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  • Phanerozoic - Wikipedia
    It is the eon during which abundant animal and plant life has proliferated, diversified and colonized various niches on the Earth's surface, beginning with the Cambrian period when animals first developed hard shells that can be clearly preserved in the fossil record
  • Phanerozoic Eon | Paleozoic, Mesozoic Cenozoic | Britannica
    The Phanerozoic, the eon of visible life, is divided into three major spans of time largely on the basis of characteristic assemblages of life-forms: the Paleozoic (541 million to 252 million years ago), Mesozoic (252 million to 66 million years ago), and Cenozoic (66 million years ago to the present) eras
  • 2. 6: Phanerozoic Eon - Paleozoic Era - Geosciences LibreTexts
    The Phanerozoic Eon is the most recent, 541 million years ago to today, and means “visible life” because the Phanerozoic rock record is marked by an abundance of fossils Phanerozoic organisms had hard body parts like claws, scales, shells, and bones that were more easily preserved as fossils
  • Phanerozoic - Geology Page
    The Phanerozoic is the current geologic eon in the geologic time scale, and the one during which abundant animal life has existed It covers roughly 542 million years (541 0 ± 1 0) and goes back to the time when diverse hard-shelled animals first appeared
  • Phanerozoic Eon Facts: The Current Eon In The Geologic Time Scale
    The Phanerozoic Eon is the current eon in the geologic time scale It began around 541 million years ago (mya), and encompasses Earth’s history from then to the present day It represents around 12% of Earth’s total history
  • Phanerozoic - Simple English Wikipedia, the free encyclopedia
    It is the one in which abundant animal life has existed It covers about 541 million years, and goes back to the time when hard-shelled animals first appeared It was once thought that life began in the Cambrian, the first period of this eon
  • Phanerozoic - New World Encyclopedia
    The time span of the Phanerozoic eon includes the rapid emergence of a number of animal phyla, the emergence of terrestrial plants, complex plants, fish, and terrestrial animals, and the development of human beings and modern faunas
  • Phanerozoic Eon (541 million years ago – Present)
    The Phanerozoic Eon is the current eon in Earth’s history, spanning from around 541 million years ago to the present day Major geological events and periods within the Phanerozoic Eon include the Cambrian explosion, the formation of Pangaea, and the mass extinctions at the end of the Permian and Cretaceous periods


















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