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
    • ‘Non-symbiotic corals have been an important constituent of reefs since at least the beginning of the Phanerozoic eon.’
    • ‘So far, about 17 macrofossil - rich hydrocarbon seep systems have been recognised in the Phanerozoic strata of Jurassic to Pliocene age.’
    • ‘There seems to be no evidence of low palaeolatitude glaciation in the three Phanerozoic glacial episodes.’
    • ‘The Indian plate rocks include late Archaean, Proterozoic and Phanerozoic continental margin sequences.’
    • ‘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. 1.1as noun the Phanerozoic The Phanerozoic aeon or the system of rocks deposited during it.


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