120 million years B.C until the end of the dinosaurs
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120 million years B.C Flowers and Nectar 120 to 90 million years B.C, animals changed so there were lots of new species. This was because flowers changed and they got pollen and nectar. The nectar was a good food supply so animals could eat it and over time they had lots of babies and they changed. Flowers changed colour to make animals come to them for food and pollinate them at the same time. Flowering plants made heaps of water. The trees sucked water out of the ground and pushed it out the stomata. The water made clouds and it rained all the time. Water vapour made it 5 degrees cooler. The climate changed. It became cooler and wetter. Water made caverns and changed the Earth. This is called erosion. |
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66 million years B.C First Grasses 66 million years ago there were rainforests everywhere. Then the first bit of grass started to grow in these rainforests. |
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65 million years B.C
Rainforests 65 million years B.C was the age of the rain forests. The rain forests were mainly made out of flowering plants. Flowering plants suck up a lot of water and pump out a lot of that water through its stomata. That would create clouds which would make an endless cycle of rain. |
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64 million years B.C
Tertiary Era After the extinction of the dinosaurs, the surviving mammals and reptiles diversified. Drifting continents made the world look different. Because of this, it created mountains and new ocean currents. This created major climate change. |
65 million years B.C
Ejector The Ejector was an asteroid that landed in the Gulf of Mexico and killed off the dinosaurs. It was able to do this because it caused a massive explosion that made shock-waves and fires that were very hazardous to dinosaurs. When it hit the dust raised up into the atmosphere and blocked out the sun. The plants didn’t photosynthesize so they couldn’t get the sugars they needed to grow. If they couldn’t grow, the herbivores couldn’t survive. If the herbivores couldn’t survive, the meat-eaters couldn’t survive. And that’s how the dinosaurs died.
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