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Latest Theropoda Stories

New Fossil Evidence Shows Reproductive Changes During Transition From Dinosaurs To Birds
2014-05-30 13:14:34

Brett Smith for redOrbit.com - Your Universe Online Over the course of millions of years, some dinosaurs evolved into the modern birds we see today – and that transition included the shift to a single-ovary reproductive system, according to a new report in the National Science Review journal. The study authors said this change was probably advantageous to flying animals that evolved toward lighter and lighter weights. "The most widely accepted hypothesis for the presence of a...

Dinosaur Claws Were Used For More Than Just Ripping Flesh: Study
2014-05-07 12:08:20

Brett Smith for redOrbit.com - Your Universe Online The claws of Tyrannosaurus rex and Velociraptor are probably best known for ripping through the flesh of hapless prey, but a new study published in Proceedings of the Royal Society B has found that this family of dinosaurs, known as theropods, probably used its claws for a variety of purposes. In the study, Stephan Lautenschlager, from Bristol University, examined the differences in claw shape among theropods and analyzed them based...

life reconstruction of the new oviraptorosaurian dinosaur species Anzu wyliei
2014-03-20 04:30:15

Lee Rannals for redOrbit.com - Your Universe Online Researchers writing in the journal PLOS ONE have discovered a new bird-like dinosaur named Anzu wyliei. The fossil skeletons of Anzu were discovered in North and South Dakota underneath 66-million-year-old rocks. Anzu gives scientists the chance to study the anatomy and evolutionary relationships of Caenagnathidae, which is a group of theropod dinosaurs. “Anzu is far and away the most complete caenagnathid that has ever been...

Nanuqsaurus hoglundi
2014-03-13 09:43:11

Brett Smith for redOrbit.com - Your Universe Online The reexamination of a dinosaur skull found in Alaska has revealed that it may have belonged to a “smaller cousin” of Tyrannosaurs Rex – not a completely distinct species as originally believed. According to a report on the examination published on Wednesday in the journal PLoS ONE, the skull belonged to a lineage of theropods, or “beast feet,” dinosaurs that includes T. Rex. With most T. Rex fossils coming from temperate...

New Species Of Torvosaurus Was Largest European Land Predator
2014-03-06 08:08:06

Lawrence LeBlond for redOrbit.com - Your Universe Online Fossils of Torvosaurus, a large Jurassic-era theropod predator, were first unearthed in North America in 1971, later being named Torvosaurus tanneri. Examples of this dinosaur had not existed elsewhere until 2000, when paleontologists discovered another Torvosaurus fossil in Europe. The discovery, which came from a site just north of Lisbon, Portugal, led scientists to initially assume the remains were that of T. tanneri. However,...

Avian Evolution: How Raptor Limbs Became Bird Wings
2013-09-18 06:09:13

April Flowers for redOrbit.com - Your Universe Online Scientists are certain that sometime around 150 million years ago birds originated from a group of small, meat-eating theropod dinosaurs called maniraptorans. According to recent studies conducted around the world, the maniraptorans were very bird-like, with feathers, hollow bones, small body sizes and high metabolic rates. What remains unclear is at what point the forelimbs evolved into wings, making it possible for the maniraptorans...

Feathered Dinosaurs Developed Larger Brains Before Actually Taking Flight
2013-08-01 05:02:29

[ Watch the Video: CT Scan of Albatross Brain ] redOrbit Staff & Wire Reports - Your Universe Online Feathered dinosaurs actually developed the larger brains needed for flight before actually taking to the skies, according to a new study published Wednesday in the journal Nature. In the study, lead author Amy Balanoff, a research associate at the American Museum of Natural History and a postdoctoral researcher at Stony Brook University, and her colleagues, used CT scans to...

Fossil X-Rays Determine Archaeopteryx Had Bright Plumage
2013-06-12 12:51:11

Brett Smith for redOrbit.com - Your Universe Online The ℠dino-bird´ Archaeopteryx has long fascinated paleontologists and a new study in the Journal of Analytical Atomic Spectrometry suggests that the animal had bright plumage and wasn´t all-black as previously thought. Using a series of cutting-edge X-ray experiments, a team led by researchers from the University of Manchester found chemical traces of pigments in a 150 million-year-old fossil of the early bird....

New Study Says Male And Female Dinosaurs Incubated Eggs
2013-05-16 09:59:11

April Flowers for redOrbit.com - Your Universe Online New research into the incubation behavior of modern birds is shedding new light on the type of parental care carried out by their extinct ancestors. Geoff Birchard from the Department of Environmental Science and Policy at George Mason University, along with Charles Deeming and Marcello Ruta from the University of Lincoln's School of Life Sciences, wanted to test the theory that data from modern birds could be used to predict the...

Fossil Dinosaur Egg Reveals Uncommon Dinosaur Incubation Technique
2013-04-18 15:36:15

Lee Rannals for redOrbit.com - Your Universe Online Researchers at the University of Calgary and Montana State University have found a small North American dinosaur that incubated its eggs in a way similar to some modern brooding birds. In a report of their findings that appeared recently in the journal Paleobiology, the scientists wrote about their close examination of the shells of fossil eggs found in Alberta and Montana from a small meat-eating dinosaur called Troodon. They said...


Latest Theropoda Reference Libraries

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 some skull material from Inner Mongolia, China. They are smaller than other dromaeosaurids such as...

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 legitimate. Like most tyrannosaurus, Tarbosaurus was a sizeable bipedal predator, weighing up to six...

800px-Subadult_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 discovered in 1912 and described by German paleontologist Ernst Stromer in 1915. The original remains were...

630px-Sinosauropteryx_prima
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. Three complete skeletons of Sinosauropteryx have been found, including few samples of protofeathers,...

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 (AMNH). Teeth belonging to Tyrannosaurus were first discovered in 1874 by A. Lakes near Golden...

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Word of the Day
attercop
  • A spider.
  • Figuratively, a peevish, testy, ill-natured person.
'Attercop' comes from the Old English 'atorcoppe,' where 'atter' means 'poison, venom' and‎ 'cop' means 'spider.' 'Coppa' is a derivative of 'cop,' top, summit, round head, or 'copp,' cup, vessel, which refers to 'the supposed venomous properties of spiders,' says the OED. 'Copp' is still found in the word 'cobweb.'
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