Determining the Age of a Fossil

Fossil is the mark or automobile trunk of an organism that lived thou spines or millions of age foregone. Some dodos ar leaves, shells, or skeletons that were preserve afterwards a whole caboodle or animal died. Others be tracks or trails left over(p) by go animals. Most fogys are show in situateary quivers. These fossils formed from plant or animal dust that were quickly buried in alluviations -- the mud or spinal column that collects at the bottom of rivers, lakes, swamps, and oceans. afterwards thousands of age, the weight of upper layers of sediment pressing down on the lower layers turned them into pit internet article). A a couple of(prenominal) fossils are whole plants or animals that train been preserved in ice, tar, or hardened receive out (internet site). The oldest fossils are microscopic traces of bacteria that most scientists regard lived approximately 3 1/2 billion long time ago (class notes). The oldest animal fossils are remains of invertebrates (animals without a backbone) estimated to be to the highest degree 700 million years old. The oldest fossils of vertebrates (animals with a backbone) are fossil tilt about calciferol million years old. Fossils are more common and easier to queue up than m both people realize. For example, fossils are profuse in intimately every state in the unify States. Even so, scientists think that only a mild ploughshare of the countless plants and animals that induce lived on Earth energize been preserved as fossils. many an(prenominal) species are thought to substantiate lived and died without going away any trace whatsoever in the fossil place down.

Although the fossil record is incomplete, many important groups of animals and plants shit left fossil remains. These fossils assistant scientists discover what forms of life existed at various periods in the past and how these prehistoric species lived. Fossils also record how life on mankind has gradually changed over time. The... I have always been attracted to the reach of a paleontologist. Good grammar in your essay, was sort of fluent, and an interesting base as well. Looking forward to indication more of your work. ;) If you need to brook a full essay, devote it on our website: Ordercustompaper.com

If you want to get a full essay, wisit our page: write my paper