Dinosaur - Warm-blooded?. A vigorous debate on the subject of temperature regulation in dinosaurs has been ongoing since the 1960s. Originally, scientists broadly disagreed as to whether dinosaurs were capable of regulating their body temperatures at all. More recently, dinosaur endothermy has become the consensus view, and debate has focused on the mechanisms of temperature regulation. After dinosaurs were discovered, paleontologists first posited that they were ectothermic creatures: "terrible lizards" a ...

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Dinosaur, Dinosaur - What is a dinosaur?, Dinosaur - Definition, Dinosaur - Size, Dinosaur - Behavior, Dinosaur - Study of dinosaurs, Dinosaur - Classification, Dinosaur - Order Saurischia, Dinosaur - †Order Ornithischia, Dinosaur - Evolution, Dinosaur - Areas of debate, Dinosaur - Warm-blooded?, Dinosaur - Feathered dinosaurs and the bird connection, Dinosaur - Evidence for Cenozoic dinosaurs, Dinosaur - Bringing dinosaurs back to life, Dinosaur - Discovery of probable soft tissue from dinosaur fossils, Dinosaur - Extinction theories, Dinosaur - Asteroid collision, Dinosaur - The Oort cloud, Dinosaur - Environment changes, Dinosaur - History of discovery, Dinosaur - In popular culture, Dinosaur - Religious points of view, Dinosaur - Notes and references, Dinosaur - General references

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Dinosaur, Dinosaur - What is a dinosaur?, Dinosaur - Definition, Dinosaur - Size, Dinosaur - Behavior, Dinosaur - Study of dinosaurs, Dinosaur - Classification, Dinosaur - Order Saurischia, Dinosaur - †Order Ornithischia, Dinosaur - Evolution, Dinosaur - Areas of debate, Dinosaur - Warm-blooded?, Dinosaur - Feathered dinosaurs and the bird connection, Dinosaur - Evidence for Cenozoic dinosaurs, Dinosaur - Bringing dinosaurs back to life, Dinosaur - Discovery of probable soft tissue from dinosaur fossils, Dinosaur - Extinction theories, Dinosaur - Asteroid collision, Dinosaur - The Oort cloud, Dinosaur - Environment changes, Dinosaur - History of discovery, Dinosaur - In popular culture, Dinosaur - Religious points of view, Dinosaur - Notes and references, Dinosaur - General references

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Information on dinosaurs is obtained from a widely varying fields of study which include Physics, Chemistry, Biology, and the Earth Sciences (which also includes Paleontology). Activities include the discovery, reconstruction and conservation of dinosaur fossils and the interpretation of those fossils which enables us to better understand the evolution, classification and behavior of dinosaurs. Dinosaur - Classification. ...

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Dinosaur, Dinosaur - What is a dinosaur?, Dinosaur - Definition, Dinosaur - Size, Dinosaur - Behavior, Dinosaur - Study of dinosaurs, Dinosaur - Classification, Dinosaur - Order Saurischia, Dinosaur - †Order Ornithischia, Dinosaur - Evolution, Dinosaur - Areas of debate, Dinosaur - Warm-blooded?, Dinosaur - Feathered dinosaurs and the bird connection, Dinosaur - Evidence for Cenozoic dinosaurs, Dinosaur - Bringing dinosaurs back to life, Dinosaur - Discovery of probable soft tissue from dinosaur fossils, Dinosaur - Extinction theories, Dinosaur - Asteroid collision, Dinosaur - The Oort cloud, Dinosaur - Environment changes, Dinosaur - History of discovery, Dinosaur - In popular culture, Dinosaur - Religious points of view, Dinosaur - Notes and references, Dinosaur - General references

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Dinosaurs are vertebrate animals that range from reptile-like to bird-like.[1] Dinosaurs dominated the terrestrial ecosystem for over 160 million years, first appearing around 230 million years ago. 65 million years ago, at the end of the Cretaceous period, all non-avian dinosaurs became extinct. Dinosaurs still exist today in the line of birds (avian dinosaurs). Knowledge about dinosaurs is derived from both fossil and non-fossil records, includ ...

Including:

Dinosaur - What is a dinosaur?
Dinosaur - Definition Dinosaur - Size Dinosaur - Behavior
Dinosaur - Study of dinosaurs
Dinosaur - Classification Dinosaur - Order Saurischia Dinosaur - †Order Ornithischia Dinosaur - Evolution
Dinosaur - Areas of debate
Dinosaur - Warm-blooded? Dinosaur - Feathered dinosaurs and the bird connection Dinosaur - Evidence for Cenozoic dinosaurs Dinosaur - Bringing dinosaurs back to life Dinosaur - Discovery of probable soft tissue from dinosaur fossils
Dinosaur - Extinction theories
Dinosaur - Asteroid collision Dinosaur - The Oort cloud Dinosaur - Environment changes
Dinosaur - History of discovery Dinosaur - In popular culture Dinosaur - Notes

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Dinosaurs are vertebrate animals that range from reptile-like to bird-like.[1] Dinosaurs dominated the terrestrial ecosystem for over 160 million years, first appearing around 230 million years ago. 65 million years ago, at the end of the Cretaceous period, all non-avian dinosaurs became extinct. Dinosaurs still exist today in the line of birds (avian dinosaurs). Knowledge about dinosaurs is derived from both fossil and non-fossil records, includ ...

Including:

Dinosaur - What is a dinosaur?
Dinosaur - Size Dinosaur - Behavior
Dinosaur - Study of dinosaurs
Dinosaur - Classification Dinosaur - Order Saurischia Dinosaur - †Order Ornithischia Dinosaur - Evolution
Dinosaur - Areas of debate
Dinosaur - Warm-blooded? Dinosaur - Feathered dinosaurs and the bird connection Dinosaur - Evidence for Cenozoic dinosaurs Dinosaur - Bringing dinosaurs back to life Dinosaur - Discovery of probable soft tissue from dinosaur fossils
Dinosaur - Extinction theories
Dinosaur - Asteroid collision Dinosaur - The Oort cloud Dinosaur - Environment changes
Dinosaur - History of discovery Dinosaur - In popular culture Dinosaur - Notes

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Tyrannosaurus rex (ty-RAN-o-sawr-us) meaning "tyrant reptile" because of its size and large teeth and claws (Greek tyrannos = tyrant + sauros = reptile), also known colloquially as T. rex and The King of the Dinosaurs, was a giant carnivorous theropod dinosaur from the Upper Maastrichtian, the last stage of the Cretaceous period, 65–66 million years ago. Its fossil remains are relatively rare; as of 2005 only 30 specimens had been found^Including:

Tyrannosaurus rex - Discovery and Classification Tyrannosaurus rex - Characteristics Tyrannosaurus rex - Biology
Tyrannosaurus rex - Feathers Tyrannosaurus rex - Evidence for Scavenging Tyrannosaurus rex - Evidence for Hunting Tyrannosaurus rex - Evidence for Running Tyrannosaurus rex - Evidence for Walking Tyrannosaurus rex - Ecological implications
Tyrannosaurus rex - The World of Tyrannosaurus rex Tyrannosaurus rex - Individual specimens Tyrannosaurus rex - Other tyrannosaurids
Tyrannosaurus rex - Synonymies
Tyrannosaurus rex - Other giant theropods Tyrannosaurus rex - Notes

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1866 Sisyphus (sis'-ə-fəs) is an Apollo asteroid which, at approximately 10 km in diameter, is the largest of the Earth-crossing asteroids. It is comparable in size to the Chicxulub object whose impact killed off the dinosaurs. Sisyphus was discovered in 1972 by Paul Wild, and named after the Sisyphus of Greek mythology. ...

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Coprolites are fossilized feces, or animal dung. They form an important class of objects studied in the field of paleontology. The name is derived from the Greek words kopros meaning "dung" and lithos meaning "stone". Coprolites are also trace fossils and vary in size from the small fecal pellets of a sea-snail to the large droppings of crocodiles, dinosaurs, or mammals. Typical sizes vary from less than 5 mm (0.2") to 5 cm (2"), although they may exceed 30 cm (12") in length. There is a large variety of shapes: cigar-sh ...

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C. zoui Ji, Currie, Norell & Ji, 1998 C. dongi Zhou & Wang, 2000 Caudipteryx was a genus of small, peacock-sized Early Cretaceous theropods (members of Theropoda, the group of typically carnivorous dinosaurs) that lived about 125 million years ago. Its most remarkable feature was its feathers. Two species have been named, C. zoui and C. dongi. Caudipteryx fossils were first discovered in the Liaoning Province of ...

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Conservation status: Fossil Coelophysidae Coelophysoids were common dinosaurs of the Late Triassic and Early Jurassic periods. They were widespread geographically, probably living on all continents. Coelophysoids were all slender, carnivorous forms with a superficial similarity to the coelurosaurs, which they were formerly classified with, and some species had delicate cranial crests. Sizes range from about 1 to 6 m in length. It is unknown what kind of external covering coelophysoids had, and ...

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Coelophysoidea - Classification

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Disney's Animal Kingdom is a theme park at Walt Disney World Resort in Florida. It opened on April 22, 1998. Covering more than 500 acres (2 km²) in size, it is themed around live animals and extinct dinosaurs. The park's advertising makes frequent use of the made-up word "nahtazu", pronounced "not a zoo," to emphasize that it offers more than animal displays and that the it aims for more of an open and free 'safari' feel in regard to the animals. Disney's Animal Kingdom - Attractions. The park is m ...

Including:

Disney's Animal Kingdom - Attractions
Disney's Animal Kingdom - Discovery Island Disney's Animal Kingdom - Camp Minnie-Mickey Disney's Animal Kingdom - Africa Disney's Animal Kingdom - Rafiki's Planet Watch Disney's Animal Kingdom - Asia Disney's Animal Kingdom - DinoLand U.S.A.
Disney's Animal Kingdom - Trivia

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Archaeopteryx was similar in size and shape to a magpie, with short, broad wings and a long tail. The feathers resemble those of living birds, but Archaeopteryx was rather different from any bird we know of today: it had jaws lined with sharp teeth, three fingers ending in curving claws, and a long bony tail. Archaeopteryx is a powerful piece of evidence that birds evolved from dinosaurs. The skeleton is most similar to the dinosaurs of the families Dromaeosauridae and Troodontidae. However, it is not believed to ...

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Archaeopteryx, Archaeopteryx - Primitive bird, Archaeopteryx - Fly or hop?, Archaeopteryx - Taxonomy

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Hylaeosaurus lived about 135 million years ago, in the Valanginian to Berriasian ages of the early Cretaceous. Gideon Mantell originally estimated that the Hylaeosaurus was about 25 feet (7.5 meters) long, or about half the size of the other two original dinosaurs, the Iguanodon and the Megalosaurus. Modern estimates range from 3 to 6 meters (10 to 20 feet) in length. It is a fairly typical armored dinosaur, with three long spines on its shoulder, two at the hips, and three rows of armor running down its ba ...

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Hylaeosaurus, Hylaeosaurus - Description and environment, Hylaeosaurus - Classification, Hylaeosaurus - History

Read more here: » Hylaeosaurus: Encyclopedia II - Hylaeosaurus - Description and environment

Archaeopteryx was similar in size and shape to a magpie, with short, broad wings and a long tail. The feathers resemble those of living birds, but Archaeopteryx was rather different from any bird we know of today: it had jaws lined with sharp teeth, three fingers ending in curving claws, and a long bony tail. Archaeopteryx is a powerful piece of evidence that birds evolved from dinosaurs. The skeleton is most similar to the dinosaurs of the families Dromaeosauridae and Troodontidae. Although it is probably close t ...

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Archaeopteryx, Archaeopteryx - Primitive bird, Archaeopteryx - Fly or hop?, Archaeopteryx - Taxonomy

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Some of the largest animals ever to have existed have now died out. Most of them dinosaurs, the creatures grew to enormous sizes. The evidence of their size is shown by their fossilised remains, with the entire skeletons of many species being discovered and reconstructed. Largest organism - Complete skeletons. The tallest and heaviest dinosaur known from a complete skeleton is the Brachiosaurus (now Giraffatitan) which was discovered in Tanzania between 1907–1912, and is now mounted in the ...

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Largest organism, Largest organism - Living animals, Largest organism - Mammals Mammalia, Largest organism - Birds, Largest organism - Reptiles, Largest organism - Fish, Largest organism - Cnidaria, Largest organism - Invertebrates, Largest organism - Crustaceans, Largest organism - Extinct animals, Largest organism - Complete skeletons, Largest organism - Incomplete skeletons, Largest organism - Other groups, Largest organism - Plants, Largest organism - Other kingdoms

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Monster - Pre-World War II. During the age of silent movies, representations of monsters were the size of a person played by an actor in a costume: Frankenstein's monster, the Golem, and vampires are the most well-known ones. The film Siegfried featured a dragon that was a giant puppet on tracks. A few dinosaurs were presented by stop-motion animated models, something that was carried over into RKO's King Kong< ...

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Monster, Monster - Monsters in history, Monster - Social concept, Monster - Religion and mythology, Monster - Monsters in literature, Monster - Monsters in philosophy, Monster - Monsters in cinema, Monster - Pre-World War II, Monster - Post World War II, Monster - Miscellaneous

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Three memorabilia items often seen in the cave are a defunct full-size mechanical Tyrannosaurus Rex, and an equally large U.S. penny and a Joker playing card. The origins of these trophies are explained in Batman #256: the T-Rex comes from an adventure on "Dinosaur Island;" the penny is a trophy from Batman's encounter with a penny-obsessed villain named The Penny Plunderer (in World's Finest Comics #30, 1947). Other "keepsakes" in the cave include Two-face's original coin, Deathstroke's sword, the shroud of the Vampiri ...

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Batcave, Batcave - Use, Batcave - Design, Batcave - Memorabilia, Batcave - Other Batcaves, Batcave - Other Media

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Originating from within the bactritoid nautiloids, Ammonites first appeared in the Late Silurian to Early Devonian (~400 million years ago) and became extinct at the close of the Cretaceous along with the dinosaurs (65 million years ago). The classification of ammonites is based in part on the ornamentation and structure of the septa comprising their shells' gas chambers; by these and other characteristics we can divide this subclass into three orders and eight known suborders. While nearly all nautiloids show gently curving sutures, the amm ...

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Ammonite, Ammonite - Classification, Ammonite - Life, Ammonite - Shell anatomy and diversity, Ammonite - Basic shell anatomy, Ammonite - Sexual dimorphism, Ammonite - Variations in shape, Ammonite - The aptychus, Ammonite - Size, Ammonite - Ammonite distribution, Ammonite - Trivia, Ammonite - References and further reading

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The typical plesiosaur had a broad body and a short tail. They retained their ancestral two pairs of limbs, which evolved into large flippers. Plesiosaurs evolved from the earlier nothosaurs, who had a more crocodile-like body; major types of plesiosaur are primarily distinguished by head and neck size. As a group, the plesiosaurs were the largest aquatic animals of their time, and even the smallest were about 2 m (6.5 ft) long. They grew to be considerably larger than the largest giant crocodiles, and were bigger than their ...

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Plesiosaur, Plesiosaur - Description, Plesiosaur - Behavior, Plesiosaur - Families, Plesiosaur - Classification and history, Plesiosaur - Recent discoveries, Plesiosaur - In fiction, Plesiosaur - Contemporary living dinosaurs — myths or truths?

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During the movie's production, the effects supervisors acknowledged that the Velociraptors featured in the movie were sized more like the larger Deinonychus. However, during the filming of the movie, paleontologists came across a larger dromaeosaurid species named Utahraptor, and the larger raptors remained. The procompsognathus in the novel secrete a venom described as similar to that of a cobra, although more primitive. This ability ...

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Jurassic Park, Jurassic Park - Plot summary novel, Jurassic Park - Movie, Jurassic Park - Changes from the Novel, Jurassic Park - Continuity Separation, Jurassic Park - Original ending, Jurassic Park - Dinosaurs Featured, Jurassic Park - Biological issues, Jurassic Park - Other Issues, Jurassic Park - Biotechnological background, Jurassic Park - Notes, Jurassic Park - Video games, Jurassic Park - Music

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