According to different theories, we can estimate that for the larger mature species, it may have reached a mass bodyweight of 80 metric tons (80,000 kg). It took approximately 14 days to 64 days to completely replace a tooth. Sign up for our science newsletter! They are noted to have developed lengthy necks, up to 30 feet (9.1 meters), tree trunk legs, and relatively small heads. ● Alamosaurus- was one of the largest dinosaurs of North America that lived in New Mexico. Many of the sources listed this dinosaur as having the longest neck. The dinosaurs were discovered in Mongolia in part of the Gobi desert. It is also amazing to know that the weigh of a Sauropod’s heart was more than 200 kg (441 pounds), which is more than the weight of three normal human adult beings. Want more Science Trends? They could reach up 9 metres high - the same as two double-decker buses stacked on top of each other. As Sauropods were herbivores, the shape of their teeth was flatter or at least cone-shaped, used for grinding vegetation. “As soon as I saw it, I decided I was going to spend the rest of my life studying dinosaurs.” — Robert T. Bakker. Is CCl4 (Carbon Tetrachloride) Polar Or Nonpolar? ————————————————————————————————Related Dinosaur Articles You Might Also Be Interested In:Would A T-Rex Really Shake The Ground?What’s the Difference Between Dinosaurs and Dragons?How Would A T-Rex Get Up After Falling?————————————————————————————————. And third, for fighting with other Sauropods during the mating process. Their necks were so long they wouldn't have been able to lift more than its head above the water to breathe. Diplodocus is thought to be the longest known dinosaur. The length of the Brachiosaurus is estimated at around 20 to 21 m or 66 to 69 feet, and it’s weight estimated somewhere between 35 metric tons to 58 metric tons. ● Haplocanthosaurus- lived 152 to 155 million years ago. The Mamenchisaurus was a Sauropod dinosaur that lived in China. eval(ez_write_tag([[468,60],'adventuredinosaurs_com-large-mobile-banner-1','ezslot_3',114,'0','0'])); ● Opisthocoelicaudia- lived a late cretaceous period like 70 million years ago. The Brontosaurus excelsus is different from the Apatosaurus by having a higher neck and one that is less wide. The dinosaur was discovered in the Morrison Formation, a geological formation that covers what is now parts of Oklahoma, Wyoming, Utah, New Mexico and Colorado in the US. Most sauropods have necks about one third the length of their bodies. Science Trends is a popular source of science news and education around the world. The neck of the Brachiosaurus is believed to be composed of 13 long cervical vertebrae, and this long neck allowed it to reach vegetation that was possibly as high as 9 meters (30 feet) off the ground. They were quite small compared to their fellow species. Long neck dinosaurs are Sauropods, a species of dinosaur that lived in the Mesozoic Era. The lizard-foot Sauropod dinosaurs were the giants of the dinosaur family. It is estimated that the dinosaurs had a length of somewhere around 23 m or 75, and a weight of around 51 tons (at least for the largest species of the genus, C. supremus). The total length for them was 12 meters, and they got a total weight of about 14 tons. The fossil skeleton found in Sichuan, China. The Brachiosaurus that was found in Colorado, USA, was specifically named Brachiosaurus altithorax (meaning deep chest) by its full name. Arguably one of the most famous dinosaurs in the world, the Brachiosaurus lived during the Late Jurassic era around 154 to 153 million years ago. link to What Dinosaurs Ate Fish? (Source). They had more than 50 tons of weight, and they had their body length from 30 to 39 meters. Therefore, they declared that the Brontosaurus did not exist. Skeletons of these giant Brontosaurus dinosaurs were found in the 1800s, but there was some mixing of the skeletons of Brontosaurus and the Apatosaurus (meaning “deceptive-lizard”), a similar Sauropod species. Though still quite large compared to most animals today, the sauropod was small for members of the clade. GIANT 32 page Dinosaur Coloring Poster for classroom art. Photo Credit: Fossil of Therizinosaurus, Dinosaur Museum Aathal By Ghedoghedo CC BY-SA 3.0 Would you like to compare them? That brings us to the question of why did the Sauropods evolve such long necks? One of the most well-known Sauropod dinosaurs, the Brontosaurus (meaning “thunder-lizard”), has an interesting history that has just been resolved in recent years. They were 23-meter-long, and the weight of them was 51 tons. They are known that they have long necks for reaching out to the upper canopy of trees. Prove you're human, which is bigger, 2 or 8? The length of the Diplodocus neck in one of the most well-known fossils (Diplodocus carnegii found in Sheep Creek, Wyoming) had a neck that was at least 21 feet (6.5 meters) long. According to LiveScience (Source) https://www.livescience.com/27376-how-dinosaurs-grew-longest-necks.html, they have three possible theories. That's great to hear! When it comes to answering which Sauropod had the longest neck, there is no definite conclusion. Some Surprising Facts. Their prolonged neck served to help them eat vegetation from the tops of trees. Estimates of the specimens retrieved from the Morrison formation put the dinosaur at around 14.8 m or 50 feet long, and around 12.8 metric tons in weight. All Rights Reserved. The Surprising Fish Hunting Dinosaurs, link to What Was the Herbivore Dinosaur with Long Claws? However, when I hear “long neck dinosaurs,” my mind takes an entirely different track. Dreadnoughtus It was found in the Morrison formation alongside dinosaurs like Apatosaurus, Brachiosaurus, and Camarasaurus. ISSN: 2639-1538 (online), Photo: Slate Weasel via Wikimedia Commons, Public Domain, Apatosaurus specimen at Carnegie Museum. There is a preserved Saltasau egg displayed for visitors at Utah’s North American Museum of Ancient Life. Some Surprising Facts. (Armor, Weapons). The length of a Brachiosaurus neck could reach as much as 30 feet (xx meters), making the total length of the dinosaur (neck, body, and tail) up to 69 feet (21 meters). . We love feedback :-) and want your input on how to make Science Trends even better. The genus is lacking a skull for the specimens, with the best specimen being a fairly well-preserved skeleton lacking the neck and head. With the advancement of technology and recent improvements in the field of bioinformatics, many areas of research expand and develop.