This brief review summarizes new paleontological and molecular data that together support
a late middle Eocene Afro‐Arabian origin for crown Lorisiformes. Phylogenetic analysis …

Primate evolutionary studies rely significantly on dental variation given the large role that
teeth play in how an organism interacts with its environment (animal and plant) and …

Background The taxonomic and phylogenetic relationships of New World monkeys
(Platyrrhini) are difficult to distinguish on the basis of morphology and because diagnostic …

Kelba quadeemae, a fossil mammal from the Early Miocene of East Africa, was originally
named on the basis of three isolated upper molars. Kelba has previously been interpreted …

Change in body mass with time has been considered for many clades, often with reference
to Cope's rule, which predicts a tendency to increase in body size. A more general rule …

A new mammalian genus and species from the earliest late Eocene of Egypt is represented
by a lower jaw fragment and two isolated lower molars. A rare combination of features and …

The early fossil record of primates is very rich, but it is limited to nonrandom windows in time
and space based on vagueries of historical geology. Most primates known are fossil taxa …

In order to assess the orientation of the orbit of Bahinia, a middle Eocene fossil from
Mynamar that has been interpreted as an anthropoid, laser surface scanning was used to …

No individual has contributed more to the growth of knowledge about mammalian evolution
in the Early Tertiary of Africa than Elwyn Simons. For 45 years he has steadfastly worked the …