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Clade
Subclade

Taxon
Taxon
Coelophysoidea
Nominal Author
Nopcsa 1928
2nd Nominal Author
Holtz 1994
Taxon Status ACTIVE
Comments

Nopsca (1928) named the family group by coining Coelophysinae; Holtz (1994) was first to use the superfamily; Sereno (1998) was first to provide a phylogenetic definition, using Coelophysis and Carnotaurus as specifiers in a stem-based definition. Padian et al. (1999) and Tykoski and Rowe (2004) used Ceratosaurus rather than Carnotaurus as the external specifier.

The active definition is a first-order revision of Sereno (1998) that uses species as specifiers. To stabilize the content of Coelophysoidea (no matter where Ceratosauria [sensu stricto] is placed), this definition uses the highly nested Carnotarus sastrei, Ceratosaurus nasicornis (eponymous for Ceratosauria), and Passer domesticus as external specifiers.

Potential Synonomy

Active Phylogenetic Definition
Active Definition
The most inclusive clade containing Coelophysis bauri (Cope 1889) but not Carnotaurus sastrei Bonaparte 1985, Ceratosaurus nasicornis Marsh 1884, Passer domesticus (Linnaeus 1758).
Shorthand
> Coelophysis bauri but not Carnotaurus sastrei, Ceratosaurus nasicornis, Passer domesticus.
Definitional Author
Sereno 2005
Definition Status checked
Definition Type STEM
Node-Stem Triplet NO
Other Triplet Taxa
Specifiers
Specifier(s) A
Coelophysis bauri
Specifier(s) B
Specifier(s) C
Carnotaurus sastrei, Ceratosaurus nasicornis, Passer domesticus
Qualifiers
+Taxon
-Taxon
Datum
Taxonomic Content
Publication Year Unknown
Unknown
Unknown
1998

Inactive Taxon Status
Rejection Criteria
Critique
 

Definitional History #1
Earliest Record
All ceratosaurs closer to Coelophysis than to Carnotaurus.
Latest Record
Sereno 1998:64
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Coelophysis, Ceratosaurus
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Definitional History #2
Earliest Record
All ceratosaurs closer to Coelophysis than to Ceratosaurus.
Latest Record
Padian et al. 1999:70
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