a Cast of the skeleton of the predatory dinosaur Canonica that lived over 140 million years ago in North America, is one of the most interesting exhibits Biological Museum named after K. A. Timiryazev. This species of lizard was opened by John Ostrom in the mid-twentieth century and its discovery has become the main palaeontological sensation of the century. History of discovery Canonica — in joint material mos.ru and the Agency “Moscow”.
the First remains Canonica found an American who was mistaken for a related tenontosaurus lizard.
skeleton for a long time kept at the American Museum of natural history. In the beginning of 1960-x years, brown showed their Yale University student. Four years later, Ostrom led an expedition to the vicinity of Montana, where he found a few hundred bones belonging to different species of dinosaurs. Acute collect a standard sample of two feet and compared it to the fossils that are found brown. The scientist came to the conclusion that they belong to one and the same species.
a paleontologist is given a name, and antirrhopus translates from Latin as “balance, balance”.
Dannii existed in the mid-Cretaceous period of the Mesozoic era (115-98 million years ago). They belong to the family of dromaeosaurid, the theropod suborder. The closest relatives of predators (“fast hunters”), who lived in Asia.
Based on the samples found by Astromom and other paleontologists, the scientists came to the conclusion that Dannii was small, but about three meters in length.
the forelimbs and hind limbs of dinosaurs were three-toed. The one had a Crescent shape located on the second finger of the hind limbs. The claw was moving, walking bulging up. The size and extent of curvature of the claw each individual was different. Ostrom suggested that this could be related to the gender or age of the dinosaur.
Canonici, most likely, was lizards in feathers — to such conclusion came the John Ostrom, after they compared the bones of the forelimbs of a lizard with a bird. Studies have shown that their structure is very similar. Besides, close relatives of the Raptor — microraptor and VelociRaptor — by the characteristic marks on the fossils, scientists have also established the presence of a covering of feathers.
Acute also suggested that some dinosaurs might be, their number, the scientist took and deinonychus. Only warm-blooded animals characterized by the presence of feather or hair.
most Likely, feathered dinosaurs hunted raises��loadnig. Such conclusion scientists have made noticing a pattern: skeletons deinonychus was found with the remains of herbivores. John Ostrom suggested that these dinosaurs hunted in packs, one 70-pound predator would not be able to cope with tenontosaurus, weighing more than a ton.
the skeletons of younger individuals was discovered the bite marks of other dogs, which might indicate.
Despite the strong jaw, the force of the bite Canonica was relatively weak, so the main weapon in the attack on the victim was a Crescent-shaped claw. Attacking prey, dinosaurs have crushed her with his body, and claws helped her hold tightly. The victim was eating while she was still alive. Like many predators, the raptors did not hesitate, and carrion.
Hunting herbivores, Dannii larger predators, such as acrocanthosaurus.
the Iconic Steven Spielberg film.
the fact that in the process of writing the book, Crichton repeatedly met with John Astromom to discuss the appearance and habits of Canonica to create a credible image. But in the end, the writer settled on the name “VelociRaptor”, saying that “terrible claw” sounds, in contrast to the selected “fast hunter”, but the nature and habits of dinosaurs in the novel and in its film adaptation belong to deinonychus.
Developers graphics of the movie “Jurassic Park” when creating the image the”VelociRaptor” is also turned to the works Stroma, in the end, the dinosaurs in the movie was a cross between Asian and American dinosaurs.
Often in science museums exhibited is not genuine dinosaur skeletons, but their exact copies — casts. To make them, with fossils removed, which then is filled with special plastic. Copies of weigh much less, are easier to work with, assembling the skeleton, and museums around the world can easily share copies of the originals stored in their funds.
In the early 1970-ies of John Sharp sent casts of a considerable part of the elements of the skeleton Canonica stored at the American Museum of natural history in new York, V. the Missing parts of the skeleton was recovered by members of the Institute: a fully reconstructed skull, a partial pelvis and some limb bones.
it is Interesting that the skeleton Canonica exhibited in new York Museum, partially reconstructed. The skeleton of this dinosaur composed entirely of fossil bones, now.
for the opened in 2002 the permanent exhibition “the Development of life on Earth” in the Biological Museum of K. A. Timiryazev cooperation��and Paleontological Museum made a cast of the reconstructed skeleton Canonica. He now is in the exhibition.
