Gaois

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  1. SCIENCE|natural and applied sciences|earth sciences|geology
    an ré Phailéasóch Reference Faomhadh an téarma seo mar chuid de Thionscadal Lex
    ga
    Palaeozoic | Paleozoic | Palaeozoic era
    en
    Definition geologic time that began 538.8 million years ago with the Cambrian explosion, an extraordinary diversification of marine animals, and ended about 252 million years ago with the end-Permian extinction, the greatest extinction event in Earth history Reference "Robison, Richard A. and Crick, Rex E.. ""Paleozoic Era"" (13.2.2024). Encyclopedia Britannica, 12 Jan. 2024"