Trilobite (IMAGE)

University of Southampton

Trilobite

Caption

Abrupt climate change at the end of the Ordovician Period (~450-440 million years ago) caused the second largest mass extinction in Earth history, including the demise of the trilobite, Selenopeltis (pictured, in Oxford University Museum of Natural History)

Credit

Dr Tom Gernon/University of Southampton [@TMGernon]

Usage Restrictions

No restrictions.

License

CC0

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