THE CARNOSAURIAN DINOSAURS

 

Acrocanthosaurus

AK-ro-KAN-thoh-SAW-rus

High-spined reptile

Saurischia: Carnosauria

Early Cretaceous

Oklahoma, USA

Acrocanthosaurus was a very large and terrifying meat-eater, about 40ft. (12m) long. It had foot-long spines on its backbone. These Suggest that it may have had a raised ridge or small sail along its back, similar to that of SPINOSAURUS. Several skeletons were found around 1950.

 

 

Albertosaurus

al-BERT-oh-SAW-rus

Alberta reptile

Saurischia: Carnosauria

Late Cretaceous

Alberta, Canada, and Montana, USA

Albertosaurus (sometimes called Gorgosaurus) also lived right at the end of the age of the dinosaurus. It was smaller than TYRANNOSAURUS at about 26ft. (8m) long, but it was still a fearsome beast. Dozens of bones and skeletones of Albertosaurus have been collected over the past hundred yeares, which have been given different names. Recently paleontologists have decided that they belong to the same type of dinosaur.

 

 

Allosaurus

AL-oh-SAW-rus

Different reptile

Saurischia: Carnosauria

Late Jurassic

USA and Tanzania

Allosaurus Was the main meat-eithing dinosaur in North America in the late Jurassic period and it may have fed on well-known dinosaurus like APATOSAURUS, STEGOSAURUS, and DRYOSAURUS. Apatosaurus was probably too big for Allosaurus to kill, but it may have fed on dead bodies. A skeleton of Apatosaurus has been found with Allosaurus tooth marks on some tail bones. Allosaurus was different from other meat-eathing dinosaurs in the shape of its skull, which had a ridge along the top that ran from between the eyes to the tip of the snout. There were also bumps above the eyes.

 

 

Carcharodontosaurus

Kar-KAR-oh-DONT-oh-SAW-rus

Shapr-toothed reptileSaurischua: Carnosauria

Early Cretaceous

North Africa

Carcharodontosarus was a giant 26-foot-lnog (8m) meat-eater. It is known from incoplete remains found in the Sahara area. These include giant sharp teeth, 5in (13cm) long. However, the fossils are not good enough to reconstruct the whole animal. It may have fed on plant-eaters that lived in the same area, as ouranosaurus.

 

 

Ceratosaurus

SER-a-toe-SAW-rus

Horned reptile

Saurischia: Carnosauria

Late Jurassic

Colorado, Oklahoma, and Utah, USA, and Tanzania

Ceratosaurus was one of the most unusual meat-eating dinosaurs. It was quite large: up to 20ft (6m) long, and it had massive sharp fangs. However, it had a horn on its nose. This was probably not to protect itself; it may have been used by males in fighting for a mate.

 

 

Daspletosaurus

Da-SPLEET-oh-SAW-rus

Frightul reptile

Saurischia: Carnosauria

Late Cretaceous

Alberta, Canada

Daspletosaurus was a fearsome huge 30-foot-long (9m) meat-eater. It had a huge head, deep jaws, and daggerlike teeth. It had powerful hind legs, each with three toes, but the arms were weak and had only two fingers each, Daspletosaurus could have attacked and eaten the duck-billed dinosaurs or ceratopsian that lived with it.

 

 

Dilophosaurus

Die-LOAF-oh-SAW-rus

Two-crested reptile

Saurischia: Carnosauria

Early Jurassic

Arizona

Dilophosaurus is the oldest well-known large meat-eating dinosaur. It is related to megalosaurus. The most amazing fact about which were shaped like a pair of hlaf dinners plates set up on edge and side by side. Dilophosautus had long sharp fangs and was 20ft (6m) long.

 

 

Dryptosaurus

DRIP-toe-SAW-rus

Wounding reptile

Saurischia: Carnosauria

Late Cretaceous

USA

Dryptosaurus was a meat-eater that lived all over North America. Many finds of odd teeth and jawbones have been designated as belonging to Dryptosaurus. At least 12 species have been described, and yet no one realy knows what it looked like. The only skeleton was collected in 1866 and nammed Laelaps by Edward D. Cope. One of the famous dinosaur collectors of the North American «bone wars». The name Laelaps was based on hunting dog from the ancienz Greek myth, and Cope had a model made that showed Laelaps flercely.leaping through the air to attack another dinosaur. Unfortuntrly, we cannot use that name because it had already been given to an insect.

 

 

Megalosaurus

MEG-a-low-SAW-rus

Big reptile

Saurischia: Carnosauria

Early Jurassic to early Cretaceous

Europe North Africa, Asia, South America

Megalosaurus was the first dinosaur to be named – in 1824. The teeth of Megalosaurus had long roots that fixed firmly into the jaw bone. The tops of the teeth were curved backward and flattened from side to side, and the back and front edges had jagged ridges, like the edge of a serrated knife. The hand had three fingers, and the foot four toes, each with a strong claw, and Megalosaurus have been described from rocks ranging in age over 100 million years. It is unlikely that one animal could have lived for so long, and many of the species have been based on very small bits of evidence that could belong to any meat-eating dinosaur.

 

 

Spinosaurus

SPINE-o-SAW-rus

Spiny reptile

Saurischia: Carnosauria

Late Cratecous

Niger, Egypt

Spinosaurus was a strange meat-eating dinosaur with a sail on its back. The sail was made from skin and it was held up by tall spines on the back of each vertebra of the backbone. Some of these spises were 6.5ft. (2m) high – taller than a human. Spinosaurus may have used its sail to control its body temperature: it could lose heat if it was too hot, or it could heat it if it was too cold. Spinosaurus had typical teeth for eating meat, but they were straight instead of curved. The animal was up to 40ft. (12m) long, and its closest relative may have been acrocanthosaurus.

 

 

Tarbosaurus

TAR-bo-SAW-rus

Terrible reptile

Saurischia: Carnosauria

Late Cratecous

Mongolia

Tarbosaurus was a lare meat-eater, an Asian relative of tyrannosaurus. It was about the same size as Tyrannosaurus, but less heavily built. Tarbosaurus had a longer skulland 27 large curved kinfelike teeth along its upper jaw. It had very short arms with only two fingers on each hand. Tarbosaurus was up to 45ft. (14m) long, and it could have fed on the duck-billed dinosaurs and armored dinosaurs that lived with it in Mongolia.

 

 

Tyrannosaurus

Tie-RAN-oh-SAW-rus

Tyrant reptile

Saurischia: Carnosauria

Late Cratecous

Alberta, Canada, and Montana, USA

Tyannosaurus may be the best-known dinosaur. It was probably the most frightening, and certainly one of the biggest, mea-eater that has ever lived. It was up to 50ft. (15m) long and 20ft. (6m) high. A person would hardly have reached its knee. Tyannosaurus had a massive head which was 5ft. (1.5m) long. The powerful jaws were lined with large sharp teeth. Single teeth were up to 7in. (18cm) long. This animal could probably swallow humans whole if it were around today.