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Clade
Subclade

Taxon
Taxon
Metatheropoda
Nominal Author
Ji and Ji 2001
2nd Nominal Author
Taxon Status INACTIVE
Comments
Potential Synonomy
Coelurosauria

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 no definition
Critique
A cladogram in a short paper on bird origins introduced, as labeled branch points, seven new higher taxa (Ji and Ji, 2001:fig. 1). None of these taxa ( Metatheropoda, Aptilonia, Eoptilonia, Chuniaoia, Dromavialae, Aerialae, Orthornithes) were given definitions or discussed further. Metatheropoda was placed at a node just above Coelurosauria; it is not at all clear how the two taxa differ.
 

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