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Clade
Subclade

Taxon
Taxon
Huayangosauridae
Nominal Author
Dong et al. 1982
2nd Nominal Author
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
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Specifier(s) B
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Qualifiers
+Taxon
-Taxon
Datum
Taxonomic Content
Publication Year Unknown
Unknown
Unknown

Inactive Taxon Status
Rejection Criteria redundant
Critique
Galton and Upchurch (2004) elected to define this taxon, even though, based on their analysis, it is a monotypic taxon that includes only Huayangosaurus taibaii.  There is no purpose served by a taxon that is redundant with Huayangosaurus.
 

Definitional History #1
Earliest Record
All stegosaurs more closely related to Huayangosaurus than to Stegosaurus.
Latest Record
Galton and Upchurch 2004:358
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Huayangosaurus, Stegosaurus
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