What came first, the snake or the egg?

Posted by Chris Harper on August 26, 2001 at 20:19:43:

In Reply to: Anybody see the tread about the Bible on the corn forum? posted by Adam Block on August 26, 2001 at 07:13:36:

This is really two different questions. First, what came first, the snake or the first amniotic egg? Or second, what came first, the snake or the snake egg?

As far as the former, obviously the egg preceded the snake in evolutionary history. The far more interesting question (and one that science has not yet answered) is what came first, the reptile or the amniotic chorion?

Regarding the latter, we don't know. However, it is assumed that the oviparity condition is ancestral in reptiles and that "ovoviviparity" is derived. However, that does not mean that oviparity in ancestral in snakes or squamates in general for that matter.

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: This is really two different questions. First, what came first, the snake or the first amniotic egg? Or second, what came first, the snake or the snake egg? : As far as the former, obviously the egg preceded the snake in evolutionary history. The far more interesting question (and one that science has not yet answered) is what came first, the reptile or the amniotic chorion? : Regarding the latter, we don't know. However, it is assumed that the oviparity condition is ancestral in reptiles and that "ovoviviparity" is derived. However, that does not mean that oviparity in ancestral in snakes or squamates in general for that matter.

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