Hadrosauroidea
Hadrosauroidea is a clade or superfamily of ornithischian dinosaurs that includes the "duck-billed" dinosaurs, or hadrosaurids, and all dinosaurs more closely related to them than to Iguanodon. Their remains have been recovered in Asia, Europe, Africa and the Americas. Many primitive hadrosauroids, such as the Asian Probactrosaurus and Altirhinus, have traditionally been included in a paraphyletic (unnatural grouping) "Iguanodontidae". With cladistic analysis, the traditional Iguanodontidae has been largely disbanded, and probably includes only Iguanodon and perhaps its closest relatives.
| Hadrosauroids Temporal range: Early-Late Cretaceous, | |
|---|---|
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| Probactrosaurus | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Clade: | Dinosauria |
| Clade: | †Ornithischia |
| Clade: | †Ornithopoda |
| Clade: | †Hadrosauriformes |
| Superfamily: | †Hadrosauroidea Cope, 1869 |
| Type species | |
| †Hadrosaurus foulkii Leidy, 1858 | |
| Subgroups | |
| Synonyms | |
Classification
The cladogram below follows an analysis by Andrew McDonald, 2012, and shows the position of Hadrosauroidea within Styracosterna.[1]
| Styracosterna |
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The cladogram below follows an analysis by Wu Wenhao and Pascal Godefroit (2012).[2]
| Hadrosauriformes |
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Cladogram after Prieto-Marquez and Norell (2010).[3]
| Hadrosauroidea |
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A phylogenetic analysis performed by Ramírez-Velasco et al. (2012) found a large polytomy between all hadrosauroids that are more derived than Probactrosaurus but less derived than Hadrosauridae. The exclusion of Claosaurus, Jeyawati, Levnesovia, Nanyangosaurus, Shuangmiaosaurus and Telmatosaurus from the analysis resulted in a more resolved topology.[4]
| Hadrosauroidea |
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See also
References
- McDonald, A. T. (2012). Farke, Andrew A (ed.). "Phylogeny of Basal Iguanodonts (Dinosauria: Ornithischia): An Update". PLOS ONE. 7 (5): e36745. doi:10.1371/journal.pone.0036745. PMC 3358318. PMID 22629328.
- Wu Wenhao; Pascal Godefroit (2012). "Anatomy and Relationships of Bolong yixianensis, an Early Cretaceous Iguanodontoid Dinosaur from Western Liaoning, China". In Godefroit, P. (ed.). Bernissart Dinosaurs and Early Cretaceous Terrestrial Ecosystems. Indiana University Press. pp. 293–333.
- Albert Prieto-Marquez & Mark A. Norell (2010). "Anatomy and Relationships of Gilmoreosaurus mongoliensis (Dinosauria: Hadrosauroidea) from the Late Cretaceous of Central Asia" (PDF). American Museum Novitates (3694): 1–52. doi:10.1206/3694.2. ISSN 0003-0082. S2CID 56372891.
- Angel Alejandro Ramírez-Velasco; Mouloud Benammi; Albert Prieto-Márquez; Jesús Alvarado Ortega; René Hernández-Rivera (2012). "Huehuecanauhtlus tiquichensis, a new hadrosauroid dinosaur (Ornithischia: Ornithopoda) from the Santonian (Late Cretaceous) of Michoacán, Mexico". Canadian Journal of Earth Sciences. 49 (2): 379–395. doi:10.1139/e11-062.
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