Test Your Vocabulary. Can you spell these 10 commonly misspelled words? Love words? Need even more definitions? Just between us: it's complicated. Ask the Editors 'Everyday' vs. What Is 'Semantic Bleaching'? How 'literally' can mean "figuratively". Literally How to use a word that literally drives some pe The Phanerozoic is the current geologic eon in the geologic timescale, and the one during which abundant animal life has existed.
It covers roughly million years and goes back to the time when diverse hard-shelled animals first appeared. The time before the Phanerozoic, called the Precambrian supereon, is now divided into the Hadean, Archaean and Proterozoic eons. The time span of the Phanerozoic includes the rapid emergence of a number of animal phyla; the evolution of these phyla into diverse forms; the emergence and development of complex plants; the evolution of fish; the emergence of insects and tetrapods; and the development of modern faunas.
During this time span tectonic forces caused the continents to move and eventually collect into a single landmass known as Pangaea, which then separated into the current continental landmasses. We're doing our best to make sure our content is useful, accurate and safe. If by any chance you spot an inappropriate comment while navigating through our website please use this form to let us know, and we'll take care of it shortly.
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Term » Definition. Word in Definition. Princeton's WordNet 0. Wiktionary 0. Phanerozoic noun The Phanerozoic eon. Freebase 0. How to pronounce phanerozoic? Alex US English. David US English. Origin of phanerozoic. Related articles. Arthur Holmes. Also Mentioned In.
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