Essay on Dinosaurs of the Jurassic Period

3615 Words Sep 9th, 2010 15 Pages
Dinosaurs of the Jurassic Period
Nicole Jones
Park University

Abstract
This paper examines the Dinosaurs of the Jurassic Period. The paper considers the holistic view of the Jurassic period in addition to the Dinosaurs that roamed the Earth during this period. Finally, historical consideration evidence leading to the demise or disappearance of the dinosaurs. Analysis is based upon research conducted from ten academic reference sites. The paper provides an understanding of the different species that lived during the Jurassic period and the environmental and climatic conditions that supported them. Also discussed is a significant amount of information regarding palaeontologists’ discoveries of great dinosaur faunas, such as the
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Others, such as the beenettitaleans, were of extreme importance among the shrub-like trees, having short and stubby trunks with the fronds sprouting from the top (Kazlev, 2002). Although many different trees and plants fared well during the Triassic period, we can conclude the flora of the Jurassic was much more lush and verdant (Viegas, 2010). However, there are marked differences in the vegetation based on their geographical location. In the Lower Jurassic, scientists have mapped the northern floral zone to include such countries as Siberia and Japan, Greenland, northern and central Europe; from here, they mapped a southern zone, which extended from Mexico to the Middle East and southern China (as cited in Hallam, 1993). Therefore, it is possible the zones might reflect a wide variation of the latitudinal differentiation, however, some considered the differences were due in part to the continentality of the climate, thus exhibiting evidence to the degree of contrast between the seasons (as cited in Hallam, 1993). The climate of the northern zone was considered to be humid and moderately warm whilst that of the southern zone could be compared to the present humid tropical zone (Hallam, 1993). Conifer pollens have been used as an indicator to detect the amount of aridity during this period; the pollens were found to be the most abundant Upper Jurassic sediments, and as such indicated a time of maximum aridity during that time (as cited in

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