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Phanerozoic - Wikipedia, the free encyclopedia
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The Phanerozoic (Brit. Phanærozoic ) eon is the current eon in the geologic timescale, and the one during which abundant animal life has existed. It covers roughly 545 million years and goes back ...
en.wikipedia.org/wiki/Phanerozoic
Extinction intensity during the Phanerozoic. As changes in biodiversity reflect both changes in origination and extinction, some events shown here are masked in the biodiversity curve by very rapid replacement with new species.
en.wikipedia.org/wiki/File:Phanerozoic_Biodiversity.png en.wikipedia.org/wiki/File:Phanerozoic_Biodiversity.png
The Phanerozoic represents a relatively brief period of half a billion years that constitutes the age of multicelluar life on Earth ... The term Phanerozoic - "revealed life" - is generally applied to the Paleozoic, Mesozoic and Cenozoic eras; the relatively short period during which the Earth has been inhabited...
www.palaeos.com/Timescale/Phanerozoic.htm www.palaeos.com/Timescale/Phanerozoic.htm · Cached
Eras, periods and epochs of the Phanerozoic, part of the geologic time scale.
geology.about.com/library/bl/time/blphantime.htm
However, little attention has been paid to the continuing evolution over the past 550 million years (Phanerozoic time), the time during which most higher ...
www.pnas.org/content/96/20/10955.full
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. ... The Phanerozoic, the eon of visible life, is divided into three major spans of time largely on the basis of characteristic assemblages...
www.britannica.com/EBchecked/topic/455062/Phanerozoic-E... www.britannica.com/EBchecked/topic/455062/Phanerozoic-Eon · Cached
This figures shows estimates of the changes in carbon dioxide concentrations during the Phanerozoic. Three estimates are based on geochemical modeling: GEOCARB III (Berner and Kothavala 2001), COPSE (Bergmann et al.
commons.wikimedia.org/wiki/File:Phanerozoic_Carbon_Diox... commons.wikimedia.org/wiki/File:Phanerozoic_Carbon_Dioxide.png
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...
www.boscobel.k12.wi.us/~schnrich/phanerozoic.htm www.boscobel.k12.wi.us/~schnrich/phanerozoic.htm · Cached
We review Phanerozoic sea-level changes [543 million years ago (Ma) to the present] on various time scales and present a new sea-level record for the past 100 million years (My).
www.sciencemag.org/cgi/content/abstract/310/5752/1293
Geologic time is finely subdivided through most of the Phanerozoic (see Harland et al., 1990 for details), but most of the finer subdivisions (e.g., epochs) are commonly referred to by non-specialists only in the Tertiary.
www.geo.ucalgary.ca/~macrae/timescale/timescale.html · Cached