Well-preserved fossils have been found in the 400-million year old MISC@1 cherts of LOCATION@1 , which look surprisingly modern , indicating that the basic structure of the harvestmen has not changed much since then .

Well-preserved fossils have been found in the 400-million year old MISC@1 cherts of LOCATION@1 . This may indicate that the basic structure of the harvestmen has not changed much since then .
