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Sea levels began to rise during the Jurassic, which was probably caused by an increase in seafloor spreading.
The formation of new crust beneath the surface displaced ocean waters by as much as more than today, which flooded coastal areas.
Furthermore, Pangaea began to rift into smaller divisions, bringing more land area in contact with the ocean by forming the Tethys Sea.
Temperatures continued to increase and began to stabilize.
Humidity also increased with the proximity of water, and deserts retreated.

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