Share this entry

Phanerozoic Line breaks: Phan¦ero|zoic
Pronunciation: /ˌfan(ə)rə(ʊ)ˈzəʊɪk/

Definition of Phanerozoic in English:


1Relating to or denoting the aeon covering the whole of time since the beginning of the Cambrian period, and comprising the Palaeozoic, Mesozoic, and Cenozoic eras. Compare with Cryptozoic.
Example sentences
  • The Indian plate rocks include late Archaean, Proterozoic and Phanerozoic continental margin sequences.
  • So far, about 17 macrofossil - rich hydrocarbon seep systems have been recognised in the Phanerozoic strata of Jurassic to Pliocene age.
  • Beneath the Møre Basin, developed on a Phanerozoic domain, the lithospheric thickness is 125 km, decreasing to values of 80-60 km beneath the Cenozoic rifted domain.
1.1 (as noun the Phanerozoic) The Phanerozoic aeon or the system of rocks deposited during it.

The Phanerozoic began about 570 million years ago, and covers the period in which rocks contain evidence of abundant life in the form of obvious mineralized fossils


Late 19th century: from Greek phaneros 'visible, evident' + zōion 'animal' + -ic.

Definition of Phanerozoic in:

Share this entry


What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.

Get more from Oxford Dictionaries

Subscribe to remove adverts and access premium resources

Word of the day whippersnapper
Pronunciation: ˈwɪpəsnapə
a young, inexperienced person considered presumptuous or overconfident...