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The Mesozoic Era [3] is the era of Earth's geological history, lasting from about , comprising the Triassic, Jurassic and Cretaceous Periods.It is characterized by the dominance of gymnosperms such as cycads, ginkgoaceae and araucarian conifers, and of archosaurian reptiles such as the dinosaurs; a hot greenhouse climate; and the tectonic break-up of Pangaea.
At the end of the Cretaceous, the impact of a large body with the Earth may have been the punctuation mark at the end of a progressive decline in biodiversity during the Maastrichtian age. The result was the extinction of three-quarters of Earth's plant and animal species.
Ron Brown was born in Washington, D.C., and was raised in Harlem, New York, in a middle-class family. He was a member of an African-American social and philanthropic organization, Jack and Jill of America.
c. 251.9 Ma ± 0.024 Ma – Mesozoic era and Triassic Period begin. Mesozoic Marine Revolution begins. c. 245 Ma – First ichthyosaurs. c. 240 Ma – Cynodonts and rhynchosaurs diversify. c. 225 Ma – First dinosaurs and teleosti evolve. c. 220 Ma – First crocodilians and flies. c. 215 Ma – First turtles.
If middle class is used in a manner that includes all persons who are at neither extreme of the social strata, it might still be influential, as such definition may include the "professional middle class", which is then commonly referred to as the "upper middle class". Despite the fact that the professional (upper) middle class is a privileged ...
Nicole Brown Simpson and Ronald Goldman were casual friends. But on June 12, 1994, the two became forever linked when they were fatally stabbed outside Nicole’s home in Los Angeles.
There is evidence that the first known glaciations occurred during the Proterozoic. The first began shortly after the beginning of the Proterozoic Eon, and evidence of at least four during the Neoproterozoic Era at the end of the Proterozoic Eon, possibly climaxing with the hypothesized Snowball Earth of the Sturtian and Marinoan glaciations.
The father of Ron Goldman, who was murdered alongside his friend Nicole Brown 30 years ago, said the news of OJ Simpson’s death was a further reminder of how long his son has been gone, and how ...