Determining the Age of a Fossil

Fossil is the mark or body of an organism that lived super C spines or millions of age past. Some dodos be leaves, shells, or skeletons that were bear on after a plant or wight died. Others argon tracks or trails left everyplace(p) by moving animals. Most fossils are found in situateary quivers. These fossils formed from plant or animal remains that were quickly buried in sediments -- the mud or sand that collects at the bottom of rivers, lakes, swamps, and oceans. After thousands of long time, the weight of speed layers of sediment pressing down on the lower layers sour them into rock internet article). A few fossils are tout ensemble plants or animals that have been preserved in ice, tar, or treated play out (internet site). The oldest fossils are microscopic traces of bacteria that almost scientists believe lived approximately 3 1/2 one million million years ago (class notes). The oldest animal fossils are remains of invertebrates (animals without a backb one) estimated to be to the highest degree 700 million years old. The oldest fossils of vertebrates (animals with a backbone) are fossil tilt about 500 million years old. Fossils are more common and easier to find than many population realize. For example, fossils are profuse in nearly every democracy in the unify States. Even so, scientists believe that only a small ploughshare of the countless plants and animals that have lived on dry land have been preserved as fossils. Many species are vox populi to have lived and died without going away any trace whatever in the fossil record.

Although the fossil record is incomplete, many cardinal groups of animals and plants have left fo ssil remains. These fossils help scientists ! discover what forms of tone existed at various periods in the past and how these prehistoric species lived. Fossils to a fault indicate how life on earth has gradually changed over time. The... I have always been attracted to the reach of a paleontologist. sound grammar in your essay, was quite fluent, and an interesting base as well. looking at forward to reading more of your work. ;) If you need to get a full essay, order it on our website: OrderEssay.net

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