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Friday, January 24, 2014

Climate And Floral Change Over The Last 65 Million

Abstract Throughout Earths history, it has gone finished galore(postnominal) significant changes which have ultimately driven the world to the confine it is in now. One of these key events occurred during the Cenozoic time period, well-nigh 65 million years past; this change alter the geography and also the geology of Earth immensely. During this time, the world underwent extreme changes in its orbicular modality experiencing alternating periods of warmer and colder tempers due to different reasons. Simultaneously, these changes in conditions had profound effects on both the industrial plant and zoological science all over the world, in particular, the southeastward Australian region. Introduction The Cenozoic era began roughly 65 million years agone and consisted of several major periods: the Paleocene, Eocene, Oligocene, Miocene, Pliocene and Pleistocene. As mentioned earlier, throughout the chronological forward motion through these periods, the climate and con ditions which affected South East Australia vary tremendously and thence led some flora to line up to its changing environment. The species of plants which were unable to cope with much(prenominal) changes in climate such as temperature and humidity ultimately became much and more scarce. Palaeocene During the line of descent of the Palaeocene era roughly 65.5 million years ago and stop 55.8 million years ago (Britannica Online, 2012), Australia was generally subjected to a warm climate and relatively humid climate with relatively high levels of precipitation (Benbow et. al, 1995). As a result of the cold-temperate surroundings, plant life during this time consisted mainly of rainforests and swamplands. Gymnosperms, vascular plants which produce vulnerable seeds, and Protaeceae, a family of flowering plants widely distributed in the Southern hemisphere (Australian Government, 2000) were precise widespread in the surrounding flora and created a simmer down meso -micro-thermal rainforest. Early to Late E! ocene Notably, the warmest period during the Cenozoic period occurred during...If you compliments to get a full essay, order it on our website: OrderCustomPaper.com

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