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Clade
Subclade

Taxon
Taxon
Hadrosaurinae
Nominal Author
Cope 1869
2nd Nominal Author
Lambe 1918
Taxon Status ACTIVE
Comments
The definition is a first-order revision of that given by Sereno (1998) that adds the type genus as a positive taxon qualifier.
Potential Synonomy

Active Phylogenetic Definition
Active Definition
The most inclusive taxon containing Saurolophus osborni Brown 1912 and Parasaurolophus walkeri Parks 1922 and including Hadrosaurus foulkii Leidy 1858.
Shorthand
> Saurolophus osborni and Parasaurolophus walkeri + Hadrosaurus foulkii.
Definitional Author
Sereno 1998
Definition Status checked
Definition Type STEM
Node-Stem Triplet STEM
Other Triplet Taxa
Hadrosauridae, Lambeosaurinae
Specifiers
Specifier(s) A
Saurolophus osborni
Specifier(s) B
Specifier(s) C
Parasaurolophus walkeri
Qualifiers
+Taxon
-Taxon
Datum
Taxonomic Content
Publication Year Unknown
Unknown
Unknown
1998

Inactive Taxon Status
Rejection Criteria
Critique
 

Definitional History #1
Earliest Record
All hadrosaurids closer to Saurolophus than to Parasaurolophus.
Latest Record
Sereno 1998:62
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Saurolophus, Parasaurolophus
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