Phanerozoic


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Related to Phanerozoic: Phanerozoic eon, Paleozoic, Proterozoic

Phan·e·ro·zo·ic

 (făn′ər-ə-zō′ĭk)
adj.
Of, relating to, or being the geologic time period from approximately 542 million years ago to the present, comprising the Paleozoic, Mesozoic, and Cenozoic Eras, and marked by an abundance of fossil evidence of life, especially higher forms, in the corresponding rocks. See Table at geologic time.
n.
The Phanerozoic Eon.

[Greek phaneros, visible (from phainein, to cause to appear; see bhā- in Indo-European roots) + -zoic.]

Phanerozoic

(ˌfænərəˈzəʊɪk)
adj
(Geological Science) of or relating to that part of geological time represented by rocks in which the evidence of life is abundant, comprising the Palaeozoic, Mesozoic, and Cenozoic eras
n
(Geological Science) the Phanerozoic the Phanerozoic era

Phan·e·ro·zo·ic

(făn′ər-ə-zō′ĭk)
The period of geologic time from about 540 million years ago to the present, including the Paleozoic, Mesozoic, and Cenozoic Eras. The Phanerozoic Eon is marked by an abundance of fossil evidence of life, especially more complex forms. See Chart at geologic time.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.Phanerozoic - the period from about 5,400 million years ago until the present
Age of Mammals, Cenozoic, Cenozoic era - approximately the last 63 million years
Translations
Phanérozoïque
References in periodicals archive ?
Strati-graphic Charts of Precambrian and Phanerozoic Deposits of Belarus: Explanatory Notes.
5 billion to 541 million years ago) and the Phanerozoic (541 million years ago to the present).
Berner, Atmospheric Oxygen Over Phanerozoic Time, Proceedings of the National Academy of Sciences, 96, 10955 (1999).
The Permian-Triassic mass extinction (around 250 My; PT) was the largest global biodiversity collapse in the Phanerozoic, eliminating almost 78% of marine genera and more than 95% of marine species (Raupand Sepkoski, 1982).
He added: "Non-metallic resources are contained in both Precambrian rocks and Phanerozoic rocks that overlie the Arabian shield in the central and northern parts of the Kingdom.
The three main timeline views include phanerozoic (540 million years), deep history (4.
Over the Phanerozoic eon--the last 570,000,000 years--carbon dioxide concentrations below 500 ppmv (parts per million by volume) are associated with the two longest-lasting glaciations of the earth.
Data on seawater composition since the start of the Phanerozoic eon ~540 million years ago provide essential information for understanding long-term chemical processes of socio-economic dimension like the evolution of life, land-ocean interaction, atmospheric chemistry, ecosystem adaptation to climate change, oceanic trace metal cycling, and for applied geological processes like the formation of submarine energy resources.