Dromaeosauridae
grrlscientist | December 18, 2008tags: Austroraptor cabazai, dinosaurs, Dromaeosauridae, birds, fossils, taxonomy, evolution
The newly unveiled Austroraptor cabazai (left) attacks a juvenile sauropod dinosaur in an artist's interpretation.
The giant raptor, found in Argentina, measured between 16.5 and 21 feet (5 to 6.5 meters) long, making it one of the largest raptors to roam Earth 70 million years ago, a new study finds.
A dramatic new carnivorous dinosaur that was bigger than a car was unveiled yesterday in public at the Museo Argentino de Ciencias Naturales (the Argentine, or Bernardino Rivadavia, Museum of Natural…
grrlscientist | September 24, 2007tags: researchblogging.org, velociraptor, Dromaeosauridae, dinosaur, feathers, paleontology, evolution
Velociraptor skull.
Velociraptors were small dinosaurs, weighing only about 15kg and approximnately 1.5m long.
Image: M. Elison, AMNH. [larger view]
According to a research paper that was published late last week, the Velociraptor probably had feathers. A closer look at a fossil Velociraptor ulna (forearm) that was found in Mongolia in 1998 revealed a series of small bumps along its length. These bumps are known as "quill knobs" because they are found in most modern birds where they…