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Re: Feduccia's delusion
On Sat, 1 Dec 2001 Dinogeorge@aol.com wrote:
> In a message dated 12/1/01 1:58:29 PM EST, tmk@dinosauricon.com writes:
>
> << A crown clade is a type of node-based clade in which all the specifiers
> are extant. The specifiers for this clade are _Crocodylia_, _Neornithes_
> (=_Aves sensu stricto_), and _Lepidosauria sensu stricto_, all of which
> are extant. Hence it is a crown clade. >>
>
> This is a little broader definition than I'm familiar with, but I don't see a
> problem with it.
Which is the one you are familiar with?
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