For years, this fossil seemed to tell a thrilling story. Here was an animal from more than 300 million years ago that appeared to look like an octopus, complete with what were described as arms, fins ...
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Massive insect body size 300 million years ago may not have been due to high atmospheric oxygen
Three-hundred-million years ago, Earth was very different. The continents had coalesced into Pangea, which was dominated in its equatorial regions by vast coal-swamp forests. With high atmospheric ...
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300 million years ago, insects were enormous. That stopped – and we’re probably wrong about why
Fossil relatives of dragonflies, known as griffinflies, had wingspans of 70 centimeters (28 inches) 300 million years ago, and they weren’t the era’s only insects that far exceeded their modern ...
A famous 300-million-year-old fossil that was thought to be the world's oldest octopus—even featuring in the Guinness Book of Records—has turned out to be something else altogether. In what amounts to ...
Massive insect body size from 300 million years ago may not have been due to high atmospheric oxygen
Comparison of an extinct griffinfly alongside one of the largest living dragonflies, the giant petaltail. (griffinfly credit: Estelle Mayhew, adapted from image by Aldrich Hezekiah. giant petaltail ...
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