Re: New alvarezsaurid

[Dinogeorge <Dinogeorge@aol.com>]

In a message dated 98-03-28 22:28:05 EST, m_troutman@hotmail.com writes:

<< I agree with your statement, but there are no cases in Aves where a 
 species or family has secondarily lost many, many, many, many, many, 
 many, deived characteristics. If you can give me a proven case I will 
 stand corrected.  >>

How many is many, many, many, many, many, many? Most modern birds have lost
(or secondarily changed) enough derived characters that it has become
extremely difficult to determine their suprafamilial relationships from
morphology. The avian DNA cladogram is quite a bit different from the
morphological avian cladogram.