Clade | |
Subclade |
Taxon | |
Taxon |
Dinosauromorpha
|
Nominal Author | Benton 1985 |
2nd Nominal Author | |
Taxon Status | ACTIVE |
Comments | Sereno (1991) accidentally provided both a node- and a stem-based definition for Dinosauromorpha. The stem-based definition, which has been subsequently cited by Arcucci (1997), is regarded here as the more useful and is revised accordingly. The active definition is a first-order revision of Sereno’s original stem-based definition that uses species as specifiers. It also includes two additional external specifiers to cover all of the most probable resolutions at the base of Archosauria, while maintaining the content of Dinosauromorpha as it is currently understood. Should pterosaurs be positioned outside Archosauria, Dinosauromorpha would have precedence over Avemetatarsalia, a stem-based taxon that differs only by the inclusion of pterosaurs (see Avemetatarsalia for more discussion). |
Potential Synonomy |
Active Phylogenetic Definition | |
Active Definition |
The most inclusive clade containing Passer domesticus (Linnaeus 1758) but not Pterodactylus antiquus (Sommerring 1812), Ornithosuchus woodwardi Newton 1894, Crocodylus niloticus (Laurenti 1768).
|
Shorthand |
> Passer domesticus but not Pterodactylus antiquus, Ornithosuchus woodwardi, Crocodylus niloticus. |
Definitional Author |
Sereno 2005 |
Definition Status | checked |
Definition Type | STEM |
Node-Stem Triplet | NO |
Other Triplet Taxa | |
Specifiers | |
Specifier(s) A |
Passer domesticus |
Specifier(s) B | |
Specifier(s) C |
Pterodactylus antiquus, Ornithosuchus woodwardi, Crocdylus niloticus
|
Qualifiers | |
+Taxon | |
-Taxon | |
Datum | |
Taxonomic Content | |
Publication Year |
Unknown Unknown Unknown 1991 |
Inactive Taxon Status | |
Rejection Criteria | |
Critique | |
Definitional History #1 | |
Earliest Record | Lagerpeton chanarensis, Lagosuchus talampayensis, Pseudolagosuchus major, Dinosauria (inc. Aves), and all descendants of their common ancestor. |
Latest Record | Sereno 1991:23 |
Range (My) | |
Range (My) |
Lagerpeton chanarensis, Lagosuchus talampayensis, Pseudolagosuchus major, Dinosauria |
Range (My) |
Definitional History #2 | |
Earliest Record | Ornithodirans more closely related to the dinosaur-avian clade than to pterosaurs. |
Latest Record | Sereno 1991:23 |
Range (My) | |
Range (My) |
pterosaurs, dinosaur-avian clade |
Range (My) |
Definitional History #3 | |
Earliest Record | The clade comprising Neornithes and all ornithodirans closer to Neornithes than to Pterosauria. |
Latest Record | Benton 2004:15 |
Range (My) | |
Range (My) |
Neornithes, Pterosauria |
Range (My) |
Definitional History #4 | |
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Latest Record | |
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Definitional History #5 | |
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Latest Record | |
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Definitional History #6 | |
Earliest Record | |
Latest Record | |
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Definitional History #7 | |
Earliest Record | |
Latest Record | |
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Range (My) |
Definitional History #8 | |
Earliest Record | |
Latest Record | |
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Definitional History #9 | |
Earliest Record | |
Latest Record | |
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Definitional History #10 | |
Earliest Record | |
Latest Record | |
Range (My) | |
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