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Clade
Subclade

Taxon
Taxon
Lambeosauria
Nominal Author
Horner 1990
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
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
Horner (1990) proposed a diphyletic origin for hadrosaurids, with Lambeosauria comprising a clade including Ouranosaurus nigeriensis and Lambeosauridae. No one has arrived at the same conclusion, and no phylogenetic efinition has been proposed for this taxon
 

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