National Geographic has an interesting story on hair found in hyena coprolites. The coprolites were in strata that date to about 195,000-257,000 years ago.
From National Geographic:
Backwell and her colleagues used tweezers to extract 40 fossilized hairs resembling glass needles from one of the hyena coprolites.
Scanning-electron-microscope images revealed wavy bands of scales on the hairs–a pattern typical of modern primates, with human hair being the closest match.
Unfortunately, DNA could not be extracted from the hair. As to what species the hair belongs to Homo heidelbergensis and H. sapiens are the likely candidates.
A paper on the subject is in the Journal of Archaeological Science.