Cretaceous era creatures are very adapt creatures, most adaptations occur for mating as Dawins theory of evolution seems prominant in this era. The cretaceous came rise to bird-like dinosaurs, marine reptiles and pterosaurs. At the end of the era, a mass extinction saw off many of the creatures giving rise to mammals.
Adasaurus
The Adasaurus is closely related to the Dromaeosaurus. It was equiped with the same razor sharp claw on each of its hind feet. Achelousaurus
The Achelousaurus is a quadrupedel herbivore which means that it walked on all four legs as opposed to two legs. Afrovenator
The Afrovenator name means African Hunter. Agujaceratops
When the Agujaceratops was first discovered paleotologists thought that it was a Chasmosaurus until years later, when they realizes its a totally new species Alamosaurus
The Alamosaurus was first discovered in 1922 Charles Gilmore. He found a pelvic bone and a shoulder bone. Altirhinus
Altirhinus got its name in 1998 from the latin word altus(high) and the Greek word rhinos (nose). Animantarx
Fossil finding of the Animantarx suggest that the dinosaur was this was know to be in a floodplain environment. Ankylosaurus
The estimated length of the Ankylosaurus is 9 meters (30 ft). Archeopteryx
Archeopteryx was first thought to be the missing link between birds and dinosaurs. The dinosaur has the trademark raptor claw, showing that raptors may have been the decendents of todays birds.Buitreraptor
Buitreraptor lived about 90 million years ago. Carcharodontosaurus
Cercharodontosaurus lived 90 to 100 million years ago. Carnotaurus
The closest relatives of Carnotaurus are the Aucasaurus, Majungasaurus, and Rajasaurus. Centrosaurus
The Centrosaurus belongs to the sub-family Centrosaurinae which was named after the dinosaur. Chirostenotes
The Chirostenotesis thought to be an omnivore meaning that it eats meat as well as plants. Corythosaurus
Corythosaurus' had a beak and not a mouth. there was no teeth in the front, but rows of them in the back of the jaw. Deinonychus
The Deinonychus was about 11 feet in length with a skull about the size of 16.5inches. Dromaeosaurus
Dromaeosaurus is from the Dromaeosaurinae group. This dinosaurs such as theUtahraptor, Achillobator, and Adasaurus were in the same group. Falcarius
The Falacarius got its name from the word sickle. Falcarius in Latin means sickle cutter, which scientists have used to describe its awkward clawed hands. Gallimimus
Gallimimus are thought to be very fast becuase they were very Ostrich-like, but there is not much evidence that this is true. Giganotosaurus
Giganotosaurus was discovered in 1993 by Ruben Carolini. Hesperonychus
The Hesperonychus is known from a partial skeleton found by Elizabeth Nicholls. Iguanodon
Many Iguanodon fossils were found in many far apart locations such as Europe, Asia, Canada, USA, and Africa. Microraptor
Microraptor was a very small four winged glider. In the raptor family, possessing the larger third toe claw, it is one of the decendents of modern birds. It hunted small bugs and insects, and was also hunted by its larger reletives. The microraptor could not live on ground because of the wings on its hind legs.Monoclonius
The Monoclonius is of the Ceratopsia group. Nanotyrannus
Most paleontologists now are convinced that Nanotyrannus was actually a juvenile Tyrannosaurus and not a separate genus of dinosaur. Nigersaurus
There has been mentionings that the Nigersaurusmay have been responsible for dinosaur extinction by exhausting to plant life and causing starvation. Olorotitan
Olorotitan fossils have been found with nearby fossils of turtles, crocodilians, theropod dinosaurs, and nodosaurid dinosaurs. Pachycephalosaurus
The Pachycephalosaurus Large helmet on its head was originally thought to be for competition with bumping heads. This thought has been frowned upon because they would've easily been injured this way. Parasaurolophus
The long tube-like crest on the Parasaurolophus is not known what its purpose is for sure. Some say that it was for thermoregulatory functions to control its temperature. Polacanthus
Polacanthus was first discovered in 1865 by William Fox. The same year it was named by a man by the name of Richard Owen. Rapator
The Rapator was found in the Griman Creek Formation at New South Wales, Australia. The first time it was described was in 1932. Suchomimus
Suchomimus had a very high sail along its back that was probably used to let out body head and have advanced controlling of its temperature. Stygimoloch
The Stygimoloch name means in Greek "horned devil from the river of death" and it walked upright on its two feet. Tarchia
The Tarchia is is currently the geologically youngest known of all the Asian ankylosaurid dinosaurs. Torosaurus
Torosaurus are from the dinosaur group "ceratopians" which means bird-hipped. This group of dinosaurs had a lot in common with bird such as a beak instead of a mouth. Triceratops
The name Triceratops actually means "Three horned face." It was named by Othniel Charles Marsh on the third try. He first named it Bison alticornis, then Ceratops, to finally later called it Triceratops. Newly discovered, the triceratops may have been omnivorous as the strong beak could easily cut through flesh and bone.Troodon
The name Troodon is Greek for Wounding tooth. This refers to the dinosaurs teeth which had apically oriented serrations. This was very rare with other theropods Tsaagan Mangas
The Research of the Tsaagan Mangas is based on only a single skull fossil because there has never been any findings since. Tsintaosaurus
scientists argue of the purpose of the Tsintaosaurus' horn-like crest. Tyrannosauropus
Fossils were found with a Protoceratops & Raptor that seem to have been fighting when they were quickly killed. The claw of the raptor was in the others' stomach. Tyrannosaurus
The Tyrannosaurus was thought to be the biggest Carnivore ever to exist, but its not. The Giganotosaurus is actually the biggest. Utahraptor
To help it balance on one foot while kicking, the Utahraptors' tail stiffened. Velociraptor
The velociraptor was a small intelligent creature that hunted in packs rather like wolves. Their main weapon of useage was the large hooked claw on its third toe.