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Clade
Subclade

Taxon
Taxon
Coelurosauria
Nominal Author
Huene 1914
2nd Nominal Author
Taxon Status ACTIVE
Comments

Gauthier (1986) first proposed a definition for Coelurosauria, a taxon that had previously been used for all small-bodied theropods, using Carnosauria and birds as specifiers. Holtz (1994) was first to suggest replacing Carnosauria with Allosaurus, and did so formally two years later (Holtz 1996). Before that definition appeared, an abstract was published with a partial definition for Coelurosauria along those lines (Holtz and Padian 1995:35A): “those closer to birds than to Allosaurus”). Sereno (1998) used Allosaurus and Neornithes, following Hotz (1996). Padian et al. (1999:73) returned to using Carnosauria rather than Allosaurus as a specifier, replacing “birds” with Neornithes and attributing the definition to Gauthier (1986).

The active definition is a first-order revision of Holtz (1996) that uses species instead of higher taxa and also includes a few additional external specifiers within the immediate outgroup (Allosauroidea), in the event that Allosauroidea so conceived is not monophyletic but rather has one or more members that are closer to Coelurosauria than to Allosaurus fragilis.

Potential Synonomy

Active Phylogenetic Definition
Active Definition
The most inclusive clade containing Passer domesticus (Linnaeus 1758) but not Allosaurus fragilis Marsh 1877, Sinraptor dongi Currie and Zhao 1993, Carcharodontosaurus saharicus (Depéret and Savornin 1927).
Shorthand
> Passer domesticus but not Allosaurus fragilis, Sinraptor dongi, Carcharodontosaurus saharicus.
Definitional Author
Sereno 2005
Definition Status checked
Definition Type STEM
Node-Stem Triplet STEM
Other Triplet Taxa
Neotetanurae, Allosauroidea
Specifiers
Specifier(s) A
Passer domesticus
Specifier(s) B
Specifier(s) C
Allosaurus fragilis, Sinraptor dongi, Carcharodontosaurus saharicus
Qualifiers
+Taxon
-Taxon
Datum
Taxonomic Content
Publication Year Unknown
Unknown
Unknown
1986

Inactive Taxon Status
Rejection Criteria
Critique
 

Definitional History #1
Earliest Record
Birds and all other theropods that are closer to birds than they are to Carnosauria.
Latest Record
Gauthier 1986:26
Range (My)
Range (My)
Carnosauria, birds
Range (My)

Definitional History #2
Earliest Record
Birds and all theropods sharing a more recent common ancestor with birds than with Allosaurus.
Latest Record
Holtz 1996:536
Range (My)
Range (My)
Allosaurus, birds
Range (My)

Definitional History #3
Earliest Record
All neotetanurines closer to Neornithes than to Allosaurus.
Latest Record
Sereno 1998:64
Range (My)
Range (My)
Allosaurus, Neornithes
Range (My)

Definitional History #4
Earliest Record
Neornithes and all tetanurans closer to Neornithes than to Carnosauria.
Latest Record
Padian et al. 1999:73
Range (My)
Range (My)
Carnosauria, Neornithes
Range (My)

Definitional History #5
Earliest Record
Passer domesticus and all taxa sharing a more recent common ancestor with it than with Allosaurus fragilis.
Latest Record
Holtz et al. 2004:104
Range (My)
Range (My)
Passer domesticus, Allosaurus fragilis
Range (My)

Definitional History #6
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Definitional History #7
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Definitional History #8
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Definitional History #9
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Definitional History #10
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