The rudolfensis specimens have large brains in conjunction with megadont postcanines, and without postcranial evidence it is unknown whether these features are due to a larger body size than contemporary
habilis specimens.
Although the fossil record for the first members of the Homo genus is poor, the earliest definitive H.
habilis specimen is about 2.4 million years old.
One
habilis specimen is less than 550 cc; about half a dozen others range from about 590 cc to 750 + cc.
The teeth are larger than
any habilis specimen, and seem to show definite Homo — like patterns.
Not exact matches
But the Ledi - Geraru
specimen is not likely to be a member of H.
habilis itself, Spoor says.
The type
specimen of H.
habilis, for example, includes a 1.8 - million - year - old lower jaw called OH 7 from Olduvai Gorge in Tanzania.
The
specimen probably represents a member of the earliest species of the genus Homo, H.
habilis (or H. modjokertensis), also known in Africa from Olduvai, Omo, Sterkfontein and Swartkrans.
Every species has, or should have, a type
specimen, so only if the type
specimen of Homo
habilis (which is Olduvai Hominid 7, or OH7 for short) is found to belong to some other species does the name Homo
habilis lapse into synonymy.
It is a
specimen of Homo
habilis, with a cranial capacity of 673cc.
Scott claims that «The first «homo
habilis»
specimen ever discovered was actually zinjanthropus...».
The
specimen is now thought to date to approximately 1.8 myr (Leakey et al. may have been more willing to attribute the
specimen to
habilis had they known the real antiquity of the
specimen from the beginning).
The simplest way to describe the general features is to describe
specimens that are generally considered
habilis by most people, and list their relevant traits.
This is a poorly preserved and fragmentary
specimen of a 15 — 16 year old female
habilis, dating to a little younger than 1.66 myr.