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A comment on 85,000-year-old Finger Bone Complicates Understanding of African Migration. Parent comment

Re:85,000-year-old Finger Bone Complicates Understanding of ... by gus_massa on Monday April 09, 2018 @10:44PM (#16798636)
They are not dating the bone, they are dating the mud around the bone. To be more precise, they are dating the last time the mud around the bone received sunlight. (And from the patterns in the mud they are sure that nobody dig a hole at midnight to put the bone there.)
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Re:85,000-year-old Finger Bone Complicates Understanding of ... by jonhendry18 on Thursday April 12, 2018 @06:36AM (#16819481)
They also dated the bone.
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