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Topic: Acrocanthosaurus


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In the News (Mon 28 Dec 09)

  
  Acrocanthosaurus - Wikipedia, the free encyclopedia
Acrocanthosaurus (ak-ro-KAN-tho-SAWR-us; "high-spined lizard") is a genus of carnosaurian theropod dinosaur from the mid-Cretaceous Period of North America.
Acrocanthosaurus is named for the spines on its back, from the Greek akro ("high"), akantha ("spine"), and sauros("lizard").
Acrocanthosaurus FAQ from the North Carolina Museum of Natural Sciences.
en.wikipedia.org /wiki/Acrocanthosaurus   (1071 words)

  
 Acrocanthosaurus- Enchanted Learning Software
Acrocanthosaurus (meaning "high-spine lizard" because of the spikes growing out of its spine) was a fierce predator that was roughly 30-40 feet (9-12 m) long and weighed about 5,000 pounds (2300 kg).
Acrocanthosaurus may have been a carnosaur, whose intelligence (as measured by its relative brain to body weight, or EQ) was high among the dinosaurs.
Acrocanthosaurus is known from incomplete skeletons and teeth and was named by paleontologists Stovall and Langston in 1950.
www.zoomdinosaurs.com /subjects/dinosaurs/dinos/Acrocanthosaurus.shtml   (332 words)

  
 Acrocanthosaurus Dinosaur @ Planet Dinosaur
Acrocanthosaurus is known from incomplete skeletons and teeth
Acrocanthosaurus is famous for the tall spines on its back, and tail.
Acrocanthosaurus fossils have been found in what is now the USA, in Oklahoma, Texas, and Utah.
planetdinosaur.com /dinosaurs_a2z/A/acrocanthosaurus.htm   (117 words)

  
 Acrocanthosaurus: Terror of the South
Acrocanthosaurus is known from only four specimens, all found from sediments of the Trinity Group in southern Oklahoma and north central Texas, and a few isolated teeth in Maryland.
Acrocanthosaurus is in the shadow of the much more famous Tyrannosaurus rex.
Acrocanthosaurus was about the same length as Tyrannosaurus, but not quite as tall, and it was only about half the weight of Tyrannosaurus.
www.suite101.com /article.cfm/paleontology/36956   (469 words)

  
 Harris
The vertebra is not opisthocoelous, as are the cranial dorsals of Acrocanthosaurus.
Acrocanthosaurus sp." is present in the Ruby Ranch fauna; this is in reference to an isolated tooth (CEU 5107) with very fine serrations from the Cedar Mountain Formation near the Cleveland-Lloyd Dinosaur Quarry (J. Kirkland, personal comm., 1998).
Acrocanthosaurus is known from the Twin Mountain Formation of Texas (Harris, 1997,1998) and the Antlers Formation of Oklahoma (Stovall and Langston, 1950).
www.glue.umd.edu /~gdouglas/harris/harris.htm   (2826 words)

  
 JPOG: Dinosaur Studies and Extreme Park Design   (Site not responding. Last check: 2007-10-10)
Despite its small size (it is the smallest of the big four cretaceous carnivores) and soft roar, Acrocanthosaurus actually does quite well, occasionally dominating spinosaurs and frequently dominating tyrannosaurs.
Acrocanthosaurus is a fierce hunter, but around its pack mates, it is friendly and even affectionate.
Acrocanthosaurus comes from an odd time (115-105 million years ago) and an odd place (with fossils found in Oklahoma, Texas, Utah and perhaps Maryland) as far as the game is concerned.
home.earthlink.net /~melanthab/DinosaurStudies/acrocanthosaurus.htm   (401 words)

  
 Acrocanthosaurus - Dinosaur Info
The Acrocanthosaurus was a sail-backed, bipedal, Saurischian, carnivore that grew up to 39 feet long and weighed approximately 5,000 pounds.
A fierce predator, the Acrocanthosaurus had 17-inch spikes that extended down its vertebrae from the the neck to the tail.
Skeletons of the Acrocanthosaurus have been found in the states of Oklahoma, Utah, and Texas.
www.dinosaur-info.com /acrocanthosaurus   (100 words)

  
 Acrocanthosaurus atokensis
Acrocanthosaurus is somewhat of a missing link in the Allosaur family between the Jurassic Allosaurus and later Cretaceous Carcharadontosaurus.
This could have given Acrocanthosaurus more suspension bridge-like stability for grappling large prey or yanking carcasses to a safe feeding spot, or just fighting amongst each other.
The teeth of Acrocanthosaurus were suited to slashing flesh from bone, and generally eating the softer parts of prey.
www.keltationsart.com /acrocanthosaurus.htm   (319 words)

  
 Acrocanthosaurus Printout- ZoomDinosaurs.com
Acrocanthosaurus means "high-spined lizard." No one knows what color this, or any dinosaur, was.
Anatomy: Acrocanthosaurus was 30-40 feet (9-12 m) long and weighed about 5,000 pounds (2300 kg).
Fossils: Acrocanthosaurus fossils have been found in Oklahoma, Texas, and Utah (in the USA).
www.enchantedlearning.com /subjects/dinosaurs/dinotemplates/Acrocanthosaurus.shtml   (185 words)

  
 ACROCANTHOSAURUS   (Site not responding. Last check: 2007-10-10)
Acrocanthosaurus was a meat-eater with a relatively small head, with the normal allosaur eye horns developed into ridges protecting the eyes and joined to a second ridge running along the top of the nose.
The lower jaw is very deep at the back end, giving Acrocanthosaurus a more powerful bite than Allosaurus, with larger teeth.
In general the body shape and limbs are characteristic of allosaurids, except for a ridge running from behind the skull to the base of the tail, and 3 hand claws shaped like scimitars and designed more for holding than puncturing.
www.dinoruss.com /de_4/5c51805.htm   (189 words)

  
 Paleontology and Geology Glossary
(pronounced AK-roh-CAN-thuh-SAWR-us) Acrocanthosaurus (meaning "high-spine lizard" because of the spikes growing out of its spine) was a theropod (a bipedal, meat-eating dinosaur) that was roughly 30-40 feet (9-12 m) long and weighed about 2300 kg.
Acrocanthosaurus lived during the early Cretaceous period, roughly 115 million-105 million years ago in the tropics near sea level (in what is now Oklahoma, Texas, and Utah, USA).
It is known from incomplete skeletons and teeth and was named by paleontologists Stovall and Langston in 1950.
www.enchantedlearning.com /subjects/dinosaurs/glossary   (1513 words)

  
 Museum of the Red River-McCurtain County's Dinosaur
This dinosaur lived about 45 million years before the reign of Tyrannosaurus rex, and is the largest meat eating dinosaur from that era to have been discovered in North America.
The claws of Acrocanthosaurus atokensis measure up to six inches in length and are well designed for capturing and holding prey, and for tearing flesh from bone.
The Acrocanthosaurus atokensis displayed at the Museum of the Red River, which acquired it in 2003, is one of the earliest casts made.
www.museumoftheredriver.org /dino.html   (341 words)

  
 WMNH - Acrocanthosaurus atokensis
This skeleton of Acrocanthosaurus was excavated over a period of three years, beginning in 1983, from private land in McCurtain County in southeastern Oklahoma by amateur collectors, Cephis Hall and Sid Love.
The name Acrocanthosaurus atokensis was first assigned to two very incomplete skeletons excavated from Atoka County in Oklahoma which were described in 1950.
One of the most bizarre and prominent identifying features of the Acrocanthosaurus species is the presence of extremely long spines along the top of the vertebrae of the back, hips and tail.
www.wmnh.com /wmge0000.htm   (767 words)

  
 Its Above.com Pre-Historic Acrocanthosaurus
Acrocanthosaurus could be classified with the Carcharodontosaurids or the Allosaurids.
Even though Acrocanthosaurus had a sail, it was not a Spinosauroid.
Woolly mammoths grew to about the size of present-day Asiatic elephants, possessed warm coats consisting of long, brown guard hairs and soft underwool, large curved ivory tusks, and knob-like heads.
www.itsabove.com /History/Pre-Historic/Dinosaurs/Acrocanthosaurus.htm   (290 words)

  
 Dinobase   (Site not responding. Last check: 2007-10-10)
Acrocanthosaurus, which means "tail-spined lizard" was named by the palaeontologists J. Willis Stovall and Wann Langston Jr.
Acrocanthosaurus was a carnivorous dinosaur with tall spines on its neck and back.
A large Acrocanthosaurus atokensis specimen, nicknamed "Fran" has recently been reconstructed and studied in detail.
palaeo.gly.bris.ac.uk /Dinos/Genlist/GenA/Acroctxg.html   (59 words)

  
 Acrocanthosaurus   (Site not responding. Last check: 2007-10-10)
In fact the name Acrocanthosaurus means 'high spined lizard' in Greek (the last part of its name, atokensis, refers to Atoka County in Oklahoma where the only full skeleton was discovered).
Acrocanthosaurus is in the same family of dinosaurs as the Allosaurus, which was a very successful family of dinosaurs.
The ribs beneath and in front of this scapula appear to have been broken and healed, indicating that the animal had been injured.
www.jpinstitute.com /dinopedia/dinocards/dc_acroc.html   (551 words)

  
 Acrocanthosaurus   (Site not responding. Last check: 2007-10-10)
Pictured here is Acrocanthosaurus atokensis, from the southwestern portion of the United States.
The most peculiar feature of this animal was its large ridge along its back, from which its name is derived.
Skull reconstruction of the Cretaceous allosaurid Acrocanthosaurus atokensis.
dinodomain.com /acro.html   (77 words)

  
 About Acrocanthosaurus   (Site not responding. Last check: 2007-10-10)
In fact, the remains which had previously been found were so incomplete that scientists could not determine the lineage of Acrocanthosaurus, i.e.
As a result of the completeness of this specimen and its collection and preparation, scientists have been able to determine the close relationship of Acrocanthosaurus to Allosaurus, a Jurassic dinosaur from North America.
The arms and shoulders of this Acrocanthosaurus are much larger and more heavily muscled and thus probably more powerful than the arms of Tyrannosaurus rex.
www.bobainsworth.com /fossil/acro1.htm   (568 words)

  
 texas dinosaurs
The carnivorous Acrocanthosaurus was a large allosauroid, 8 to 12 meters long and weighing 2 to 3 tons.
Acrocanthosaurus is most closely related to the early Cretaceous, African genus Carcharodontosaurus.
Harris, J. A reanalysis of Acrocanthosaurus atokensis, its phylogenetic status, and paleobiogeographic implications, based on a new specimen from Texas.
users.tamuk.edu /kfjab02/dinos/vptexas.htm   (3953 words)

  
 Acrocanthosaurus Carnegie Museum Dinosaur   (Site not responding. Last check: 2007-10-10)
Hand-painted Acrocanthosaurus model is scaled at 1:40 and is part of the world's premier line of collectible dinosaur replicas from the Carnegie Institute.
This replica has been researched and authenticated by the Carnegie Museum of Natural History, Pittsburgh, Pennsylvania.
The hand-painted Acrocanthosaurus is scaled at 1:40 and measures 7.5 L x 3.5" H (19.5 x 9 cm).
www.playfairtoys.com /index.asp?PageAction=VIEWPROD&ProdID=2021   (65 words)

  
 Senate Concurrent Resolution 3 - To Tulsa   (Site not responding. Last check: 2007-10-10)
WHEREAS, the Acrocanthosaurus atokensis was the largest carnivore on the North American Continent during the early Cretaceous period and is comparable in size to the Tyranosaurus Rex, but millions of years older.
THAT the dinosaur Acrocanthosaurus atokensis be designated as the State Dinosaur of Oklahoma.
THAT a copy of this resolution be distributed to the family of Sid Love, Cephis Hall, the Museum of the Red River, and the University of Oklahoma.
www.totulsa.com /legislation/scr2005/scr3.html   (182 words)

  
 Saurischian dinosaurs: Carnosaur: Acrocanthosaurus   (Site not responding. Last check: 2007-10-10)
Acrocanthosaurus means 'high spined reptile', and this dinosaur was a terrifying flesh-eating dinosaur related to Allosaurus.
It lived in the Early Cretaceous period, and was found in 1950 in Oklahoma and later in Texas Acrocanthosaurus was 40ft long and weighed between 2-3 tons.
Spines along its backbone formed a ridge or low sail that ran the length of the dinosaur from neck to tail.
www.nhm.org /journey/prehist/saur/acrocanthosaurus.html   (191 words)

  
 Cover to the book Dinosaur Hunt, by Karen Carr and published by HarperCollins Publishers.   (Site not responding. Last check: 2007-10-10)
The trackways in the Paluxy River, near Glen Rose, Texas, that record the ancient passage of Acrocanthosaurus and Pluerocoelus are now a popular tourist attraction.
Karen's book, "Dinosaur Hunt," is a fascinating illustrated glimpse into the lives of ancient animals, and features one of the most famous predator-prey confrontations from the Cretaceous.
Karen's book tracks the life of Acrocanthosaurus from hatchling through maturity, and presents what may have happened along this famous trackway.
www.karencarr.com /gallery_dino_hunt3.html   (241 words)

  
 "Glenrose Confrontation," a Cretaceous dinosaur mural by Karen Carr.   (Site not responding. Last check: 2007-10-10)
The dinosaur tracks preserved in the bed of the Paluxy River, near Glen Rose, Texas, are among the best known and most studied in paleontology.
They clearly capture the footprints of the huge herbivore Pleurocoelus and a hunting carnivore, Acrocanthosaurus, in tracks laid down side by side.
For 70 years, scientists and dinosaur fans alike have marveled at the tracks and have pondered whether the trackway preserves direct evidence of a confrontation between these two Cretaceous heavyweights.
www.karencarr.com /gallery_glenrose_detail.html   (328 words)

  
 Acrocanthosaurus [The Dinosauricon]
Detail of Acrocanthosaurus atokensis attacking a male Tenontosaurus tilletti by Anthony J. Pichler
Acrocanthosaurus atokensis on the Prowl by Kris Kripchak
Skeleton of the allosaurid Acrocanthosaurus atokensis by Jaime Headden
dino.lm.com /taxa/display.php?name=Acrocanthosaurus   (66 words)

  
 Fun Stuff: FAQ Pages: Acrocanthosaurus atokensis ~ NC Museum of Natural Sciences
Only four skeletal specimens have been found and most of the remainder are fragments or teeth.
The Museum’s Acrocanthosaurus specimen is the best yet unearthed, with 54 percent of the bones represented, and the only one with a complete skull.
Before this specimen was discovered, paleontologists couldn’t even determine the dinosaur’s general appearance.
www.naturalsciences.org /funstuff/faqs/acro.html   (586 words)

  
 Acrocanthosaurus atokensis Skull
The fossils are nicknamed FRAN after Fran Graffham of Geological Enterprises, UK.
The name Acrocanthosaurus atokensis (akro- terminal,topmost; akanthos- thorn) refers to the presence of neural spines almost 5 times the height of the centra in the dorsal vertebrae.
This theropod had a sail but not as large as the Jurassic Park III Spinosauruswhose spines were 11 times the centra.
www.mcorriss.com /DA3.html   (131 words)

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