Clade | |
Subclade |
Taxon | |
Taxon |
Pterosauromorpha
|
Nominal Author | Padian 1997 |
2nd Nominal Author | |
Taxon Status | ACTIVE |
Comments | Padian (1997:617) named and defined Pterosauromorpha as “Pterosauria and all ornithodiran archosaurs closer to them than to dinosaurs.” This is a useful stem-based taxon that provides a catch-all for taxa believed to be immediate outgroups for pterosaurs without forcing new and unusual forms into Pterosauria. The active definition is a first-order revision that uses species as specifiers. The venerable and well known species Pterodactylus antiquus (Sommerring 1812) serves as an internal specifier to anchor the definition. Similarly Passer domesticus is included as an external specifier that will work effectively to control unwanted inclusion of ther taxa (when pterosaurs are regarded as archosaurs).
|
Potential Synonomy |
Active Phylogenetic Definition | |
Active Definition |
The most inclusive clade containing Pterodactylus antiquus (Sommerring 1812) but not Passer domesticus (Linnaeus 1758).
|
Shorthand |
> Pterodactylus antiquus but not Passer domesticus. |
Definitional Author |
Sereno 2005 |
Definition Status | checked |
Definition Type | STEM |
Node-Stem Triplet | NO |
Other Triplet Taxa | |
Specifiers | |
Specifier(s) A |
Pterodactylus antiquus |
Specifier(s) B | |
Specifier(s) C |
Passer domesticus
|
Qualifiers | |
+Taxon | |
-Taxon | |
Datum | |
Taxonomic Content | |
Publication Year |
Unknown Unknown Unknown 1997 |
Inactive Taxon Status | |
Rejection Criteria | |
Critique | |
Definitional History #1 | |
Earliest Record | Pterosauria and all ornithodiran archosaurs closer to them than to dinosaurs. |
Latest Record | Padian 1997:617 |
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Pterosauria, dinosaurs |
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