(TRI-serr-oh-tops)
Plant-eater
30 feet long
Late Jurassic, 145 million years ago
Western North America, Montana
Triceratops is named for its three long horns. Though the horns look scary, they were thin and not a good defense against T. rex. So what did Triceratops use their horns for? Maybe they just scraped them against the horns of other Triceratops in contests for mates.
