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Re: Sinosauropteryx filament melanosomes challenged
On Mon, Dec 6, 2010 at 1:42 PM, Dann Pigdon <firstname.lastname@example.org> wrote:
> On Tue, Dec 7th, 2010 at 5:38 AM, email@example.com wrote:
>> I think the word 'reptile' (or 'Reptilia', etc.) should just be dropped from
>> any phylogenetic
>> system; it just confuses the public to make Reptilia include birds.
>> "Reptile" is a perfectly good
>> word for "ectothermic amniote";
> Yet crocs are also archosaurs, and only secondarily ectothermic. By your
> definition that would
> make them secondarily reptilian as well.
Or at least that's a possibility.
Naked mole rats might also be "secondarily reptilian" (unless you
consider them "endothermic poikilotherms"--although this at least
raises the point that endothermy/ectothermy is not a binary issue).
> So much for attempting to avoid confusion... :-)
T. Michael Keesey
Technical Consultant and Developer, Flex Specialist