-----Original
Message----- 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). The type specimen of
Patagopteryx doesn’t have toes (only a few phalanges) preserved. So how can it
have a sickle claw? There is no indication for it. Tracy |