Tetrapods older than once thought

Fossil tracks in Poland provide the earliest evidence yet for the emergence of tetrapods; placing them back as far as 395 million years ago. Read about the discovery at Pharyngula.

If you want a little science denialism with your chordate evolution news, you can go with this knee-slapper from The Christian Post. It turns out that these footprints don’t add yet another useful data point to the evolutionary theory, rather they overthrow the whole thing because the earliest known date of tetrapods was pushed back 20 million years. *Snickers*

My new theory of tetrapod evolution is that the lobe-fins grew legs in order to flee from the mantis shrimp, which arose around the same time.

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I have moved.
Arthropoda can now be found here.

Michael Bok is a graduate student studying the visual system of mantis shrimp.

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