What is this thing I have found?

Asked February 16, 2017, 7:40 PM EST

Hello. I found this on the bank of the Columbia River today. I think it is from a sturgeon but it looks too big to be a scale. Could you possibly tell me what it is please? Thanks so much. Patricia Hampel.

Oregon bone identification fossil

1 Response

Hello: That is a fish operculum or the bone that constitutes the opercle of the fish. It may be from a salmon or a carp (based on its size).

https://en.wikipedia.org/wiki/Operculum_(fish)