Until 1947, the Cambrian explosion was thought to have shown the true richness of multicellular organisms. But after Sir Douglas Mawson and R.C. this was not true. Sprigg mistakenly encountered many "fossil jellyfish" at Ediacara Hills while observing the sandstone originally thought to belong to the bottom of the Cambrian era. Initially, these findings were considered "accidental inorganic markers". Several years later, the impression or extinction of other segmented worms found, trajectories of worms, and other combinations not similar to other known creatures,
There should be life before Cambrian. There are many complex life forms. The era of the Precambrian era was the era called the Edi Cialan. Ediacaran fossils are located in Ediacaran Mountains, Australia, Northwest Territories, Yukon, British Columbia, and Newfoundland, Canada. There are various kinds of fossils of Ediacar. The difference between these fossils is that there are no hard body parts that can be petrified. This makes them very rare. Normally, softened tissue disintegrates long before petrochemicals except for these places. Another remarkable feature is that the life style of Edykara has nothing to do with Cambrian!
What advanced group will inevitably produce the majority of Cambrian fauna? Can they be identified with Ediacaran fossils? There are several candidates. These fossils have various shapes with clear symmetry, and usually have a clear front end. In addition, some types may indicate horizontal splitting. These fossils may be following the way to a group such as arthropods and anneloids. Their exact position in the phylogenetic scheme of metazoan animals remains controversial.
Despite these controversial effects, many paleontologists still believe that Ediacaran animals are actually ancestors of existing animals. This controversy may not be solved until fossils that provide more information are found. (Levin 267) About 150 years ago, Charles Darwin was in the same situation. As per his confusion that there are no Cambrian ancestral ancestors, we were puzzled by the absence of these direct ancestral Ediacaras fossils.