วันศุกร์ที่ 30 พฤศจิกายน พ.ศ. 2555

Carnotaurus

CARNOTAURUS Predator Big Bull UHA Mini Figure Model

Carnotaurus compared to its distinct bull-like horns (Latin Carno [carnis] = meat + bull = bull) was a large predatory dinosaur. Only one species, Carnotaurus has been described.
Carnotaurus lived in Patagonia, Argentina (La Colonia Formation) during the late Cretaceous Maastrichtian and bell. It was developed by Joseph Bonaparte, who has uncovered many other South American dinosaurs discovered.

Description
Carnotaurus was a large carnivore, about 8 meters (26 feet) in length, with a weight of 1488 kg and 2626 kg (1.6 to 2.9 short tons), depending on the estimation method. The most distinctive features of Carnotaurus are the two thick horns above the eyes, and the extremely short forelimbs with four basic numbers, even if only half of it ends in finger bones, while the fourth was splint-like and can be an external push to have. "'The same fingers were fused and immobile, and lacked claws. And' thanks to its unusually long neck (compared to abelisaurs others), and its small head with box-shaped jaws. The eyes of Carnotaurus confronts us, resulting in a Dinosaur unusual and may indicate binocular vision and depth perception.
It is a contrast between the deep confusion, Carnotaurus' sturdy-looking skull and its low, thin lower jaw. Now, no one has what it may mean working on their feeding methods.

A single nearly complete skeleton including impressions of skin along almost the entire right side, showing Carnotaurus lacked springs, in contrast with the more advanced theropods coelurosaurian (see also feathered dinosaurs) have been described. On the contrary, the skin with the series of bumps, which become larger towards the spine is lined.

Discovery and Classification
Carnotaurus was in the province of Chubut, Argentina, found in 1985 by paleontologist Joseph F. Bonaparte. His remains were in the sediments of La Colonia Formation. It mainly complete skeleton has been found missing, only the distal end of the tail and the last part of the lower limbs. It was rare to find an impression due to its extended skin. The sample was. Farm "Pocho Sastre" near Bajada Moreno, Telsen department, Chubut, Argentina, sediment collected at the bottom of La Colonia Formation, Upper Cretaceous (Campanian-Maastricht), about 75 million years The holotype of Carnotaurus is filed the Argentine Museum of Natural Sciences Bernardino Rivadavia ', where you can see a replica.
The species is known only C. sastrei. His next of kin Aucasaurus (Argentina), Majungasaurus (Madagascar) and Rajasaurus (India). These dinosaurs form the subfamily within Abelisauridae Carnotaurinae family. Within the subfamily are Carnotaurinae Carnotaurus and Aucasaurus closely related and both genders are placed in the root Carnotaurini. The results show that these were the dominant predators in the Late Cretaceous of Gondwana, and instead of carcharodontosaurids occupy the ecological niche of tyrannosaurids in the northern continents full. In 2008, Channel JI et al. proposed a cladogram with a focus on carnotaurines from South America.
CARNOTAURUS Big Bull Predator
คาร์โนทอรัส ค้นพบที่ทุ่งราบพาร์ตาโกเนียของอาร์เจนตินา มีเขาอยู่บนหัว 2 เขา เป็นลักษณะที่พิเศษของคาร์โนทอรัส ชื่อของมันมีความหมายว่ากิ้งก่ากระทิง ขนาดประมาณ 7.5 เมตร อาศัยอยู่ในยุคครีเทเชียสตอนปลายเมื่อประมาณ 75-80 ล้านปีก่อน

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