| Dromaeosaurus Fossil range: Late Cretaceous | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 Dromaeosaurus | ||||||||||||||||||||
| Scientific classification | ||||||||||||||||||||
| ||||||||||||||||||||
| Species | ||||||||||||||||||||
D. Late Cretaceous (100mya - 65mya refers to the second half of the Cretaceous Period, named after the famous white Chalk cliffs of southern England Chordates ( Phylum Chordata) are a group of Animals that includes the Vertebrates together with several closely related Invertebrates Reptiles, or members of the class Reptilia are air-breathing Cold-blooded Vertebrates that have skin covered in scales as opposed to hair or feathers Saurischia (sɔːˈrɪskiə, from the Greek sauros ( σαυρος) meaning 'lizard' and ischion ( ισχιον) meaning 'hip joint' Theropods (ˈθɪərəpɒd theropoda /θiːˈrɒpədə/ 'beast feet' are a group of Bipedal Saurischian Dinosaurs Although they were primarily For the prehistoric gliding reptile see Coelurosauravus. Coelurosauria (sɨˌljʊərəˈsɔriə is defined as the clade containing all Theropod Dromaeosauridae is a family of Bird -like Theropod Dinosaurs They were small to medium-sized feathered Carnivores that flourished in the Dromaeosauridae is a family of Bird -like Theropod Dinosaurs They were small to medium-sized feathered Carnivores that flourished in the Barnum Brown ( February 12, 1873 - 1963) born February 12 1873 in Carbondale Kansas. Year 1922 ( MCMXXII) was a Common year starting on Sunday of the Gregorian calendar. In Biology, a species is one of the basic units of Biological classification and a Taxonomic rank. albertensis (type) |
Dromaeosaurus (pronounced /ˌdrɒmioʊˈsɔrəs/) was a genus of theropod dinosaur which lived during the Late Cretaceous period (Campanian), about 76 - 72 million years ago, in Alberta, Canada. Theropods (ˈθɪərəpɒd theropoda /θiːˈrɒpədə/ 'beast feet' are a group of Bipedal Saurischian Dinosaurs Although they were primarily Late Cretaceous (100mya - 65mya refers to the second half of the Cretaceous Period, named after the famous white Chalk cliffs of southern England The Campanian is a stage on the Geologic time scale occurring from 83 Alberta (ælˈbɝtə is one of Canada's prairie provinces. It became a province on September 1 1905 Country to "Dominion of Canada" or "Canadian Federation" or anything else please read the Talk Page The name means 'running lizard' and is derived from the Greek dromeus (δρομευς) meaning 'runner' and sauros (σαυρος) meaning 'lizard'.
Dromaeosaurus is surprisingly poorly known, although a cast of a complete mounted skeleton, prepared by the Tyrrell Museum, Alberta, Canada, appears in several museums throughout the world. The Royal Tyrrell Museum of Palaeontology (commonly known as the Royal Tyrrell Museum) is a popular Canadian tourist attraction and a leading center of palaeontological Its construction was made possible by knowledge of others of the group that have been discovered more recently.
Dromaeosaurus is known from a partial skull, foot fragments and ribs from Dinosaur Provincial Park, Alberta. Dinosaur Provincial Park is a World Heritage Site located about a two hours drive east of Calgary, Alberta, Canada or northeast of Several other bones, and dozens of isolated teeth, are also known.
Dromaeosaurus albertensis is the most complete specimen and it is apparent that this genus is even rarer than other small theropods. It was one of the first small theropods described based on reasonably good cranial material, and gives its name to its family.
Contents |
Description
Dromaeosaurus was a small vicious hunter, the size of a wolf, about 1. The grey wolf or gray wolf ( Canis lupus) also known as the timber wolf or simply wolf, is a Mammal of the order Carnivora 8 m (6 ft) in length and 15 kg (33 lb) in weight. Its mouth was full of sharp teeth. A sharp hooked claw on each foot was used to clamp down on its prey.
Dromaeosaurus had remarkably large eyes and excellent vision. It also probably had a good sense of smell and hearing. It had a curved flexible neck and its jaws were long and solidly built. The tail was flexible at the base but sheathed in a lattice of bony rods; this allowed it to be carried in a sharply upturned position. The sickle-like claws were an advantage over most of its victims. Research has shown that Dromaeosaurus most likely was feathered.
Characteristics
Dromaeosaurus differs from most other Dromaeosauridae in having a short, massive skull, a deep mandible, and robust teeth. Dromaeosauridae is a family of Bird -like Theropod Dinosaurs They were small to medium-sized feathered Carnivores that flourished in the In these respects Dromaeosaurus resembled the tyrannosaurs. Although only a few bones are known from the hindlimb, they indicate that Dromaeosaurus was a powerfully built animal. Exactly how Dromaeosaurus lived and what it ate are still open to speculation. The teeth tend to be more heavily worn than those of its relative Saurornitholestes, suggesting that its jaws were used for crushing and tearing rather than simply slicing through flesh. It is possible that Dromaeosaurus was more of a scavenger than other small theropods, or it may be that Dromaeosaurus relied more heavily on its jaws to dispatch its prey. It was probably better suited to tackling large prey than the more lightly built Saurornitholestes. Saurornitholestes ("lizard-bird thief" is a Genus of coyote-sized carnivorous Dromaeosaurid Dinosaur from the Upper Cretaceous
Relationships
The relationships of Dromaeosaurus are unclear. Although its rugged build gives it a primitive appearance, it was actually a very specialized animal. It is usually given its own subfamily, the Dromaeosaurinae; this group is thought to include Utahraptor, Achillobator, Adasaurus and perhaps Deinonychus. Utahraptor (meaning " Utah 's predator" The Type specimen is currently housed at the College of Eastern Utah, although Brigham Young Achillobator (əˌkɪloʊˈbeɪtɔr "Achilles' warrior/hero" is a Genus of Dromaeosaurid Theropod Dinosaur from the late Adasaurus (ˌɑːdəˈsɔrəs (AH-dah-SAWR-us "Ada's lizard" is a Genus of Dromaeosaurid Theropod Dinosaur from Deinonychus (daɪˈnɒnikəs ( Greek δεινος, 'terrible' and ονυξ/ονυχος, 'claw' was a Genus of carnivorous However, the relationships of dromaeosaurs are still in a state of flux. "Dromaeosaurus Morphotype A" is the designation given to a series of unusual, ridged dromaeosaur teeth from Alberta. These teeth probably do not belong to Dromaeosaurus, although it is unclear from what animal they do come.
In popular culture
Dromaeosaurus are featured in Walking with Dinosaurs, stalking Torosaurus and stealing eggs from Tyrannosaurus. Walking with Dinosaurs was a six-part Television series produced by the BBC, narrated by Kenneth Branagh, and first aired in the UK Torosaurus (meaning "perforated lizard" was a Genus of ceratopsid Dinosaur. Tyrannosaurus ( or, meaning 'tyrant lizard' is a Genus of Theropod Dinosaur.
Gallery
 |  |  |  |
References
- Dixon, Dougal (2006). The Illustrated Encyclopedia of Dinosaurs (Lorenz Books): 200-201.
- Matthew, W. D. and B. Brown (1922). The family Deinodontidae, with notice of a new genus from Cretaceous of Alberta. Bulletin of the American Museum of Natural History 46: 367-385.
- Colbert, E. and D. A. Russell (1969). The small Cretaceous dinosaur Dromaeosaurus. American Museum Novitates 2380: 1-49.
- Currie, P. J. , K. J. Rigby, et al. (1990). Theropod teeth from the Judith River Formation of southern Alberta, Canada. Dinosaur Systematics: Perspectives and Approaches. P. J. Currie and K. Carpenter. Cambridge, Cambridge University Press: 107-125.
- Currie, P. J. (1995). New information on the anatomy and relationships of Dromaeosaurus albertensis (Dinosauria: Theropoda). Journal of Vertebrate Paleontology 15(3): 576-591.
Dapyx Software network: MP3 Explorer | Ebook Manager | Zenithic