Gelasian

From Wikipedia, the free encyclopedia

Gelasian (also known as Waltonian) is a stage of the Pliocene Epoch. It spans the time between 2.588 ± 0.005 mya (million years ago) and 1.806 ± 0.005 mya.<ref>GeoWhen Database - Gelasian</ref> The Gelasian is now regarded as the beginning of the Quaternary.<ref name="INQUA-16-1">Clague, John et al. (2006) "Open Letter by INQUA Executive Committee" Quaternary Perspective, the INQUA Newsletter International Union for Quaternary Research 16(1):</ref>

The International Union for Quaternary Research (INQUA) has proposed that the Gelasian be moved from the Pliocene to the Pleistocene in order that the geologic time scale be more consistent with the key changes in Earth's climate, oceans, and biota that occurred then (2.588 mya) and corresponding to the Gauss-Matuyama magnetostratigraphic boundary.<ref name="INQUA-16-1"/>

[edit] References

<references/>

ja:ゲラシアン pt:Gelasiano sh:Gelasij fi:Gelasian