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Re: New refs (long) cont. (short)




DinoBoyGraphics@aol.com wrote:

Surely you aren't referring to the amount of morphological diversity? It far exceeds that of dinosaurs. There are no brachiating dinosaurs, no cetacean analogs, no sea
otter analogs.

The same can be said for the entire Archosauria - which, AFAIK, all conform to the same reproductive method (laying eggs). Yet, we *know* that this group includes both modern ectotherms (crocs) and endotherms (birds).


Your argument is this:

(1) Placentals display a great deal of morphological diversity, and all are true endotherms.

(2) Therefore... Dinosaurs, which display less morphological diversity than placentals, cannot have shown any metabolic diversity.

This is not a scientific argument.




Tim

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