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Clade
Subclade

Taxon
Taxon
Hadrosauroidea
Nominal Author
Cope 1869
2nd Nominal Author
Huene 1952
Taxon Status ACTIVE
Comments
Previosuly this taxon was attributed to Sereno (1986). Huene was first to use the superfamily and is the appropriate secondary author.
Potential Synonomy

Active Phylogenetic Definition
Active Definition
The most inclusive taxon containing Parasaurolophus walkeri Parks 1922 but not Iguanodon bernissartensis Boulenger 1881.
Shorthand
> Parasaurolophus walkeri but not Iguanodon bernissartensis.
Definitional Author
Sereno 2005
Definition Status checked
Definition Type STEM
Node-Stem Triplet NO
Other Triplet Taxa
Specifiers
Specifier(s) A
Parasaurolophus walkeri
Specifier(s) B
Specifier(s) C
Iguanodon bernissartensis
Qualifiers
+Taxon
-Taxon
Datum
Taxonomic Content
Publication Year Unknown
Unknown
Unknown
1998

Inactive Taxon Status
Rejection Criteria
Critique
 

Definitional History #1
Earliest Record
All hadrosauriforms closer to Parasaurolophus than to Iguanodon.
Latest Record
Sereno 1998:62
Range (My)
Range (My)
Iguanodon, Parasaurolophus
Range (My)

Definitional History #2
Earliest Record
Those dinosaurs that are more closely related to Hadrosauridae than to Iguanodon.
Latest Record
You et al. 2003:
Range (My)
Range (My)
Iguanodon, Hadrosauridae
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Definitional History #9
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Definitional History #10
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