Pteranodon fossils show that it had a wingspan of up to 7 meters

which makes it an interesting case of insular speciation

The most notable feature of Parasaurolophus walkeri is its crest

Brachiosaurus altithorax may also have ingested stones to aid in the digestion process

Edmontosaurus Tarchia Pteranodon fossils show that itEdmontosaurus is a genus of hadrosaurid dinosaurs, commonly known as "duck billed dinosaurs". These dinosaurs lived during the Late Cretaceous period, approximately 73 to 65 million years ago. The name "Edmontosaurus" comes from the place where the first fossil was found, the Edmonton River bed in Alberta, Canada. Edmontosaurus were large herbivorous dinosaurs that reached impressive sizes. The best known and studied species is the Edmontosaurus