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

Re: Carpometacarpus

On Tue, 30 Mar 1999 21:41:42 -0500 "Patrick Norton"
<ptnorton@email.msn.com> writes:

> And since _Mononykus_ (a member of the 
>Alvarezsauridae) has a carpometacarpus (at least it looks like one to
me), is it >reasonable 
>consider the carpometacarpus as a basal character for the Metornithes? 
>not, what are the members of Aves outside Metornithes that show fusion 
>bones in the wrist or hand?

*Avimimus*, while not usually considered to be a member of Aves, is
reported to have fusion of the wrist and hand bones.  In *The
Dinosauria*, there is on page 285 (paperback) a drawing of the relevant
elements, and the condition is described as a carpometacarpus.  So, this
character may go back farther than Aves, if this interpretation is
correct (and if *Avimimus* isn't a secondarily-flightless member of
Aves). -*Thescelosaurus*

You don't need to buy Internet access to use free Internet e-mail.
Get completely free e-mail from Juno at http://www.juno.com/getjuno.html
or call Juno at (800) 654-JUNO [654-5866]