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Clade
Subclade Archosauria: Avemetatarsalia to Neornithes 

Taxon Feedback
Taxon Carnotaurinae 
Nominal Author Sereno 1998 
2° Nominal Author  
Taxon Status active
inactive
Comments The active defintition is a textual variant of Sereno et al. (2004), which was based on a stem-based definition first proposed by Sereno (1998). 
Potential Synonomy  

Active Phylogenetic Definition Feedback
Active Definition The most inclusive clade containing Carnotaurus sastrei Bonaparte 1985 but not Abelisaurus comahuensis Bonaparte and Novas 1985. 
Shorthand > Carnotaurus sastrei but not Abelisaurus comahuensis
Definitional Author Sereno et al. 2004 
Definition Status original
textual substitution
first-order revision
second-order revision
Definition Type node
stem
Node-Stem Triplet yes
no
Other Triplet Taxa  
Specifiers
Specifier A Carnotaurus sastrei 
Specifier(s) B  
Specifier(s) C Abelisaurus comahuensis 
Qualifiers
+Taxon  
-Taxon  
Datum  
Taxonomic Content stem (entirely extinct)
crown (extant-bounded)
mixed (extant/extinct-bounded)
Publication Year 1998 

Inactive Taxon Status Feedback
Rejection Criteria junior synonym
historically polyphyletic
incomplete definition
no definition
apomorphy-based
redundant
other 
Critique  
 

Current Age Range Feedback
Earliest Record Campanian (84 Ma) 
Latest Record Maastrichtian (66 Ma) 
Range (My) 18 
Basis for Range The horned carnotaurines are known principally from Campanian or Maastrichtian age rocks on India, Madagascar, and Argentina (Tykoski and Rowe 2004). Dates are rounded to the nearest million, the earliest from the beginning of the stage and the latest from the end of the stage (Gradstein et al. 2004). 

Definitional History #1
Definition 1 All abellisaurids closer to Carnotaurus than to Abelisaurus
Author Sereno 1998:64 
Type node  stem 
Specifiers Carnotaurus, Abelisaurus 
Qualifiers  

Definitional History #2
Definition 2 The most inclusive clade containing Carnotaurus sastrei but not Abelisaurus comahuensis
Author Sereno et al. 2004:supplemental data on web 
Type node  stem 
Specifiers Carnotaurus sastrei, Abelisaurus comahuensis 
Qualifiers