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Re: birds are reptiles?!
From: Tony Thulborn <email@example.com>
> So what exactly is a reptile? Phylogentically, either nothing, or all
> amniotes. So reptile = amniote.
This is only true if youy are a strict cladist.
If you admit that a group can be phylogenetically meaningful even
*if* it does not contain all descendents of the common ancestor,
then reptile != amniote.
Under this approach reptile = the amniote stem group (amniotes not
belonging to derived amniote subgroups)
> So can we please forget the former,
> or at least remember it as an old but inaccurate ...
> description of some amniotic tetrapods, and not use it in day to day
> parlance amongst people who understand perfectly well what an amniote is?
No, because I find I need a word for stem amniotes quite often.
I prefer to use it in that sense, rather than as an equivalent
The peace of God be with you.