A wide range of dinosaur species, large size, can be found from a large number of dinosaur egg fossils, although the size is not consistent, but the difference is not very big. The fact is that the size of the eggs produced by dinosaurs does not grow proportio..

Euhelopus is a genus of titanosauriform sauropod dinosaur that lived between 129 and 113 million years ago during the Early Cretaceous in what is now Shandong Province in China. It was a large quadrupedal herbivore. Unlike most othe..

Plateosaurus (probably meaning "broad lizard", often mistranslated as "flat lizard") is a genus of plateosaurid dinosaur that lived during the Late Triassic period, around 214 to 204 million years ago, in what is now Cen..

In 1860, Sixt Friedrich Jakob von Kapff at the Heslacher Wand near Stuttgart discovered the upper jaw bone of a large reptile. The type specimen, which Hermann von Meyer declared to be distinct from Belodon, was described and named by the latter as the type sp..

Plateosauridae is a family of plateosaurian sauropodomorphs. Plateosaurids were early sauropodomorph dinosaurs which existed in Asia, Europe and South America during the Late Triassic period. Although several dinosaurs have been c..

Hadrosaurids (Greek: ἁδρός, hadrós, "stout, thick"), or duck-billed dinosaurs, are members of the ornithischian family Hadrosauridae. This group is also known as the duck-billed dinosaurs, for the flat, duck-bill appearance ..

Allosaurus (/ˌæləˈsɔːrəs/) is a genus of large theropod dinosaur that lived 155 to 150 million years ago during the late Jurassic period (Kimmeridgian to early Tithonian). The name "Allosaurus" means "different lizard". It is d..

viraptor is a genus of small Mongolian theropod dinosaurs, first discovered by technician George Olsen in an expedition led by Roy Chapman Andrews, and first described by Henry Fairfield Osborn, in 1924. Its name is Latin for 'egg taker' or "egg s..

Mamenchisaurus (/mɑːˈmʌntʃiˈsɔːrəs/ mah-MUN-chi-SAWR-əs, or spelling pronunciation /məˌmɛntʃiˈsɔːrəs/) is a sauropod dinosaur genus including several species, known for their remarkably long necks which made up half the tota..