Ceratosauria

[bervoets@nrc.nl (Fred Bervoets)]

Stan Friesen wrote:

>Well, there's Carnotaurus and Abelisaurus to name two.

Perhaps i'am wrongly informed but my information is diferent.

ABELISAURUS comahuensis Theropoda INCERTAE SEDIS "Carnosaurs"
Allen Formation, Rio Negro, Argentina
There is no indication of an enlarged lacrimal foramen characteristic of 
carnosaurs, although that region is incomplete. However, the similarity of  
the squamosal-quadrate structure to that of Carnotaurus sastrei suggests 
that these animals are closely  related (Bonaparte 1985; Bonaparte and Novas 
1985). Both A.comahuensis and C.Sastrei are thought to represent  a theropod 
lineage (Abelisauridae) evolving independently of the carnosaurs, perhaps 
from ceratosaur ancestors. Source: The Dinosauria by Weishampel, Dodson and 
Osmolska.

CARNOTAURUS sastrei Theropoda INCERTAE SEDIS "Carnosaurs"
Gorro Frigio Formation, Chubut, Argentina
Together with Abelisaurus comanhuensis, C.sastrei is included in the 
Abelisauridae by Bonaparte & Novas (1985), and the assignment is supported 
here. Source: The Dinosauria by Weishampel, Dodson and Osmolska

>Is Noasaurus from the Cretaceous?  I seem to remember so.
NOASAURUS leali Provisionally Theropoda INCERTAE SEDIS "Coelurosaurs"
Lecho Formation El Brete, Salta Argentina ?Campanian Maastrichtian
 The ventral margin of the fossa is marked by a sharp ventral edge, which as 
in some material referred to "Marshosaurus" Madsen,1976, compares quite 
closely with that of dromaeosaurids.  The material is too fragmentary to be 
of much value in the elucidation of either its biology or its relationships 
even though it is a useful geog raphic record of small theropods from South 
America in the Late Cretaceous. So far as our current understanding of Late 
Cretaceous theropods goes, the group that may by closest to this  in general 
form is the troodontids (see Barsbold & Osmolska), but the low density of 
teeth in the maxilla and the very unusual form of the ungual phalanx make 
this assignment contentious. The creation of a new family of 
theropods(oasauridae, Bonaparte & Powell,1980) on the basis of the imperfect 
specimen seems inappropriat at present. Source: The Dinosauria by 
Weishampel, Dodson and Osmolska

Did i mis something? Are these animals now placed in another family?

With regards
Fred Bervoets