Protosiminae is a primitive suborder with a narrow nose, including Protosimidae and Oligosimidae, sometimes including Parasimidae and Episimidae, which belong to two controversial families. Except epilepsy, other families lived in France and nearby areas of Egypt from the late Eocene to the early stage of oligoepilepsy. Paragonidae, with three premolars, is a member of Lepidoptera, and its relationship with Lepidoptera and other early higher primates is unclear. There are many species of Paragonidae, the most famous of which is a bee monkey (right) from Fayong. Ape means calf, and its mandible was mistaken for ungulates when it was first discovered. Oligocene, which lived in the late Eocene, is one of the earliest members of the order Narrowrhinoceros, with small size and primitive characteristics, and little is known about it at present. Protozoa is the most important family, including protozoa, protozoa and Egyptian apes. They have the characteristics of both monkeys and apes, and were once considered to be the most primitive apes, which is a transitional type between monkeys and apes. Recent research shows that they actually belong to the same ancestor type of monkeys and apes. Epileptoptera is a primitive narrow-nosed species, which lived in Miocene Eurasia. Some people think that they belong to anthropomorphic class and are the original members of real apes, while others think that they are the representatives of the late remnants of primitive epilepsy suborder.