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Biology Timeline
è stata creata
Felix Hoehner
⟶ è stato aggiornato 9 feb 2018 ⟶
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Eventi
Plants first invaded land
Vascular plants evolved
Vertebrates arrive on land, were carnivores
Three foot wide trees forested most of the world
First herbivores appeared
Ecosystems changed to the pyramid we know today
Tall dinosaurs appeared, some bipedal and others long-necked
Small bushes living in marginal areas
Bushes start spreading through forests
A comet crash causes dust and sulfuric acid to fill atmosphere, extincts dinosaurs
Descendants of dinosaurs (buffaloes, horses, elephants) appeared (plant eaters)
Grasses become widespread, causing ice age