District archaeologist assistant Nick Best spoke about the find to Ashington and Blyth local council members.
Best believes, “it is very likely that they are medieval, and there is a chance that they may belong to the very early Middle Ages.”
Archaeologists plan to carbon date the bones to confirm their age.
Historic finds are not uncommon in Lindisfarne, home to a monastery founded in 635 by the Irish monk Saint Aidan.
The famous Lindisfarne Gospels were created on the island, and in 793 the monastery was raided by the Vikings.
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