The Adasaurus is closely related to the Dromaeosaurus. It was equipped with the same razor sharp claw on each of its hind feet.


The Achelousaurus is a quadrupedel herbivore which means that it walked on all four legs as opposed to two legs.


The Afrovenator name means African Hunter.


When the Agujaceratops was first discovered paleotologists thought that it was a Chasmosaurus until years later, when they realizes its a totally new species


The Alamosaurus was first discovered in 1922 Charles Gilmore. He found a pelvic bone and a shoulder bone.


Altirhinus got its name in 1998 from the latin word altus (high) and the Greek word rhinos (nose).


Fossil finding of the Animantarx suggest that the dinosaur was this was know to be in a floodplain environment.


The estimated length of the Ankylosaurus is 9 meters (30 ft).


Buitreraptor lived about 90 million years ago.


Cercharodontosaurus lived 90 to 100 million years ago.


The closest relatives of Carnotaurus are the Aucasaurus, Majungasaurus, and Rajasaurus.


The Centrosaurus belongs to the sub-family Centrosaurinae which was named after the dinosaur.


The Chirostenotesis thought to be an omnivore meaning that it eats meat as well as plants.


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.


The Deinonychus was about 11 feet in length with a skull about the size of 16.5inches.


Dromaeosaurus is from the Dromaeosaurinae group. This dinosaurs such as the Utahraptor, Achillobator, and Adasaurus were in the same group.


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 are thought to be very fast because they were very Ostrich-like, but there is not much evidence that this is true.


Giganotosaurus was discovered in 1993 by Ruben Carolini.


The Hesperonychus is known from a partial skeleton found by Elizabeth Nicholls.


Many Iguanodon fossils were found in many far apart locations such as Europe, Asia, Canada, USA, and Africa.


The Monoclonius is of the Ceratopsia group.


Most paleontologists now are convinced that Nanotyrannus was actually a juvenile Tyrannosaurus and not a separate genus of dinosaur.


There have been mentions that the Nigersaurus may have been responsible for dinosaur extinction by exhausting to plant life and causing starvation.


Olorotitan fossils have been found with nearby fossils of turtles, crocodilians, theropod dinosaurs, and nodosaurid dinosaurs.


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.


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 was first discovered in 1865 by William Fox. The same year it was named by a man by the name of Richard Owen.


The Rapator was found in the Griman Creek Formation at New South Wales, Australia. The first time it was described was in 1932.


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.


The Stygimoloch name means in Greek "horned devil from the river of death" and it walked upright on its two feet.


The Tarchia is the currently the geologically youngest known of all the Asian ankylosaurid dinosaurs.


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.


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.


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.


scientists argue of the purpose of the Tsintaosaurus' horn-like crest.


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.


The Tyrannosaurus was thought to be the biggest Carnivore ever to exist, but its not. The Giganotosaurus is actually the biggest.


To help it balance on one foot while kicking, the Utahraptors' tail stiffened.


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.

Cretaceous Period Dinosaurs

Click on any of the pictures or names above to learn specifically about that particular dinosaur of this period. The Cretaceous life is the time period of 135 to 65 million years ago. This was the last period of the dinosaur evolution chain. For reasons unknown today, all dinosaurs became extinct at the end of this Era. There is a lot more dinosaur species in the Cretaceous period than the other two dinosaur periods. The discoveries of fossils are typically in much better quality than the other two prehistoric time lines and due to less deterioration. The most famous dinosaurs known of the Cretaceous period is the massive Tyrannosaurus and the fearsome Velociraptor.

cretaceous dinosaurs
Image copyright Joe Tucciarone


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