China National Space Administration launched its 300th Long March mission last week. Long March 3B rocket launched on March 10 that took off from Xichang…
Continuing our range of top 10, today we are going to call your attention by this topic; top 10 biggest dinosaurs. Dinosaurs are a group of reptiles of the clade Dinosauria. They first appeared during the Triassic period, between 243 and 233.23 million years ago, although the exact origin and timing of evolution of dinosaurs remain mystery for scientists. Dinosaurs can therefore be divided into avian dinosaurs, or birds. Between the Tyrannosaurus Rex, Giganotosaurus and Titanoceratops, these prehistoric creatures may be extinct animals, but they can still be scary big dinosaurs.
When it was first named as a new species in 1975, scientists estimated that the largest Quetzalcoatlus fossils came from an individual with a wingspan as large as 15.9 m (52 ft). This is considered as one of the biggest dinosaurs.
It is estimated that the Gigantoraptor’s length is 8 meters (26 ft) and the weight at 1400 kilogrammes. In 2010, Gregory S. Paul even gave an estimate of two tonnes (2.2 tons).
The skeleton has a reconstructed skull measuring 2.65 meters (8.7 ft) long, which makes it an easy candidate for the longest skull of any land vertebrate. With an estimated weight of 6.55 tonnes (6.45 long tons; 7.22 short tons) and length of 6.8 meters (22.3 ft), Titanoceratops can compare to the giant sizes of Torosaurus and Triceratops.
The generic name is a combination of the Latin magnus, “large”, and the first name of Paul G. Haaga, Jr., the president of the board of trustees of the Los Angeles County Museum of Natural History. Its size was estimated by its original describer as between 15 m (49.2 ft) and 16.5 m (54.1 ft) long, with a weight of up to 23 metric tons (25.4 tons). So, it is one of the biggest dinosaurs.
- Tyrannosaurus Rex
Tyrannosaurus Rex is called simply T. rex or T-Rex; it is one of the most well-represented of the large theropods. The most complete specimen measures up to 12.3 m (40 ft) in length, up to 3.66 meters (12 ft) tall at the hips, and according to most modern estimates 8.4 metric tons (9.3 short tons) to 14 metric tons (15.4 short tons) in weight.
Paralititan lived between 99.6 and 93.5 million years ago, which was a giant titanosaurian sauropod dinosaur genus. So its exact size is difficult to estimate, however, the complete right humerus measured 1.69 meters (5.54 ft) long, which at the time of discovery was the longest known in a Cretaceous sauropod.
Estimates for the most complete specimen range from a length of 12 to 13 m (39 to 43 ft), a skull 1.53 to 1.80 m (5.0 to 5.9 ft) in length, and a weight of 4.2 to 13.8 t (4.6 to 15.2 short tons).
Estimates based on measurements of the known parts of the skeleton suggest that the only known individual of Dreadnoughtus schrani was approximately 26 meters (85 ft) long and stood about 2 stories tall.
Spinosaurus is considered as one of the giant and biggest dinosaurs. It is estimated between 12.6–18 meters (41–59 ft) in length and 7 to 20.9 tonnes (7.7 to 23.0 short tons) in weigh.
Argentinosaurus is a genus of titanosaur sauropod dinosaur first discovered by Guillermo Heredia in Argentina. It is among the largest known dinosaurs therefore it is the first place in top 10 biggest dinosaurs. Gregory S. Paul estimated Argentinosaurus at between 30–35 meters (98–115 ft) in length and with a weight of up to 80–100 tonnes (88–110 short tons).
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