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Theropods Reference Libraries

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Megalosaurus
2013-04-28 14:57:47

Megalaosaurus, meaning “Great Lizard”, from Greek megalo, meaning ‘big’ or ‘tall’ and sauros, meaning “lizard”, is a genus of large and meat-eating theropod dinosaurs of the Middle Jurassic period of Europe. It’s significant as the first genus of dinosaur, outside of birds, to be described and named. Megalosaurus might have been the first dinosaur to be described in...

Aerosteon
2010-02-16 15:57:17

Aerosteon, meaning "air bone", is a genus of theropod dinosaur from the Santonian age of the Late Cretaceous Period (84 million years ago). It lived in what is now Argentina. It was discovered in 1996 in the province of Mendoza. The type, and only known, species is A. riocoloradensis. Its specific name refers to the Rio Colorado Formation where it was found. Aerosteon is known from a single...

Labocania
2010-02-03 16:33:45

Labocania, meaning "red lips"(named for the La Bocana Roja Formation), is a genus of theropod dinosaur from the Campanian age of the Late Cretaceous Period (70 million years ago). It lived in what is now Baja California, Mexico. The type species, L. anomala, was described in 1974 by Ralph Molnar. Labocania is known only from fragmentary remains, and its physical characteristics are not well...

Megaraptor
2010-02-02 15:48:12

Megaraptor, meaning "giant thief", is a genus of dinosaur from the Late Cretaceous Period that lived in what is now Argentina. This was one of the largest carnivorous dinosaurs of all time, and once believed to be the largest dromaeosaur ever found. After further research, this was ruled to be either a carnosaur or spinosaur. Initially being described as a large dromaeosaur due to its...

Cryolophosaurus
2009-08-18 20:48:47

Cryolophosaurus, meaning "cold crest lizard", is a genus of theropod dinosaur from the Early Jurassic Period (Pliensbachian Age). It is known from the Hanson Formation (previously known as the Upper Falla Formation). It was discovered by paleontologist Dr. William Hammer in 1991. It was the first carnivorous dinosaur to be discovered in Antarctica. It was also the first dinosaur from Antarctica...

Word of the Day
malpais
  • The ragged surface of a lava-flow.
'Malpais' translates from Spanish as 'bad land.'