DINOSAUR GRAVEYARD

 

Dinosaur Graveyard

ACROCANTHOSAURUS

Dinosaur Names 

Dinosaur:  Acrocanthosaurus

Pronunciation:  ak-ro-KAN-tho-SAWR-us

Translation:  high-spined lizard

Location:  Oklahoma and Texas

Era:  Cretaceous Period, 125 million years ago

Length:  40 feet        Height:  12 Feet

Weight:  4,000 - 6,000 pounds

Diet:  Meat Eater

Fossils Found:  Partial Skull, Neck, Ribs, Legs, Pelvis, Spine, Tail, Teeth, possible Footprints

 


Suspected Acrocanthosaurus Footprint


Acrocanthosaurus Partial Skeleton


Acrocanthosaurus
Fossilized Skull



Acrocanthosaurus Claws


Acrocanthosaurus Reconstructed Skull

Acrocanthosaurus is a genus of allosauroid theropod dinosaur that existed in what is now North America during the mid-Cretaceous Period, approximately 125 to 100 million years ago. Like most dinosaur genera, Acrocanthosaurus contains only a single species, A. atokensis.

Its fossil remains are found mainly in the U.S. states of Oklahoma and Texas, although teeth attributed to Acrocanthosaurus have been found as far east as Maryland. Typically for a theropod, Acrocanthosaurus was a bipedal predator. As the name suggests, it is best known for the high neural spines on many of its vertebrae, which most likely supported a ridge of muscle over the animal's neck, back and hips.

 Acrocanthosaurus was one of the largest theropods, approaching 12 meters (40 ft) in length and weighing as much as a modern white rhinoceros. Large theropod footprints discovered in Texas may have been made by Acrocanthosaurus, although there is no direct association with skeletal remains.

Recent discoveries have elucidated much of its anatomy, allowing for specialized studies focusing on its brain structure and forelimb function. However, there is still debate over its evolutionary relationships, with some scientists classifying it as an allosaurid, and others as a carcharodontosaurid. Acrocanthosaurus was the largest theropod in its ecosystem and likely an apex predator, possibly preying on large sauropods and ornithopods.

Acrocanthosaurus
Fossil range: Early Cretaceous

Acrocanthosaurus atokensis
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Sauropsida
Superorder: Dinosauria
Order: Saurischia
Suborder: Theropoda
Superfamily: Allosauroidea
Family:  Allosauridae or

Carcharodontosauridae

Genus:  Acrocanthosaurus
Species:  A. atokensis
Stovall & Langston, 1950

ACANTHOPHOLIS    ACROCANTHOSAURUS     TYRANNOSAURUS REX

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