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Latest Theropoda Stories

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...

Dinosaur Fossil Challenges Bird Evolution Theory
2013-01-25 04:10:05

redOrbit Staff & Wire Reports - Your Universe Online A recently discovered dinosaur fossil believed to pre-date those from which birds were believed to have evolved could drastically change current theories on the origins of flight, according to a new UK study. According to BBC News, the fossil comes from a feathered-but-flightless dinosaur that was less than a foot in length and lived approximately 140 million years ago. The creature, which has been dubbed the Eosinopteryx, would...

Study Peers Into Dinosaur Heads
2012-12-20 19:46:31

Lee Rannals for redOrbit.com — Your Universe Online Scientists found one dinosaur species had particularly well developed senses of smell, hearing and balance, which could be attributed to the extinct animal's big forehead. Scientists reported in PLOS ONE the well-developed senses in therizinosaurs might have affected or benefited from an enlarged forebrain. Researchers were surprised by the findings, because exceptional sensory abilities would be expected from predatory...

Evolution Of Theropods Linked To Environmental Factors
2012-11-29 05:41:02

Alan McStravick for redOrbit.com - Your Universe Online The heaviest flying bird tops out at between 40-42 pounds. And sure, some of the flightless birds can grow to upwards of 300 pounds. But to imagine ancestors of these modern day creatures tipping the scales at upwards of 7,000 pounds is hard to do, indeed. A recent study out of North Carolina State University (NCSU) and the Field Museum in Chicago, Illinois, looks specifically at the feathered herbivores of the Cretaceous period...

Dinosaurs Studied To Test Cope's Rule
2012-11-03 06:05:06

Alan McStravick for redOrbit.com - Your Universe Online Before noted paleontologist and ichthyologist Edward Cope passed away in 1897, he had devised a theory that has, to this day, its proponents and detractors. His theory, known today as Cope´s Rule, stated that animals will, in their own voyage through the process of evolution, grow ever larger. This evolutionary trend has been noted across the animal kingdom. Researchers from the National Museum of Natural History (NMNH) want to...

Feathered Dinosaur Fossils Discovered In North America
2012-10-26 05:01:43

[ Watch the Video: Fossils of First Feathered Dinosaurs from North America Found ] April Flowers for redOrbit.com - Your Universe Online Remember the scene in the original Jurassic Park movie when the giant ostrich-like dinosaurs run from an enraged Tyrannosaurus rex? The scaly, fleet-footed animals moved like a flock of birds, gracefully wheeling across the landscape. A new study, recently published in the journal Science, reveals that this depiction of the bird-mimic dinosaurs...

2012-07-12 13:14:35

It is the only dinosaur egg in the world to have an oval shape, similar to that of chicken eggs Before her death in December 2010, Nieves López Martínez, palaeontologist of the Complutense University of Madrid, was working on the research of dinosaur eggs with a very peculiar characteristic: an ovoid, asymmetrical shape. Together with Enric Vicens, palaeontologist of the Universitat Autònoma de Barcelona, the two scientists conducted an exhaustive...

f16d48712f20574bd7f08389439c2be1
2011-08-10 06:50:00

By Carol Clark, Emory University Paleontologists have discovered a group of more than 20 polar dinosaur tracks on the coast of Victoria, Australia, offering a rare glimpse into animal behavior during the last period of pronounced global warming, about 105 million years ago. The discovery, reported in the journal Alcheringa, is the largest and best collection of polar dinosaur tracks ever found in the Southern Hemisphere. "These tracks provide us with a direct indicator of how these dinosaurs...


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
vermicular
  • Like a worm in form or movement; vermiform; tortuous or sinuous; also, writhing or wriggling.
  • Like the track or trace of a worm; appearing as if worm-eaten; vermiculate.
  • Marked with fine, close-set, wavy or tortuous lines of color; vermiculated.
  • A form of rusticated masonry which is so wrought as to appear thickly indented with worm-tracks.
This word ultimately comes from the Latin 'vermis,' worm.
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