Clade | |
Subclade |
Taxon | |
Taxon |
Heterodontosauria
|
Nominal Author | Cooper 1985 |
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 | |
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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 redundant |
Critique | Heterodontosauria was coined by Cooper (1985) to include Pisanosauridae and Heterodonotsauridae. As some have considered Pisanosaurus a heteroddontosaurid (e.g., Butler 2005), the taxon may redundant with Heterodontosauridae. Sereno (1986) adopted Heterodonotsauria, attempting to create etymologically parallel clades within Ornithopoda (Hetrodontosauria, Hypsilophodontia, and Iguanodontia). This has not been widely adopted and is unnecessarily redundant for taxa that have limited diversity, such as heterodontoaurids. |
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