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The Phanerozoic represents a relatively brief period of half a billion years (brief that is relative to the age of the Earth and the universe) that constitutes the age of multicellular animal life on Earth. ... The Eon of Multicellular Life...
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www.palaeos.com/Timescale/Phanerozoic.htm
www.palaeos.com/Timescale/Phanerozoic.htm
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The Mesozoic Era of the Phanerozoic Eon: 251 to 65.5 million years ago ... Page Back Back: Paleozoic Back: Neoproterozoic Up: Phanerozoic Unit Home ... Phanerozoic Eon ; Paleozoic Era; Mesozoic Era ; Triassic Period; Jurassic Period; Cretaceous Period ; Cenozoic Era;
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www.palaeos.com/Mesozoic/Mesozoic.htm
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Eras, periods and epochs of the Phanerozoic, part of the geologic time scale.
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geology.about.com/library/bl/time/blphantime.htm
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The Phanerozoic Eon is a geologic time division that extends from roughly 542 million years ago until the present. The name derives from Greek and means “revealed life,” because the Phanerozoic Eon is defined as the period of time during wh...
http://www.wisegeek.com/what-is-the-phanerozoic-eon.htm
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Britannica online encyclopedia article on Phanerozoic Eon (geochronology), the span of geologic time extending about 542 million years from the end of the Proterozoic Eon to the present. ... Thus, although the Phanerozoic Eon represents only about the last one-eighth of time since the Earth’s crust formed,
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www.britannica.com/EBchecked/topic/455062/Phanerozoic-E...
www.britannica.com/EBchecked/topic/455062/Phanerozoic-Eon
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The Phanerozoic Eon represents geologic time from the end of Precambrian time, approximately 544 to 570 million years ago (mya), until the present day. As such, the Phanerozoic Eon includes the Paleozoic Era, the Mesozoic Era, and the current Cenozoic Era.
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www.enotes.com/earth-science/phanerozoic-eon
www.enotes.com/earth-science/phanerozoic-eon
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Timeline of evolution - Wikipedia, the free encyclopedia
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This timeline of the evolution of life outlines the major events in the development of life on the planet Earth (See Organism). For a thorough explanatory context, see the history of Earth, and geol...
en.wikipedia.org/wiki/Timeline_of_evolution
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The History of The Earth; Before; History; Prehistoric; Lesson #5; Phanerozoic Eon ... The Paleozoic Era is the longest of the Phanerozoic Eon, approximately 300 million years long; it takes up almost one third of the Eon. During the Paleozoic Era there were six major continental landmasses; each of these consisted...
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www.boscobel.k12.wi.us/~schnrich/phanerozoic.htm
www.boscobel.k12.wi.us/~schnrich/phanerozoic.htm
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Evidence for decoupling of atmospheric CO2 and global climate during the Phanerozoic eon ... The results can be reconciled if atmospheric carbon dioxide concentrations were not the principal driver of climate variability on geological timescales for at least one-third of the Phanerozoic eon, or if the reconstructed...
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www.nature.com/nature/journal/v408/n6813/abs/408698a0.h...
www.nature.com/nature/journal/v408/n6813/abs/408698a0.html
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