One of the new specimens, known as KMN-ER 62000, has a face like the type specimen of Homo rudolfensis (the fossil that defines the species, if species it turns out to be), though it seems to be from an adolescent, whereas the type specimen is an adult.

ECONOMIST: Human ancestry has just got more complicated

In 2006, he designated a tortoise specimen at the Smithsonian museum as the new type specimen for the Aldabra tortoise, which he continued to call gigantea.

WSJ

Crucially, 62000 has a reasonably well-preserved upper jaw, which the type specimen lacks.

ECONOMIST: Human ancestry has just got more complicated