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The team argues that the gorilla's divergence date from the human lineage is not about 8 million years ago as previously surmised (S. Kumar et al. Proc. Natl Acad. Sci. USA102, 18842–18847; 2005), but "greater than 10 to 11 million years ago" on the basis of the age of the new species.
The combined evidence suggests that Chororapithecus may be a basal member of the gorilla clade, and that the latter exhibited some amount of adaptive and phyletic diversity at around 10–11 Myr ago.