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Latest Allosaurus Stories

b7bad097950fc782be008cd6febc74c11
2008-01-14 06:25:00

Dinosaurs grew fast, reached sexual maturity early and died young ATHENS, Ohio "“ Dinosaurs had pregnancies as early as age 8, far before they reached their maximum adult size, a new study finds. Researchers at Ohio University and University of California at Berkeley have found medullary bone "“ the same tissue that allows birds to develop eggshells "“ in two new dinosaur specimens: the meat-eater Allosaurus and the plant-eater Tenontosaurus. It's also been found in...

2007-11-11 03:00:08

By Lipkin, Christine Sereno, Paul C; Horner, John R INTRODUCTION OSSIFIED CLAVICLES, either as paired elements or as a median furcula, have been recorded in all major clades of dinosaurs, including ornithischians, sauropodomorphs, and theropods (Bryant and Russell, 1993). Nearly all but the most basal theropods, Eoraptor lunensis and Herrerasaurus ischigualastensis, have an ossified furcula including coelophysids (Downs, 2000; Tykoski et al., 2002; Carrano et al., 2005), allosauroids (Chure...

454df36bfc06c5857fdf1c6225a4f5751
2005-05-11 07:34:37

NEW YORK (AP) -- The bones? Waayyyy old. The discoveries, research and technology? Brand spanking, up-to-the-minute new. An exhibition opening this weekend at the American Museum of Natural History introduces viewers to the latest research being done on a perennial favorite subject - dinosaurs. "Dinosaurs: Ancient Fossils, New Discoveries" opens Saturday and runs through Jan. 8. Through new technologies like computer modeling and robotics and tried-and-true standbys like fossils and a...

bb8ef120c8b23bee9f68ead73f9745381
2005-03-24 06:46:39

PITTSBURGH (AP) -- What could be better than seeing the first tyrannosaurus rex ever discovered? Watching it being taken apart. Visitors to the Carnegie Museum of Natural History, which has one of the oldest and largest dinosaur collections in the nation, will be able to watch as the museum's collection of fossilized dinosaur skeletons are taken apart before a renovation of the museum's almost century-old Dinosaur Hall. "People can come in and watch the disarticulation process and watch as...


Latest Allosaurus Reference Libraries

Stegosaurus
2012-06-12 19:39:25

Stegosaurus, meaning “roof lizard,” is a genus of stegosaurid armored dinosaur from the Kimmeridgian to early Tithonian stages of the Late Jurassic Period (145 mya) in what is now western North America. It was first discovered from a bone bed in the Morrison Formation in Morrison, Colorado, and was first described in 1877 by Othniel Charles Marsh. These first fossils became known as the type species S. armatus. Marsh initially believed the remains were from an aquatic turtle-like...

45_26c5a87b2abaa3822e14362acf40b468
2010-02-16 15:35:57

Othnielosaurus is a genus of ornithiscian dinosaur from the Late Jurassic Period (155 to 148 million years ago). It lived in what is now the western United States. It was formerly assigned to the genus Laosaurus. It is now named in honor of famed paleontologist Othniel Charles Marsh. This genus was coined to contain the fossils formerly included in Othnielia, which is based on remains that may be too sparse to hold a name. Decades have been spent on research to untangle the taxonomy left...

66_8a5340272053a7c5d1f69a2b94a8a245
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 (Abaka, the name the Tuareg give to the region where the fossils were found). Afrovenator has been...

66_f3ccdd27d2000e3f9255a7e3e2c48800
2010-01-26 17:59:12

Allosaurus, meaning "different lizard", is a genus of theropod dinosaur from the Kimmeridgian/Tithonian age of the Late Jurassic Period (155 to 145 million years ago). It was first described in 1877 by Othniel Charles Marsh. The first recovered specimen came, most likely, from the Morrison Formation near Granby, Colorado. It was discovered in 1869 by Ferdinand Vandiveer Hayden. The original finding was identified by locals as "petrified horse hoofs". It was initially placed in the genus...

66_6ded6de4889da33edd95613c4a0c5155
2009-08-18 17:51:55

Ceratosaurus, meaning "horn lizard", is a genus of large predatory dinosaur from the Late Jurassic Period (Tithonian and Kimmeridgian ages). It is found in the Morrison Formation of North America, Tanzania and Portugal. It was discovered in the Cleveland Lloyd Dinosaur Quarry in central Utah and the Dry Mesa Quarry in Colorado. The type species, C. nasicornis, was described by O.C. Marsh in 1884 and then red scribed by Gilmore in 1920. Two more species, C. magnicornis and C. dentisulcatus,...

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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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