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Published byDavid Keith Modified over 10 years ago
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By: Phil Stark and Michael Sartor Earth Science, p.6 Fr. O’Neill
The Mesozoic Era By: Phil Stark and Michael Sartor Earth Science, p.6 Fr. O’Neill
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In The Beginning The start of the Mesozoic Era was a desolate time in Earth’s history. Over 90% of Earth’s life extinct. Barren wasteland from comet, climate change, or volcanic eruptions. Called: Great Dying. Means “Middle Animals” Life that survived re-populated the planet, diversified ecosystems, and gave birth to all new life
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What It Was Like Earth’s landmasses collided forming Pangea.
Pangea was the first known super-continent. C-shaped. Came undone as soon as it formed. The split caused erratic climate everywhere. Seasonal monsoons, global warming, and rift valley formation Formed red sediment that best preserved fossils
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Life Forms Oceans were teaming with all new life: coil-shelled ammonites, mollusks, sea urchins, coral. Giant reptiles such as the: Ichthyosaurs, the long-necked and paddle-finned plesiosaurs, and squids. Phytoplankton first appeared. Frogs, salamanders, crocodiles, and turtles. Pterosaurs ruled the sky. On the ground were: moss, liverwort, ginkgoes, palm-like cycads. Also on land were: spiders, scorpions, millipedes, and grasshoppers. First evolutions of dinosaurs.
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Bigger Life Eozostrodon Coelophysis Plateosaurus
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The End To A Beginning Ended the same way it started.
Another mass extinction Dinosaurs survived into the Jurassic though.
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