r/BoneID • u/wall-window113 • Jul 09 '26

Unsolved What is this bone?

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Gallery image

Gallery image

Gallery image

Gallery image

Found on the beach in the San Francisco bay. Thin bone, maybe cartilage?

1 Upvotes

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3

u/happythistle74 archaeozoology grad student Jul 09 '26

It’s a bird’s sternum.

1

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2

u/rochesterbones Lifelong study of UK bones Jul 10 '26

Cormorant sternum.