Want to read Slashdot from your mobile device? Point it at m.slashdot.org and keep reading!


Forgot your password?
Check out the new SourceForge HTML5 internet speed test! No Flash necessary and runs on all devices. ×

Most Primitive Snake Fossil Discovered 77

smooth wombat writes "A newly discovered fossil seems to suggest that snakes evolved on land rather than in the water. The size of the fossil is unknown but it wasn't more than three feet long according to Hussam Zaher of the University of Sao Paulo in Brazil. It's the first time scientists have found a snake with a sacrum -- a bony feature supporting the pelvis -- he said. That feature was lost as snakes evolved from lizards, and since this is the only known snake that hasn't lost it, it must be the most primitive known, he said."
This discussion has been archived. No new comments can be posted.

Most Primitive Snake Fossil Discovered

Comments Filter:
  • Re:Huh? (Score:4, Informative)

    by FroBugg ( 24957 ) on Thursday April 20, 2006 @12:48AM (#15162633) Homepage
    Yes and no.

    This snake, with the sacrum, had to come before modern snakes. But evolution isn't a process of an entire species becoming an entire new species.

    A group of these snakes could have been geographically isolated, during which time they evolved further, losing the sacrum. Meanwhile, others of this species were still happily breeding elsewhere.

    So it could be possible to find a sacrum-less fossil older (though probably not by much) than this one.

Mediocrity finds safety in standardization. -- Frederick Crane