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Re: Dixie the Dino
>From: email@example.com (Warren Raddatz)
> ...is there any thought given to the possibility of
> live birth in dinos?
Yes, it has been considered. At best it is speculative at this
time. The only positive evidence we have is for oviparity (egg-
laying). We have eggs from a fair number of different dinosaurs
subgroups, but we have *no* instances of embryonic dinos in
internal position relative to a possible parent.
[There *is* this sort of evidence for ichthyosaurs].
Also, there are some large eggs of unclear affinities of the right
age to be sauropod eggs.
> Some herps have live birth and she just looks so big
> and the egg is so small. I have vauge questions about growth rates,
> altricial vs. precocial babies etc
Known dinosaur eggs and embryos span the range from altricial
to precocial hatching.
Thus, the current best evidence generally favors egg-laying in
dinosaurs, though this does not rule out live birth in some
The peace of God be with you.