[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Subject Index][Author Index]
Re: Sinosauropteryx filament melanosomes challenged
On Tue, Dec 7th, 2010 at 5:38 AM, firstname.lastname@example.org 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"; it doesn't need to be crammed into
> designating a clade, any
> than 'fish' (="non-tetrapod vertebrates"?) does. Clades are not the only
> useful categories.
> So (IMO) crocodiles should be 'reptiles'; dinosaurs should not.
Yet crocs are also archosaurs, and only secondarily ectothermic. By your
definition that would
make them secondarily reptilian as well. So much for attempting to avoid
Spatial Data Analyst Australian Dinosaurs
Melbourne, Australia http://home.alphalink.com.au/~dannj