Triceratops (9 m, ~6,800 kg) was far larger than Protoceratops (1.8 m, ~83 kg).
Triceratops had three prominent horns; Protoceratops had a large frill but no true horns.
Protoceratops lived in Asia (Gobi Desert); Triceratops lived in North America.
Protoceratops is considered more basal (primitive) among ceratopsians; Triceratops is a derived ceratopsid.
Protoceratops is famous for nesting colonies and a fossil locked in combat with Velociraptor; Triceratops is known for combat with T. rex.
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Did You Know? fun facts
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Did You Know?
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Triceratops was about 5.0x longer than Protoceratops.
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Triceratops weighed roughly 82x more than Protoceratops.
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Both Protoceratops and Triceratops were herbivores.
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Both dinosaurs lived during the Cretaceous Late period and may have coexisted.
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Triceratops was discovered 34 years earlier, in 1889.
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Both belong to the Ceratopsia clade, making them relatively close relatives.
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Related comparisons
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