R: Dinosaur Genera List corrections #98

["Alessandro Marisa" <amaris@tin.it>]

-----Messaggio originale-----
Da: Dinogeorge@aol.com <Dinogeorge@aol.com>
A: dinosaur@usc.edu <dinosaur@usc.edu>
Cc: tlford@ix.netcom.com <tlford@ix.netcom.com>; jmcvey@cts.com
<jmcvey@cts.com>; Dinogeorge@aol.com <Dinogeorge@aol.com>; Tyrantrex@aol.com
<Tyrantrex@aol.com>; bardet@cimrs1.mnhn.fr <bardet@cimrs1.mnhn.fr>;
bervoets@nrc.nl <bervoets@nrc.nl>
Data: mercoledì 4 novembre 1998 2.10
Oggetto: Dinosaur Genera List corrections #98

>The paper also tentatively recognizes two
>spinosaurid groups, with longirostrine and brevirostrine muzzles. The
>longirostrine group have relatively elongate premaxillae with no narial
crest,
>the brevirostrine group have short, rounded premaxillae drawn up into a
narial
>crest. _Cristatusaurus_ belongs to the latter group. Both groups have seven
>premaxillary teeth, a diagnostic spinosaurid character.

Brifingly the two ipothetical groups of Spinosauridae includes:

Brevirostrine - Baryonyx
                        - Angaturama
                        - Irritator
                        - Cristatusaurus

Longirostrine - Spinosaurus
                         - Sigilmassasaurus

and Siamosaurus as Spinosauridae [incertis sedae]

P.S.
I don't remember when I have read that Asiamerikana probably is a
Spinosauridae is right this?

By and sorry for the English
Alessandro Marisa
Via A. Grandi n°18 ROVERETO (TN) ITALY
Tel: 039-0464-434658 Email: amaris@tin.it