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The Jurassic term comes from Jura Mountains on the border of France and Switzerland.  The wealth of fossils in Jurassic sediments of Britain meant that biostratigraphic zonation was more advanced than during other periods. Jurassic period is generally divided into early, middle and late.
The Jurassic period is believed to have occurred prior to the breakup of the supercontinent Pangea.The Jurassic period oceans where far more widespread then they were during the Triassic. The Jurassic sea level is believed to have rose and flooded, some of the portions of the contents. When the epi-continental sea spilled out, the Tethys Proto-Atlantic and spread across Europe. This left rich sediment on the lands after the flooding, and also limestone all over the land. The shallow warm seas where home to many life’s the ocean that had animal life across Russia and into what is now the Arctic Sea before retreating at the end of the period. Much of North America was flooded by wide sea that extended into Utah. The continent-wide embayment was doubled by a Sundance Sea, and was fringed by strips of continental land on three sides. 
Life Gymnosperm plants/ palm-like Cycadophyta where huge in the Jurassic period they where called "the Age of Cycads" Some cycads were tall palm-like trees with rough branches marked by leaf scars and pinnate (fern-like) leaf fronds. Other Bennettitales Where another big type of tree. They had short and stubby trunks that held the tree in its position with tree fronds coming out from the top of the tree. Conifers where the most significant amount of trees in that time, they included representatives of the extant (still living) families Araucariaceae, Cephalotaxaceae, Pinaceae, Podocarpaceae, Taxaceae, and Taxodiaceae, Ginkgos where also a very important time particularly for the altitudes In the Sea there was a great multi amount of invertebrates Sponges, corals, bryozoa, gastropods, bivalves, and ammonoid all of these flourished in their growth, the latter two groups becoming the dominant invertebrates for the rest of the Mesozoic period.
Weather Jurassic and Cretaceous were a warmer climate then today on the studies of climate change they did. This has global records of the climate change and dinosaurs to the study of the Jurassic change. This is a content that provides an account in North America, and East Africa. At a global scale evaporates predominated in low latitudes and coals in mid- to high latitudes. We can get these conditions from Dryer to wet condition really fast between the equator and the poles. Most dinosaurs that remain are known from low-latitude to regions where plant fossils are generally sparse and evaporates common. Few Dinosaurs remain from mid- to high altitudes. This could change the whole way we thought the dinosaur food change worked, because of the way they where affected by the weather change.