fossils

Ancient mass extinction led to dominance of tiny fish, penn paleontologist shows

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Vasika
Udurawane

Writer
According to new research led by the University of Pennsylvania's Lauren Sallan, a mass extinction 359 million years ago known as the Hangenberg event triggered a drastic and lasting transformation of Earth's vertebrate community.
Source: EurekAlert!
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http://sulc.us/4cfbc
http://www.eartharchives.org/articles/ancient-mass-extinction-led-to-dominance-of-tiny-fish-penn-paleontologist-shows/