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#REDIRECT ]
{{Taxobox

| color = pink
{{Redirect category shell|
| name = Ornithodirans
{{R animal with possibilities}}
| fossil_range = ] - Recent
{{R from subtopic}}
| regnum = ]ia
{{R with history}}
| phylum = ]
| classis = ]
| subclassis = ]
| infraclassis = ]
| unranked_ordo = ]
| unranked_familia = '''Ornithodira'''
| unranked_familia_authority = ], 1986
| subdivision_ranks = Clades
| subdivision =
See text
}} }}


⚫ ]
'''Ornithodira''' is a ] within the larger group ]ia. Members of this clade are 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.

Pterosauromorpha contains ]ia, which are the famous flying reptiles, and perhaps the first ]s capable of ]. Most researchers think pterosaurians had neither an S-curved neck, nor an upright ]. 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.

==Phylogeny==

'''ORNITHODIRA'''
|--'''Pterosauromorpha'''
| |--'']''
| |--'']''
| `]
`--''']'''
|--'']''
`--'''Dinosauriformes'''
|-?'']''
|--'']''
|--'']''
|--'']''
|--'']''
|--'']''
|--'']''
|--'']''
`--''']'''
|--''']'''
`--''']'''
`--''']'''

⚫ ]

]
]
]
]

Latest revision as of 22:06, 19 April 2024

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