Mysterious Map Marvels

Cretaceous Calamity

 

Cretaceous Calamity Animals

Animals of Early Cretaceous Antarctica

Animals of Early Cretaceous Montana

Animals of Early Cretaceous Utah

~ Acrocanthosaurus atokensis: Acrocanthosaurus was one of the largest carnivores known, and was easily the largest in it's area. It even rivaled Tyrannosaurus in size. It was related to the mighty Jurassic predator Allosaurus, and other large predators like Carcharodontosaurus! It had a small sail running down it's back, but unlike the tall, thin sail of Spinosaurus, Acrocanthrosaurus' sail was more of a stiff ridge running the length of it's back. The sail's function is currently unknown.

Animals of Middle Cretaceous Central Asia

Animals of Middle-Late Cretaceous Africa

~ Deltadromeus agilis: Although it grew to the size of Tyrannosaurus, Deltadromeus was a light, agile abelisaur. Its speed was probably useful in catching prey and escaping its even larger neighbors, such as Carcharodontosaurus and Spinosaurus. [This is not the final version of the animal]

~ Spinosaurus aegyptiacus: The biggest carnivorous dinosaur of all time, Spinosaurus could grow up to at least 55 feet, much larger than Tyrannosaurus, Carcharodontosaurus, or Giganotosaurus. It is famous for the giant sail used for temperature regulation. Despite its size, most of its diet most likely comprised of carcasses and fish, judging from its crocodile-like jaws and huge claws (for fishing), as well as its relatives' diets.

~ Carcharodontosaurus saharicus: Carcharodontosaurus was one of the largest terrestrial carnivores to ever live. Although not as large as Spinosaurus or Giganotosaurus, it was still larger than Tyrannosaurus. It lived along side Deltadromeus and Spinosaurus, while competing for food. Its name means "shark lizard".

~ Suchomimus tenerensis: Suchomimus, like it's cousin Spinosaurus, was a giant. It could've reached the length of T.rex! It at fish, and had long, narrow jaws for doing so. It lived from around 110-120 million years ago, in the Middle Cretaceous, so it didn't have to worry about it's cousin's contemporaries. However, there was a threat even to Suchomimus, the giant crocodile Sarcosuchus. Like Spinosaurus, Suchomimus had a sail, but Suchomimus' wasn't as large and prounonced.

Animals of Late Cretaceous Alberta

Daspletosaurus torosus: Daspletosaurus was at the top it's food chain, and fed on everything from certopsians to hadrosaurs. At up to 30 ft. long and 2.5 tons, it didn't have any competition, except from certain fellow tyrannosaurs which it coexisited with in some areas. As with other theropods of it's size, Daspletosaurus may have lived in groups.

 

Animals of Late Cretaceous Montana

Animals of Late Cretaceous Patagonia

~ Giganotosaurus carolinii: Giganotosaurus, was one of the largest terrestrial carnivores to ever live. It was even larger than Tyrannosaurus, but still smaller than Spinosaurus. It lived during the Late Cretaceous in what is now Patagonia. It was a close cousin of the equally large African carnivore, Carcharodontosaurus. Being so large, it obviously hunted large prey, like the massive sauropod, Argentinosaurus. [This is not the final version of the animal]

Animals of Late Cretaceous Romania