Evolution of Dinosaur Fossils
Dinosaur fossils not only record the evolution of the entire biological world, but also the carrier of rich information on geological historical events. It is a complete and irreplaceable "geohistory" for studying the history of the earth. Let's take a look at the factors that led to the formation of dinosaur fossils! 1. Biological organisms should have certain hard bodies, such as bones, hard shells and shells. Hard bodies are easy to preserve. Animal excreta and excreta of physiological and reproductive functions, such as skin and feces, can also form fossils under special circumstances. 2. In the environment of hypoxia and rapid burial after death, it is beneficial to the preservation of non-mineralized animal and plant tissues, but it can not prevent the decay of biological remains caused by microbial bacteria. Only in the aseptic environment can the soft drive tissues be preserved. 3. Intermittent flooding is easily formed under suitable paleoclimate, especially in ...