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Clade
Subclade

Taxon
Taxon
Ceratosauroidea
Nominal Author
Marsh 1884
2nd Nominal Author
Bonaparte et al. 1990
Taxon Status INACTIVE
Comments
Potential Synonomy

Active Phylogenetic Definition
Active Definition
Shorthand
Definitional Author
Definition Status Unknown
Definition Type Unknown
Node-Stem Triplet Unknown
Other Triplet Taxa
Specifiers
Specifier(s) A
Specifier(s) B
Specifier(s) C
Qualifiers
+Taxon
-Taxon
Datum
Taxonomic Content
Publication Year Unknown
Unknown
Unknown

Inactive Taxon Status
Rejection Criteria other
Critique
Bonaparte et al. (1990) were the first to use the superfamily based on Marsh’s family Ceratosauridae, but they did not compose a phylogenetic definition. Sereno (1998) provided a stem-based definition. Given current consensus regarding the closer relationship of Ceratosaurus and abelisauroid taxa to Tetanurae than Coelophysoidea, this taxon (and Neoceratosauria) have little use. Their original definitions would identify a clade composing Ceratosaurus and all theropods more advanced that Coelophysoidea— a clade with dramatically different taxonomic content from its original conception.
 

Definitional History #1
Earliest Record
All ceratosaurs closer to Carnotaurus than to Coelophysis.
Latest Record
Sereno 1998:64
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Carnotaurus, Coelophysis
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