<i>Fedexia striegeli</i> Skull Views (IMAGE)

Carnegie Museum of Natural History

<i>Fedexia striegeli</i> Skull Views

Caption

This is the exquisitely preserved skull of Fedexia striegeli. Fedexia, described by researchers at Carnegie Museum of Natural History in Pittsburgh, Pa., provides evidence that the first widespread occurrence of terrestrial vertebrates 300 million years ago was in response to a brief episode of a globally warmer, drier climate.

Credit

Mark A. Klingler/Carnegie Museum of Natural History

Usage Restrictions

credit must be included

License

Licensed content

Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.