| Revision as of 14:49, 10 December 2006 editDinoguy2 (talk | contribs)Autopatrolled, Extended confirmed users39,966 edits range to recent--it's a clade only, shouldn't treat as paraphyletic← Previous edit | Revision as of 14:59, 10 December 2006 edit undoDinoguy2 (talk | contribs)Autopatrolled, Extended confirmed users39,966 editsmNo edit summaryNext edit → | ||
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| | unranked_ordo = ] | | unranked_ordo = ] | ||
| | unranked_familia = '''Ornithodira''' | | unranked_familia = '''Ornithodira''' | ||
| | unranked_familia_authority = ], 1986 | | unranked_familia_authority = ], 1986 | ||
| | subdivision_ranks = |
| subdivision_ranks = Clades | ||
| | subdivision = | | subdivision = | ||
| * |
* '''Dinosauromorpha''' | ||
| * |
* '''Pterosauromorpha''' | ||
| }} | }} | ||
| '''Ornithodira''' is a division of the ] (and perhaps ]ia) ]. Members of this clade were characterized by an upright ] and an S-curved neck, hence the name "Ornithodira" ("bird neck"). It contains two ]s, ] and ]. | '''Ornithodira''' is a division of the ] (and perhaps ]ia) ]. Members of this clade were characterized by an upright ] and an S-curved neck, hence the name "Ornithodira" ("bird neck"). It contains two sub-]s, ] and ]. | ||
| Dinosauromorpha contains the ]s, and their famous descendants, the ]s, some of which (specifically ]) are considered by most modern scientists to be ancestors of modern ]s. | Dinosauromorpha contains the ]s, and their famous descendants, the ]s, some of which (specifically ]) are considered by most modern scientists to be ancestors of modern ]s. | ||
| Line 26: | Line 26: | ||
| ''']''' | ''']''' | ||
| * '''ORNITHODIRA''' | * '''ORNITHODIRA''' | ||
| ** |
** '''Pterosauromorpha''' | ||
| *** '']'' | *** '']'' | ||
| *** |
*** '']'' | ||
| *** '''Order ] | *** '''Order ] | ||
| ** '''Dinosauromorpha''' | ** '''Dinosauromorpha''' | ||
Revision as of 14:59, 10 December 2006
| Ornithodirans Temporal range: Middle Triassic - Recent | |
|---|---|
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Sauropsida |
| Subclass: | Diapsida |
| Infraclass: | Archosauromorpha |
| (unranked): | Archosauria |
| (unranked): | Ornithodira Gauthier, 1986 |
| Clades | |
| |
Ornithodira is a division of the Archosauromorpha (and perhaps Archosauria) clade. Members of this clade were characterized by an upright gait and an S-curved neck, hence the name "Ornithodira" ("bird neck"). It contains two sub-clades, Dinosauromorpha and Pterosauromorpha.
Dinosauromorpha contains the lagosuchians, and their famous descendants, the dinosaurs, some of which (specifically theropods) are considered by most modern scientists to be ancestors of modern birds.
Pterosauromorpha contains Pterosauria, which are the famous flying reptiles, and perhaps the first vertebrates capable of true flight. Most researchers think pterosaurians had neither an S-curved neck, nor an upright gait. However, the Ornithodira clade is still valid because it is defined as the last common ancestor of the dinosaurs and the pterosaurs, and all its descendants. Exactly which species are included in this definition is still not very clear.
Classification
- ORNITHODIRA
- Pterosauromorpha
- Dinosauromorpha
- Lagerpeton
- Dinosauriformes
- ?Saltopus
- Lagosuchus
- Marasuchus
- Lewisuchus
- Pseudolagosuchus
- Eucoelophysis
- Silesaurus
- Superorder Dinosauria
- Order Ornithischia
- Order Saurischia
- Class Aves