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Re: Ave Maria
On Monday, September 8, 2003, at 12:29 PM, T. Michael Keesey wrote:
From: "T. Michael Keesey" <firstname.lastname@example.org>
Date: Mon Sep 8, 2003 12:29:15 PM Australia/Canberra
Subject: Re: Ave Maria
--- email@example.com wrote:
Hasn't the class Aves been subsumed into Reptilia, thereby rendering
all birds as dinosauria? Or is this still just hypothesis?
Under phylogenetic taxonomy and the most widely accepted phylogenetic
hypotheses, _Aves_ (the last common ancestor of _Archaeopteryx_ and
birds, plus all descendants) is part of _Dinosauria_ (the last common
of _Iguanodon_ and _Megalosaurus_, plus all descendants), which is
_Reptilia_ (the last common ancestor of _Testudines_, _Sphenodon_,
and _Crocodylia_, plus all descendants).
This does not have any direct bearing on the question of whether, e.g.,
_Deinonychus_ is avian or not.
It doesn't, but what is Aves now if it isn't a class?