Dinosaurs are famous for their size. Many giant dinosaurs can reach more than 30 meters in length, such as Diplodocus, Mamenchisaurus, Argentinosaurus, etc. Paleontologists have discovered that a dinosaur discovered in the 1970s could be up to 42 meters long, making it the longest known dinosaur and vertebrate!
North America is the country of giant dragons, especially the Morrison Formation of the Late Jurassic. The famous Diplodocus, Apatosaurus, Brachiosaurus, etc. were found in this formation, all of which were huge dinosaurs.
Just in 1972, Vivian Jones, a little girl ......