When did life colonized the country?

The first attempts to colonize life were microbial mats, large flat colonies of photosynthetic microbes, fossilized residues dated to 2.6 billion and 2.7 billion years. For billions of years, microbes were the only forms of life colonizing Earth (and only life in general). These microbes lived mainly on the coasts of oceans and streams and would look like nothing but green slime. It would take many more millions of years to colonize the country.

The first possible songs on Earth are dated 530 million years ago, during the Cambrian period. These trace fossils, known as the rip and climactichnites, appear as a series of weak bumps and long grooves reminiscent of motorcycle traces. It is assumed that both songs were made by early arthropods and some of them are relatively large - up to 10 cm (4 inches) wide. These traces could be left after the Mo -orpions passengers from one tide to another.

The first extended earthly fossils did not appear until about 425 million years ago, during the Silurian period. The first life that colonized the Earth was mosses and lichens. This was followed by simple vascular plants such as Cooksonia (mostly from the northern hemisphere) and Barragwanathia (from Australia), followed by ground mushrooms that left fragmentary fossils. These plants began very short, only a few centimeters high, but left large "forests" fossils. They have not yet had differentiated stems or leaves.

When the soil began to create a nice layer of soil, more plants could grow, causing positive feedback to colonize soil. At the end of the Silurian period, a simple earthly ecosystem, including Millipede of herbivores, Centipede and Arachnid Authavores, worms of detritivors and fungal decompositions, appeared. Nematodes were also probably present, but did not leave fossils. Colonize the soil took several tens of milesIon years.