Agathaumas

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Agathaumas
Temporal range: Late Cretaceous, 66 Ma
Agathaumas sylvestris.jpg
Illustration of the vertebrae and sacrum
Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Clade: Dinosauria
Order: Ornithischia
Family: Ceratopsidae
Subfamily: Chasmosaurinae
Tribe: Triceratopsini
Genus: Agathaumas
Cope, 1872
Species:
A. sylvestris
Binomial name
Agathaumas sylvestris
Cope, 1872

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.