Shark fossils go back more than 400 million years — before the first true trees formed forests on land. 12
The earliest true trees, such as Archaeopteris, arrived later in the Devonian, around 385 million years ago. 3
References
- 1NOAA National Marine Sanctuaries: Shark Background
sanctuaries.noaa.gov
- 2
- 3Britannica: Archaeopteris
britannica.com


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