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Re: Definitions



At 01:14 PM 7/24/00 -0400, T. Mike Keesey wrote:
On Mon, 24 Jul 2000, Stanley Friesen wrote:

> >carinate birds
>
> Birds with a keeled breastbone.

Alvarezsauria have keeled breastbones, but they're not Carinatae.
It is not clear if, when used as an adjective in that manner, whether the term refers to a taxonomic group or an anatomical feature.

There is also the issue of whether the Alvarezsauridae are birds.
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May the peace of God be with you.         sarima@ix.netcom.com