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Description: | Specimen of a fossil fish, Knightia eoceana Cope, collected from the Green River Formation (?) of Tertiary, Early - Middle Eocene, Ypresian - Lutetian (?) age from Green River, Wyoming, U.S.A..
This freshwater fossil fish comes from the Green River Formation in the USA, one of the worlds 'super fossil sites'. It is the state fossil of Wyoming, and was named after the first state geologist, Wilbur Clinton Knight. Knightia is a relative of the present day herring, and grew to a length of 10 to 25 centimetres. It lived in large shoals. The fish population died out very abruptly and large numbers were preserved in the fine-grained lake sediments.
The specimen was found in USA.
It is from the Tertiary period (65 - 1.8 million years ago) | Publisher: | Tyne & Wear Archives & Museums | Subjects: | Classification: Chordata Pisces | Temporal: | Tertiary period (65 - 1.8 million years ago) | Source: | Tyne & Wear Archives & Museums | Identifier: | http://www.twmuseums.org.uk/geofinder/se... | Go to resource |
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