At the set out of the period, the breakup of the supercontinent Pangaea continued and accelerated. Laurasia, the northern half, broke up into sum America and Eurasia. Gondwana, the southern half, began to break up by the mid-Jurassic. The east portionâ€"Antarctica, Madagascar, India, and Australiaâ€"split from the western halfâ€"Africa and South America. newly oceans flooded the spaces in between. Mountains rose on the seafloor, pushing sea levels higher and onto the continents.
All this water gave the previously hot and modify climate a humid and drippy subtropical feel. alter deserts slowly took on a greener hue. Palm tree-like cycads were abundant, as were conifers such as araucaria and pines. Ginkgoes carpeted the mid- to high northern latitudes, and podocarps, a type of conifer, were particularly successful south of the Equator. Tree ferns were in any case present.
The oceans, especially the newly formed shallow interior seas, teemed with various(a) and abundant life. At the top of the food chain were the long-necked and paddle-finned plesiosaurs, fiend marine crocodiles, sharks, and rays.
Fishlike ichthyosaurs, squidlike cephalopods, and coil-shelled ammonites were abundant. Coral reefs grew in the warm waters, and sponges, snails, and mollusks flourished. Microscopic, free-floating plankton proliferated and whitethorn arrest turned parts of the ocean red.
Huge Dinosaurs
On land, dinosaurs were making their mark in a big wayâ€"literally. The plant-eating(prenominal) sauropod Brachiosaurus stood up to 52 feet (16 meters) tall, stretched some 85 feet (26 meters) long, and weighed more than than 80 tons. Diplodocus, another sauropod, was 90 feet (27 meters) long. These dinosaurs sheer size may have deterred attack from Allosaurus, a bulky, meat-eating dinosaur that walked on cardinal powerful legs. But...If you want to get a full essay, sound out it on our website: Orderessay
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