Fossilized Tracks (IMAGE)

University of Alberta

Fossilized Tracks

Caption

This sample of black shale contains string-like fossilized tracks that may have been left behind by multicellular organisms 2.1 billion years ago. (Photo courtesy of courtesy of Abder El Albani)

Credit

Abder El Albani

Usage Restrictions

with credit to Abder El Albani

License

Licensed content

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