Types And Morphological Characteristics Of Dinosaur Fossils

Dinosaur fossils refer to the fact that after the death of dinosaurs, the soft tissue in the body disappeared due to decay, and the bones (including teeth) and other hard tissues were deposited in the sediment, in an environment isolated from oxygen, after tens of millions of years or even hundreds of millions of years of deposition. As a result, the bones are completely mineralized and preserved. In addition, the relics of dinosaurs' life, such as footprints, can sometimes be petrified and preserved as fossils.

The petrification process started when the dinosaurs died and were quickly covered in sediment or underwater silt. These deposits contain fine particles that form a loose covering on the surface of the body. The "blanket" protects the carcass from scavengers, and also keeps out oxygen and inhibits microbial decomposition.

Dinosaur remains such as teeth and bones are the most familiar fossils, which are called body fossils; as for the remains of dinosaurs (including footprints, nests, feces or foraging traces), it is also possible to form fossils and preserve them, which are called body fossils. For the trace fossils. These fossils are the main basis for the study of dinosaurs, according to which the type, number, size and so on of dinosaurs can be inferred.

The body shape and life form of dinosaurs can be restored and inferred from the discovered fossils, but the color of the dinosaur's skin cannot be found on the basis of fossils, so it can only be inferred based on the knowledge of existing animals. According to paleontologists, large dinosaurs may have markings or spots as protective colors, and the colors will be more vivid. During mating, parts of the head and skin of male dinosaurs may have shown bright colors like modern birds, making it easier to attract the favor of the opposite sex.

The dinosaurs that can be seen in museums are actually only a small part of the fossil inventory. For example, the Geoscience Museum at Brigham Young University in Provo, Utah, houses nearly 100 tons of fossils that have not yet been stripped of their gypsum shells. Many museum basement shelves or drawers are crammed with labeled fossilized dinosaur bones, most of which sit untouched for years, waiting to be studied by scientists. Some paleontologists identify entirely new species of dinosaur from a bone or two unstudied or misidentified from a century or two ago.