. "Archicebus is a genus of fossil primates that lived in the early Eocene forests (~55 million years ago) of what is now Jingzhou in the Hubei Province in central China, discovered in 2003. The only species, A. achilles, was a small primate, estimated to weigh approximately 20\u201330 grams (0.71\u20131.06 oz), and is the only known member of the family Archicebidae."@en . . . . . "Archicebus achilles"@en .