Here, we sample small proteomes from the interior enamel of 10 fossils deposited at seven paleontological sites between 1.5 and 29 Ma in the Turkana Basin, a region of northern Kenya in the East African Rift System. We find enamel protein fragments in all fossil specimens including a 29 Ma Arsinoith...
ORGANISM(S): Hippopotamidae Indet. Arsinoitheriidae Indet. Archaeopotamus Palaeoloxodon Recki Prodeinotherium Hobleyi Chilotheridium Gomphotheriidae Indet. Rhinocerotidae Indet. Brachyodus Aequatorialis Zygolophodon Sp.