15 facts about dinos
15 cool things about dinosaurs dinosaurs are a group of reptiles that appeared in the Triassic period between 243 and 233.23 million years. They became the terrestrial vertebrates after the jurassic-Triassic extinction event. 1. Scientist Richard Owens coined the term dinosaur in the 1800s. it means "terrible lizard". 2. Mamenchisaurs could stretch its neck up to 30 feet while a Giraffe's neck only stretches up to 6 feet long. Mamenchisaurus was first discovered in 1952 on the construction site of the Yitang Highway in Sichuan, China. Mamenchisaurus is a sauropod dinosaur genus including several species, known for their remarkably long necks which made up half the total body length. It is known from numerous species which ranged in time from 160 to 145 million years ago, from the Oxfordian age of late Jurassic Period in China. 3. Dinosaurs lived on the earth 160 million years while humans lived on the earth for 200 thousand years. 4. During...