User:LittleLazyLass/Ankylopollexia
Extinct clade of dinosaurs / From Wikipedia, the free encyclopedia
Styracosterna is an extinct clade of ornithischian dinosaurs that lived from the Late Jurassic to the Late Cretaceous. It is a derived clade of ornithopods and contains thumb spiked animals such as Iguanodon, the crested hadrosaurs, and their many relatives.[1]
Quick Facts Scientific classification, Subgroups ...
LittleLazyLass/Ankylopollexia | |
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Mantellisaurus skeleton, Natural History Museum, London | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Clade: | Dinosauria |
Clade: | †Ornithischia |
Clade: | †Ornithopoda |
Clade: | †Ankylopollexia |
Clade: | †Styracosterna Sereno, 1986 |
Subgroups | |
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Likely first appearing during the Jurassic, Styracosterna became an extremely successful and widespread clade during the Cretaceous, and were found around the world. The group died out at the end of the Maastrichtian.[1] They grew to be quite large, comparable to some carnivorous dinosaurs and they were universally herbivorous.[2]