三角龙是鸟臀目角龙下目角龙科的植食性(中生代没有草)恐龙的一属,化石发现于北美洲。三角龙生活在约6800万年前到6500万年前,是最晚出现的恐龙之一,且又因从1887年起发现的大量部份骨骸标本而著名,所以被认为是晚白垩纪的代表化石。三角龙是一种中等大小的四足恐龙,成年个体全长约有7.9到9米,重达6.1到12吨。它们的大头是最显著的特征,是所有陆地动物中最大之一。它们的头可长至超过2米,可以达到整个身 Triceratops is a genus of herbivores (Mesozoic without grass) dinosaur belonging to the genus Nocturnal, which is found in North America. The Triceratops, believed to be late Cretaceous, lived about 68 million to 65 million years ago and was one of the latest dinosaurs to be known as a large part of the specimen of bones found since 1887 fossil. Triceratops is a medium-sized quadruped dinosaur, with an adult individual measuring about 7.9 to 9 meters in length and weighing 6.1 to 12 tons. They are the most prominent feature of the bulk, is one of the largest of all land animals. Their heads can grow to more than 2 meters and reach the entire body