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ichthyosaurs are living in the ocean, new invertebrates call ammonite develop. Nearly half of the valuable mineral deposits in the world occurr in the rocks of this period
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when tribolites appear. shelled brachoiopods appear.
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very little plant life during this period. colonies of tiny vertebrate call grapolies florished and vertibrates appear, fish did not have jaws teeth on their bodies were covered with bony plates
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eurypterids sea stars and coral became more common. Vascular land plants and animals such as scorpians begin to evolve on land.
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Huge plants begin to develope early amphibians form. Age of fishes, fish that can breath out of water and spend time on landform
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Swamps and forests cover the land. giant cockroaches appear
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Enviromental change causes mass extinction of sea invertibrates as seas retreat. Appalachian mountain are created because of collision.
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welcome to the world of the dinosaur enter the squirrl sized dinosaurs. small rodents evolve
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Early reptiles resembling large lizards appear. Dinos are big and dominate the land.
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where the species of dinosaurs became carnivores and then plant life began to become sophisticated and later dinosaurs went into a mass extinction.
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Antartic icecaps begin to form. polluted the oceans.
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epochs where small rodents evolved overtime and having the temperarture of 4 degrees celcius
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where the indian subcontinent emerged and uplift within the himalayas happened and many early mammals became extinct
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where herbivores and predators evolved into modern forms and when climate change started to happen.
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where ice sheets began to expand and where animals with thick fur began to develope
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when the ice sheets melted and when humans started using tools to build things
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the period which human activity began to evolve.