Marginocephalia: Difference between revisions
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{{Automatic taxobox |
{{Automatic taxobox |
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| name = Marginocephalians |
| name = Marginocephalians |
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| fossil_range = [[Late Jurassic]]–[[Late Cretaceous]], {{Fossil range| |
| fossil_range = [[Late Jurassic]]–[[Late Cretaceous]], {{Fossil range|158|66}} |
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| image = Triceratops 2.jpg |
| image = Triceratops 2.jpg |
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| image_caption = Skull of ''[[Triceratops horridus]]'' |
| image_caption = Skull of ''[[Triceratops horridus]]'' |
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Revision as of 12:22, 25 March 2016
| Marginocephalians Temporal range: Late Jurassic–Late Cretaceous,
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| Skull of Triceratops horridus | |
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| Skull of Stygimoloch spinifer | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Clade: | Dinosauria |
| Clade: | †Ornithischia |
| Clade: | †Neornithischia |
| Clade: | †Cerapoda |
| Clade: | †Marginocephalia Sereno, 1986 |
| Subgroups | |
Marginocephalia ("fringed heads") is a clade of ornithischian dinosaurs that includes the thick-skulled pachycephalosaurids, and horned ceratopsians. They were all herbivores, walking on two or four legs, and are characterized by a bony ridge or frill at the back of the skull. The clade evolved in the Jurassic period, and became common in the Upper Cretaceous.
Classification
The cladogram below follows a 2009 analysis by Zheng and colleagues.[1]
| Marginocephalia | |
Cladogram after Butler et al., 2011.[2]
| Marginocephalia | |
References
- ^ Zheng, Xiao-Ting; You, Hai-Lu; Xu, Xing; Dong, Zhi-Ming (19 March 2009). "An Early Cretaceous heterodontosaurid dinosaur with filamentous integumentary structures". Nature. 458 (7236): 333–336. Bibcode:2009Natur.458..333Z. doi:10.1038/nature07856. PMID 19295609.
- ^ Richard J. Butler, Jin Liyong, Chen Jun, Pascal Godefroit (2011). "The postcranial osteology and phylogenetic position of the small ornithischian dinosaur Changchunsaurus parvus from the Quantou Formation (Cretaceous: Aptian–Cenomanian) of Jilin Province, north-eastern China". Palaeontology. 54 (3): 667–683. doi:10.1111/j.1475-4983.2011.01046.x.
{{cite journal}}: CS1 maint: multiple names: authors list (link)
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