Oligopithecidae

Oligopithecus is a fossil primate that lived in Africa during the Early Oligocene. It is represented by one species, Oligopithecus savagei, known from one jaw bone found in Egypt.

Oligopithecidae is an extinct basal Catarrhine family from the late Eocene of Egypt (about 37 million years ago) as sister of the rest of the Catarrhines. Its members were probably insectivorous, due to their simple molars and cusp arrangement.

Catopithecus is an early catarrhine fossil. It is known from more than 16 specimens of a single species, Catopithecus browni, found in the Jebel Qatrani Formation of the Faiyum Governorate, Egypt. The Jebel Qatrani Formation has been divided into two main faunal zones based on the fact that the fauna found in the lower portion of the quarry appear to be more primitive than those found in the upper section. The upper zone has been dated to older than 31 ± 1 myr based on the dating of a basalt layer that lies immediately above the formation and Nicolas Steno's Law of Superposition. The lower zon