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Micropithecus clarki, a small ape from the Miocene of Uganda
American Journal of Physical Anthropology
|November 1, 1978
Summary
The smallest known ancient ape, Micropithecus clarki, discovered in Uganda, exhibits facial similarities to modern gibbons and dental resemblances to other early Miocene apes.
Area of Science:
- Paleontology
- Primatology
- Evolutionary Biology
Background:
- The early evolution of hominoids remains incompletely understood.
- Fossil evidence from the Miocene epoch is crucial for tracing primate lineage.
- East Africa is a key region for uncovering early ape fossils.
Observation:
- Micropithecus clarki, a newly described fossil primate from the Ugandan Miocene, is the smallest known hominoid.
- Its facial morphology closely resembles that of extant gibbons.
- Dental features align it with other early Miocene apes like Dendropithecus and Limnopithecus from Kenya.
Findings:
- Micropithecus clarki represents a distinct lineage within early East African apes.
- This group appears to be a single phyletic radiation.
- The East African apes show a clear derivation from Oligocene apes found in Egypt's Fayum region.
Implications:
- This discovery refines our understanding of hominoid diversity during the Miocene.
- It provides insights into the ancestral relationships between early apes and later hominoids.
- The findings suggest a closer evolutionary link between Oligocene Fayum apes and the East African radiation than previously thought, with European Pliopithecus being more distantly related.