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Theropoda Reference Libraries

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Velociraptor
2013-04-28 14:44:15

Velociraptor, meaning “swift seizer” is a genus of dromaeosaurid theropod dinosaur that lived about 75 to 71 million years ago during the later part of the Cretaceous Period. There are two species that are presently recognized. The type species is V. mongoliensis; fossils of this particular species have been uncovered in Mongolia. A second species, V. osmolskae, it was named in 2008 for...

Tarbosaurus
2013-02-18 12:21:10

Tarbosaurus, meaning “alarming lizard” is a genus of tyrannosaurid theropod dinosaur that thrived in Asia about 70 million years ago, at the end of the Late Cretaceous Period. Fossils have been uncovered in Mongolia, with more incomplete remains found further afield in parts of China. Many species have been named, although, modern paleontologists recognize only one, T. bataar, as...

Spinosaurus
2012-03-22 22:37:37

Spinosaurus, meaning “Spine lizard,” is a genus of theropod dinosaur from the lower Albian to lower Cenomanian stages of the Mid Cretaceous Period (112 to 97 million years ago). It lived in what is now North Africa. The type species is S. aegyptiacus. A potential second species, S. maroccanus, was discovered in Morocco. It was the first known dinosaur fossil from Egyptian remains...

Sinosauropteryx
2012-03-22 18:08:04

Sinosauropteryx, meaning “Chinese reptilian wing,” is a genus of theropod dinosaur from the Late Jurassic to the Early Cretaceous Period 135 to 121 million years ago. It was discovered in 1996 by two Chinese farmers in the dry countryside near Liaoning Province, China. The same area has also produced later on other bird-like dinosaur fossils including Caudipteryx and Protarchaeopteryx....

Tyrannosaurus
2012-03-21 21:47:44

Tyrannosaurus, meaning “tyrant lizard,” was a genus of theropod dinosaur from the Late Cretaceous Period (68 to 65 million years ago). It was among the last non-avian dinosaurs to exist prior to the Cretaceous-Tertiary extinction event. Perhaps the most famous Tyrannosaurus species, T. rex, was named in 1905 by Henry Fairfield Osborn, president of the American Museum of Natural History...

Siamosaurus
2011-04-11 15:16:36

Siamosaurus, meaning "Siamese lizard," is a genus of theropod dinosaur from the Early Cretaceous Period of what is now Thailand. Little is known about this Cretaceous carnivore, but it is known from teeth that closely resemble the Spinosaurus, that it may have been a fish eater. The type species, S. suteethorni, was described by Buffetaut and Ingavat in 1986. In a publication printed in...

Saurornitholestes
2011-01-03 17:35:28

Saurornitholestes, meaning "lizard-bird thief," is a genus of dromaeosaurids dinosaur from the Campanian stage of the Late Cretaceous Period (75 million years ago) of what is now Alberta, Canada. It was discovered in the badlands of Dinosaur Provincial Park in Alberta. Most of the partial skeletons and fossil fragments of this dinosaur are housed at the Royal Tyrrell Museum of Paleontology, in...

Afrovenator
2010-02-02 13:54:34

Afrovenator, meaning "African hunter" is a genus of theropod dinosaur from the Early Cretaceous Period (136 to 125 million years ago) that lived in northern Africa. Its remains were discovered in Niger in the Tiourarén Formation. It is known from a single nearly complete specimen. Only one named species is known, A. abakensis. The species name comes from the area it was found in Africa...

Ceratonykus
2009-08-18 17:41:19

Ceratonykus is a genus of theropod dinosaur from the Late Cretaceous Period and lived in what is now Mongolia. It is only known from a single fragmented skeleton. Once suggested as an avian dinosaur, this classification is now debated. Studies of the skull show that the brain was not avian in nature, and that there were bony projecting spurs on the wrist. Photo Copyright and Credit

Carnotaurus
2009-08-18 17:08:55

Carnotaurus, meaning "meat-eating bull", is a genus of dinosaur from the Late Cretaceous Period which lived in what is now South America. It was discovered in the La Colonia Formation near Patagonia, Argentina by José F. Bonaparte, who has uncovered many other South American dinosaurs. The name is derived from the Latin word carne: "flesh" and the Greek word tauros: "bull". Its naming refers...

Word of the Day
Cthulhu
  • A gigantic fictional humanoid alien god being described with a head resembling an octopus and dragon wings and claws, around whom an insane cult developed.
  • Pertaining to the mythos of Cthulhu and additional otherworldly beings created by H. P. Lovecraft or inspired by his writings and imitators.
This word was invented in 1926 by H.P. Lovecraft for his short story, 'The Call of Cthulhu.' 'Cthulhu' may be based on the word 'chthonic,' which in Greek mythology refers to the underworld.
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