Dinosaurs are a group of reptiles that dominated on the Earth for more than 140 million years. The shapes of these animals were all different and were ranges of some like giant Spinosaurus and chicken-sized Micro raptors.
They were able to survive in a variety of ecosystems. In 1976, The Robert Plot described and drew a thigh bone. It was thought to be the bone of a giant man. Although the fossils all disappeared without the trace, however, the surviving illustration can suggest that it can instead be a part of a Megalosaurus.
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In 1822, Mary Ann Mantell discovered the teeth in the ground. Further, the British Scientist Richard Owen realized these fossils were distinct from the teeth or bones of living creatures. The ancient animals were different, and they deserved their name. That is why Owen dubbed the group Dinosaurian.
The tracks of dinosaur have been studied in the Connecticut Valley since 1830. They belonged to many ravens, and some say they were the birds freed from Noah’s Ark. At the time of the flood, the paleontology was long on deduction and short on evidence.
It was again remedied when two wealthy scientists Thiel Marsh and Edward Cope, found fossils in the Rocky Mountain region. In the 1800s, their team was armed against the Native Americans. They drug up many bones from different sites. Marsh and Copes were known as Bone Wars as they uncovered 136 new species. However, their respective fossils were able to display the excitement for dinosaurs the world over.
However, in 1900, the enthusiasm for dinosaurs grew steadily. They attracted the attention of the scientific community. Institutions such as the Carnegie Museum of Natural History and the American Museum of Natural History had made dig teams. Many rich bone beds were uncovered in North America. Many new sites in Utah have revealed different species. These species were Camarasaurus, Apatosaurus, Stegosaurus, and Tyrannosaurus Rex.
Moreover, in recent decades, dinosaur research has been continued by different countries. Here the main motive was to analyze and reconstruct their lives and habitats.
Robert Bakker proposed these creatures as agile and energetic in 1960. They were active like warm-blooded animals. They were very large animals at that time.
In the mid-1970s, tPeter Dodson and James Farlow hypothesized that they had used their horns to attract the female’s attention.
In late 1970s, Jack Horner made history by identifying some dinosaur nests and eggs in North America. These important Maia aura fossils also helped them learn that some species nested in there and cared for their young.
In the past few years, many paleontologists, including Ken Carpenter, Phil Currie, and William Coombs, identified many juvenile dinosaurs. They were thought to be adults previously. Further, David Weishampel has explained that some dinosaurs used their crest and nasal passages for the creation of sound. However, scientists are trying to do more research on these species.