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Re: New refs
Brian Lauret wrote:
> Considering "hysilophodontids" were the ancestral Iguanodontoids it seems
> rather strange they were endotherms while their
> descendants, hadrosaurs, weren't.
Weren't the ancestors of crocs endothermic? I have no trouble with
secondarily-ectothermic (or non-endothermic; a big catagory) dinosaurs,
especially as they evolved larger body masses. Perhaps some even started
out as fully endothermic hatchlings, and became somewhat less than
completely endothermic as adults.
Dann Pigdon Australian Dinosaurs:
GIS / Archaeologist http://www.geocities.com/dannsdinosaurs
Melbourne, Australia http://www.alphalink.com.au/~dannj/
- Re: New refs
- From: "Brian Lauret" <email@example.com>