Walther Kadow and Chaoyangsauridae: Difference between pages
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{{Taxobox
| color = pink
| name = Chaoyangsauridae
| fossil_range = [[Late Jurassic]]
| image = Xuanhuaceratops.JPG
| image_caption = ''Xuanhuaceratops, a chaoyangsaurid''
| regnum = [[Animal]]ia
| phylum = [[Chordata]]
| classis = [[Sauropsida]]
| superordo = [[Dinosauria]]
| ordo = [[Ornithischia]]
| subordo = [[Marginocephalia]]
| infraordo = [[Ceratopsia]]
| familia = '''Chaoyangsauridae'''
| familia_authority =
| subdivision_ranks = [[Genus|Genera]]
| subdivision =
''[[Chaoyangsaurus]]''<br>
''[[Xuanhuaceratops]]''
}}
'''Chaoyangsauridae''' is a family of [[dinosaur]]s. They were the first marginocephalan dinosaurs to appear on the planet, about 150 million years ago, in the [[Late Jurassic]] period. It had a sharp beak for snipping off leaves to eat and it had a very small frill. There are disagreements that the chaoyangsaurids were part of the pachycephalosaur group, ceratopsian group, or a whole different ancestral group.
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