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A bug stuck in amber - Preserved Remains

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A bug stuck in amber - Preserved Remains

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1. Paleontologist believe it is 4.6 Billion Years Old

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History of rock and fossils - Geologic Time Scale

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History of rock and fossils - Geologic Time Scale

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Scientists who study fossils are called paleontologists. ...Rocks formed during the Phanerozoic Eon may have fossilsof complex animals and plants such as dinosaurs, mammals, and trees. We study Earth's history by studying the record of past events that is preserved in the rocks.

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Relative Dating of rock layers tells us that the deeper we dig - the older the rock gets.

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Relative Dating of rock layers tells us that the deeper we dig - the older the rock gets.

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These rock layers formed from sediments deposited in a lake. ... In the same way, geologists figure out the relative ages of fossils and sedimentary rock layers; rock layers, and the fossils they contain, toward the bottom of a stack of sediments are older than those found higher in the stack. Radiometric Dating.

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Fossil is an impression left by the original organism - mold 

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Fossil is an impression left by the original organism - mold 

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A hollow impression left in mud or sediment that shows activity of the organism. A thin coating of black left on rock. This fossil is formed after organisms press into sediment. ... This fossils is formed when sediment settles into a mold and turns into sedimentary rock, making a solid copy of the organism.

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A fossil trackway is a type of trace fossil, a trackway made by an organism. ... Marine organisms also made many ancienttrackways (such as the trails of trilobites and eurypterids like Hibbertopterus). Some basic fossil trackway types: footprints. tail drags.

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Petrified wood is the name given to a special type of fossilized remains of terrestrial vegetation. It is the result of a tree or tree-like plants having completely transitioned to stone by the process of permineralization.

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Organisms buried in sediment may decay or dissolve away leaving a cavity or mold. If the space is subsequently filled with sediment, an external castcan be made. Molds and casts are three dimensional and preserve the surface contours of the organism.

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In physics and systems theory, the superposition principle, also known assuperposition property, states that, for all linear systems, the net response caused by two or more stimuli is the sum of the responses that would have been caused by each stimulus individually.

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Uniformitarianism is defined in the authoritative Glossary of Geology as "the fundamental principle or doctrine that geologic processes and natural laws now operating to modify the Earth's crust have acted in the same regular manner and with essentially the same intensity throughout geologic time, and that past ...