skull may be diagnosed by specific dental features.
Teilhardina is the most primitive of the anaptomorphines with respect a number of dental features (e.g. four premolars and relatively unreduced canine).
Biologists presently identify three subspecies of this monkey, which can be distinguished primarily by the length of their tails, as well as by certain skeletal and dental features.
More recently, the structure and general presence of the toothcomb in Bugtilemur has been questioned, as well as many other dental features, suggesting it is most likely an adapiform.
By studying jaw structure and dental features, Dr. Stefan determined that the skeletons were probably those of local Indians.
Over time, different mammal groups have evolved distinct dental features, in the number and type of teeth, and in the shape and size of the chewing surface.
Likewise, they are only weakly linked to other toxodonts by a few dental features, and their primitive cheek tooth pattern can be basal to all notoungulates except notioprogonians.
We would certainly recommend ophthalmic and dental screening as in our experience over 80% of affected patients manifest retinal changes and or dental features.
These features sets Propliopithecus apart from Aegyptopithecus, which had big canine teeth along with other more normal simian dental features.
Both are considered stem lemuriforms because despite sharing a number of traits, it is suspected that they lacked a toothcomb, a dental feature unique to lemuriforms.