ANT101H5 Lecture Notes - Orrorin, Femur, Sahelanthropus
Document Summary
Prosimian radiation: radiation means that species that diversifies into a diversity of niches, lemurs and loires ancestors. 1st anthropoids: ancestors of monkeys, apes an humans. Anthropoid radiation: lots of different kinds of monkeys, apes and humans (ancestors not modern) Start to see a lot more animal species that are more like anthropoids. 1st hominoids: ancestor of apes and human (and all extinct human ancestors) Hominoid radiation: wide diversity these kinds of animals that fossil apes and humans would have done. More closely related to the hominins than old world monkeys. Chimp size or bigger larger body (trend for the primates) Most of them are so derived, that they are specialized into an adaptive niche. We haven"t found the most direct ancestors for the hominoids. Exception: celopithicus might be the ancestor for the organatang. We are interested in our direct ancestors, hominins: apes are not included. Ancestry is more complicated (as you can see in the lower chart)
