Re: troodontids and tympanic recesses

[Phil Bigelow <bigelowp@juno.com>]

"Mickey Mortimer" <Mickey_Mortimer111@msn.com> writes:

Part of his character matrix sez:
> Caudal typanic recess opens into the columnar
> recess (Chiappe et al., 1996):

> 1  Troodon (Currie, 1985; 0 in Norell et al., 2001)

Assuming the standard 1=derived and 0=primitive, why do Currie and Norell
et al. disagree on this character state?


<pb>
--









________________________________________________________________
The best thing to hit the Internet in years - Juno SpeedBand!
Surf the Web up to FIVE TIMES FASTER!
Only $14.95/ month - visit www.juno.com to sign up today!