Clade | |
Subclade |
Taxon | |
Taxon |
Abelisauroidea
|
Nominal Author | Bonaparte and Novas 1985 |
2nd Nominal Author | Bonaparte 1991 |
Taxon Status | ACTIVE |
Comments | Abelisauroidea was coined by Bonaparte (1991) and first defined as a stem-based taxon by Holtz (1994), who incorrectly cited Bonaparte (1991) for the definition. Rowe et al. (1997), Padian et al. (1999) and Tykoski and Rowe (2004) followed Holtz but used species as specifiers. Wilson et al. (2003) and Sereno et al. (2004), on the other hand, presented a node-based definition to better fit the taxon concept of Bonaparte (1991), who divided Abelisauroidea into two families, Noasauridae and Abelisauridae. A node-stem triplet anchored on Abelisauroidea faithfully preserves this dichotomy, which has been supported recently by more complete noasaurid material. By using the more inclusive stem-based definition alluded to above, Abelisauroidea subsumed Abelisauria which, in turn, included Abelisauridae (Tykoski and Rowe 2004:fig. 3.12)—an awkward taxonomy for the Linnean family-group. The active definition is that coined by Wilson et al. (2003). |
Potential Synonomy | Abelisauria, Ceratosauroidea, Neoceratosauria |
Active Phylogenetic Definition | |
Active Definition |
The least inclusive clade containing Carnotaurus sastrei Bonaparte 1985 and Noasaurus leali Bonaparte and Powell 1980.
|
Shorthand |
< Carnotaurus sastrei and Noasaurus leali. |
Definitional Author |
Wilson et al. 2003 |
Definition Status | TEXTUAL SUBSTITUTION |
Definition Type | NODE |
Node-Stem Triplet | NODE |
Other Triplet Taxa |
Abelisauridae, Noasauridae |
Specifiers | |
Specifier(s) A |
Carnotaurus sastrei |
Specifier(s) B | |
Specifier(s) C |
Noasaurus leali
|
Qualifiers | |
+Taxon | |
-Taxon | |
Datum | |
Taxonomic Content | |
Publication Year |
Unknown Unknown Unknown 2003 |
Inactive Taxon Status | |
Rejection Criteria | |
Critique | |
Definitional History #1 | |
Earliest Record | Abelisaurids and those members of the Ceratosaurus-Abelisauridae clade which shared a more recent common ancestry than with the North American genus [Ceratosaurus]. |
Latest Record | Holtz 1994:1105 |
Range (My) | |
Range (My) |
Abelisaurids, Ceratosaurus |
Range (My) |
Definitional History #2 | |
Earliest Record | Abelisauridae and all taxa closer to abelisaurids than to Ceratosaurus nasicornis. |
Latest Record | Rowe et al. 1997:109 |
Range (My) | |
Range (My) |
abelisaurids, Ceratosaurus nasicornis |
Range (My) |
Definitional History #3 | |
Earliest Record | All taxa closer to Carnotaurus than to Ceratosaurus. |
Latest Record | Padian et al. 1997:68A |
Range (My) | |
Range (My) |
Carnotaurus, Ceratosaurus |
Range (My) |
Definitional History #4 | |
Earliest Record | All neoceratosaurs closer to Carnotaurus than to Ceratosaurus. |
Latest Record | Padian 1999:70 |
Range (My) | |
Range (My) |
Carnotaurus, Ceratosaurus |
Range (My) |
Definitional History #5 | |
Earliest Record | The least inclusive clade containing Carnotaurus sastrei and Noasaurus leali. |
Latest Record | Wilson et al. 2003:30 |
Range (My) | |
Range (My) |
Carnotaurus sastrei, Noasaurus leali |
Range (My) |
Definitional History #6 | |
Earliest Record | All theropods closer to Carnotaurus sastrei than to Ceratosaurus nasicornis. |
Latest Record | Tykoski and Rowe 2004:64 |
Range (My) | |
Range (My) |
Carnotaurus sastrei, Ceratosaurus nasicornis |
Range (My) |
Definitional History #7 | |
Earliest Record | |
Latest Record | |
Range (My) | |
Range (My) | |
Range (My) |
Definitional History #8 | |
Earliest Record | |
Latest Record | |
Range (My) | |
Range (My) | |
Range (My) |
Definitional History #9 | |
Earliest Record | |
Latest Record | |
Range (My) | |
Range (My) | |
Range (My) |
Definitional History #10 | |
Earliest Record | |
Latest Record | |
Range (My) | |
Range (My) | |
Range (My) |