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4600 BCE
Precambrian era
continents formed and the atmosphere developed. Early life was evolving and it had things like sponges, corals, jelly fish, etc. -
541 BCE
Cambrian Period
High levels of carbon dioxide was made it really hot so there wasn't that many marine plants. Because of this it made an explosion and then plants and animals evolved. -
485 BCE
Ordovician Period
It is known for its diversity of marine invertebrates. It had things like graptolites, brachiopods, trilobites, etc. -
443 BCE
Silurian Period
It is the "most remarkable biological event" to happen during the Silurian because of the evolution and diversity of fish. -
419 BCE
Devonian Period
Known as the "Age of Fishes" because of all the variety's of fish. There was also the development of roots, leaves, seeds, etc. -
358 BCE
Carboniferous Period
Plants were developing new structures, seed plants developed, and colonized habitats .