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Sorry, I'm *really* speaking of
Patago*pteryx*. Please have a look at
Classifications|Avialae|Ornithurae|Patagopteryx in http://dinosauricon.com. Anyway, thank
you for information about Ornitholestes and
Megaraptor (and I simply forgot Noasaurus, you know, so
sickle claws have evolved more than once).
-----Ursprüngliche Nachricht-----
Von: "Jaime A. Headden" <qilongia@yahoo.com>
An: <dinosaur@usc.edu>
Gesendet: Dienstag, 12. September 2000
04:15
Betreff: Re: Sickle-Clawed birds > > <There is a reconstruction of Patagopteryx in The > Dinosauricon showing it as a basal alvarezsaur. > Judging by how little is known of the skeleton (e. g. > the tail is completely unknown, the arms "end" just > below the elbows), and by the fact that it was > described before Mononykus, this is possible.> > > It's not *Patagopteryx*, a bird. It's *Patagonykus*, > which is an alvarezsaur originally described in 1996, > then fully described in 1997, both by Novas. This form > has partial forelimbs including the forearm and manal > elements, and they are surprisingly large for an > alvarezsaur compared to *Mononykus* or *Shuvuuia.* > Even *Alvarezsaurus* apparently has smaller arms > relatively, though I'd have to check. The > reconstruction on Mike Keesey's Dinosauricon had > better have the forelimbs, or I'm going to be very > annoyed.... > |