[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Subject Index][Author Index]

Re: Doesn't George have a point?

Does someone have a reference for an online cladistic diagram that shows the
lineage for both of these models?


"Jerry D. Harris" wrote:

> >What I'm asking is really simple.  Is it in line with
> >prevailing standards of scientific analysis of
> >prehistoric life to hypothesize that birds are
> >dinosaur descendants when the dinosaurs the birds are
> >said to have descended from come after the first birds
> >in the known fossil record
>    OK, two things here:
> (1) Who said dromaeosaurids were avian _ancestors_?  Last I understood, they
> were considered the _sister_group_, but not actual ancestors. Thus, the
> common ancestor of both birds and dromaeosaurids must have been present
> prior to _Archaeopteryx_; _not_ necessarily that dromaeosaurids go back that
> far (although this brings up when one would call something stemming off from
> that ancestor a "dromaeosaurid"...)

AOL IM Pager - DinoEditor

When you think of dinosaurs, think of DIG!
The Dinosaur Interplanetary Gazette - 245 Million Years of News at Dinosaur
http://www.dinosaur.org  mailto:Editor@dinosaur.org
Recommended by The National Education Association,Encyclopedia Britannica
Internet Guide, Yahoo and Yahooligans Choice, Netscape Site of the Day. Member
of The Paleo Ring

Bear Bob's Story - Where the first teddy bear really came from....
A prequel to Teefr by Edward Summer
http://www.dinosaur.org/teefr/bearbob.htm  mailto:Teefr@Juno.Com
Book Two of the Teddy Quartet, A Yahooligans choice.

Laser Publications, Planetarium Station, Box 502-DIG, NY, NY 10024-0502