Ornithopoda
Ornithopods | |
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Mounted skeleton of Parasaurolophus cyrtocristatus, Field Museum of Natural History | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Clade: | Dinosauria |
Clade: | †Ornithischia |
Clade: | †Cerapoda |
Clade: | †Ornithopoda Marsh, 1881 |
Subgroups | |
Synonyms[1] | |
Ornithopoda (
History of research
In 1870,
Description
Ornithopoda means "bird feet", from the
The early ornithopods were only about 1 metre (3 feet) long, but probably very fast. They had a stiff tail, like the
Later ornithopods became larger, but never rivalled the incredible size of the long-necked, long-tailed
Classification
Historically, most indeterminate ornithischian
Taxonomy
Ornithopoda is usually given the rank of Suborder, within the order Ornithischia. While ranked taxonomy has largely fallen out of favour among dinosaur paleontologists, some researchers have continued to employ such a classification, though sources have differed on what its rank should be. Benton (2004) placed it as an infraorder within the suborder Cerapoda (originally named as an unranked clade), while others, such as Ibiricu et al. 2010, have retained it at its traditional ranking of suborder.[13]
Phylogeny
In 2021, Ornithopoda was given a formal definition under the
Clypeodonta |
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References
- ^ PMID 34966571.
- ^ "Ornithopoda". Merriam-Webster.com Dictionary.
- ^ "ornithopod". Lexico UK English Dictionary. Oxford University Press. Archived from the original on December 13, 2021.
- ^ "ornithopod". Merriam-Webster.com Dictionary.
- .
- doi:10.1144/gsl.jgs.1870.026.01-02.09 – via Wikisource.
- ^ S2CID 130836648.
- ^ Marsh, Othniel C. (1885). "Names of extinct reptiles" (PDF). American Journal of Science. 29: 169.
- ^ Colbert, Edwin H. (Edwin Harris); Knight, Charles Robert (1951). The dinosaur book: the ruling reptiles and their relatives. New York: McGraw-Hill. p. 152.
- .
- ^ Calvo, J. O.; Porfiri, J. D.; Novas, F. E. (2007). "Discovery of a new ornithopod dinosaur from the Portezuelo Formation (Upper Cretaceous), Neuquén, Patagonia, Argentina". Arquivos do Museu Nacional. 65 (4): 471–483.
- .
- S2CID 53407321.
- S2CID 90008574.
External links
- GEOL 104 dinosaurs: a Natural history, ornithopoda: beaks, bills & crests, by Thomas R. Holtz Jr.