Agathaumas
Agathaumas ("great wonder") is a dubious genus of a large ceratopsid dinosaur that lived in Wyoming during the Late Cretaceous (65 million years ago). The name comes from Greek, αγαν - 'much' and θαυμα - 'wonder'. It was seen as the largest land animal known at the time of its discovery and might be a synonym of Triceratops. It was related to Ceratops.
| Agathaumas | |
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| Illustration of the vertebrae and sacrum | |
Scientific classification 
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| Kingdom: | Animalia |
| Phylum: | Chordata |
| Order: | Ornithischia |
| Family: | Ceratopsidae |
| Genus: | Agathaumas Cope, 1872 |
| Species: | A. sylvestris
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| Binomial name | |
| Agathaumas sylvestris Cope, 1872
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Agathaumas Media
Cope's 1890 sketch of Agathaumas as a ceratopsian based on Triceratops
"Agathaumas sphenocerus" by Charles R. Knight, 1897
