Wikia

Fossil Wiki

Home

6,764pages on
this wiki
Talk4
Official policies
Helping out
Deinonychus BW

Dromaeosaurids are a family of extinct bird-like theropod dinosaurs. They were small to medium-sized, feathered carnivores that flourished during the Cretaceous Period. In informal usage they are often called "raptors" (after Velociraptor), a term popularized by the film Jurassic Park and have become iconic for their enlarged "sickle claw" on the second toe. The name Dromaeosauridae means 'running lizards', from Greek dromeus (δρομευς) meaning 'runner' and sauros (σαυρος) meaning 'lizard'. Dromaeosaurid fossils have been found in North America, Europe, North Africa, Japan, China, Mongolia, Madagascar, Argentina, and Antarctica. They first appeared in the mid-Jurassic Period (Bathonian stage, 167 million years ago) and survived until the end of the Cretaceous (Maastrichtian stage, 65.5 ma), existing for over 100 million years, up until the Cretaceous-Paleogene extinction event. The presence of dromaeosaurs as early as the Middle Jurassic has been confirmed by the discovery of isolated fossil teeth, though no dromaeosaurid body fossils have been found from this epoch. There is also a large body of evidence showing that dromaeosaurids were covered in feathers. Some dromaeosaurid fossils preserve long, pennaceous feathers on the hands and arms (remiges) and tail (rectrices), as well as shorter, down-like feathers covering the body. (Read more...)


Recently promoted: Protoavis  • Cloudinidae  • Small shelly fauna

Did you know Did you know...                                                      Suggest an article

From The Fossil Wiki's newest articles:

Acrocanthosaurus head BW

Geological hammer Paleontologist of the Month

Paul Sereno2

Paul Sereno is an American paleontologist who is the discoverer of several new dinosaur species on several continents. He has conducted excavations at sites as varied as Inner Mongolia, Argentina, Morocco and Niger. He is a professor at the University of Chicago and a National Geographic "explorer-in-residence." Sereno's most widely publicized discovery is that of a nearly complete specimen of Sarcosuchus imperator (popularly known as SuperCroc) at Gadoufaoua in the Tenere desert of Niger. Other major discoveries include Eoraptor - the oldest known dinosaur fossil, Jobaria, the first good skull of Carcharodontosaurus iguidensis, Afrovenator, Suchomimus and the African pterosaur. (Read more...)

In the news2009 In the News                                Suggest a news item

Tianyuraptor NT

Random Featured Quote (Refresh)


"The head was as long or longer than that of a fully grown grizzly bear, and the jaws were deeper in proportion to their length. The muzzle was shorter and deeper than that of a bull-dog. The teeth were all sharp cylindric fangs, smooth and glistening, and of irregular size. At certain distance in each jaw they projected three inches above the gum, and were sunk one inch into the jaw margin, being thus as long as the fangs of a tiger, but more slender. Two such fangs crossed each other on each side of the middle of the front. Besides the smaller fishes, the reptiles no doubt supplied the demands of his appetite."
E.D. Cope describing the head and jaws of the giant prehistoric fish Xiphactinus.


Community                                           AboutFAQThe Field Site


==Explore the prehistoric world==
4567.17 Ma - Precambrian era - 542 Ma
3800 Ma - Archean eon - 2500 Ma 2500 Ma - Proterozoic eon - 542 Ma
3800 Ma - Archean eon - 2500 Ma 2600 Ma - Paleoproterozoic era - 1600 Ma 1600 Ma - Mesoproterozoic era - 1000 Ma 1000 Ma - Neoproterozoic era - 542 Ma
Eoarchean Paleoarchean Mesoarchean Neoarchean Siderian Rhyacian Orosirian Statherian Calymmian Ectasian Stenian Tonian Cryogenian Ediacaran


542 Ma - Phanerozoic eon - Present
542 Ma - Paleozoic era - 251 Ma 251 Ma - Mesozoic era - 65 Ma 65 Ma - Cenozoic era - Present
Cambrian Ordovician Silurian Devonian Carboniferous Permian
Triassic
Jurassic
Cretaceous
Paleogene Neogene Quaternary

Featured pictures Random Featured Image (Refresh)

Naturkundemuseum Berlin - Archaeopteryx - Eichstätt

The Berlin Specimen (HMN 1880) of Archaeopteryx was discovered in 1876 or 1877 on the Blumenberg near Eichstätt, Germany, by Jakob Niemeyer. He exchanged this precious fossil for a cow, with Johann Dörr. Placed on sale in 1881, with potential buyers including O.C. Marsh of Yale University's Peabody Museum, it was bought by the Humboldt Museum für Naturkunde, where it is now displayed. The transaction was financed by Ernst Werner von Siemens, founder of the famous company that bears his name. Described in 1884 by Wilhelm Dames, it is the most complete specimen, and the first with a complete head. Once classified as a new species, A. siemensii, a recent evaluation supports the A. siemensii species definition.

Earth-ScanPaleontology links

Join us in exploring the prehistoric world

Around Wikia's network

Random Wiki