The fossil of a molar tooth unearthed in Ramnagar, Uttarakhand, in 2015, belongs to the earliest ancestor of gibbons.
The fossil provides an evidence to understanding the migration of the great apes (chimpanzees, gorillas, orangutans, bonobos and even humans) from Africa to Asia13 million years ago.
The fossil is a complete lower molar tooth and belongs to a previously unknown genus and species, which has now been classified as Kapi ramnagarensis.
It is the first ape species discovered at the location in nearly a century.
It predates the oldest-known fossil record of gibbons by at least five million years.