Homerian

Homerian
430.5 ± 0.7 – 427.4 ± 0.5 Ma
Paleogeography of the Homerian, 430 Ma
Chronology
Etymology
Name formalityFormal
Name ratified1980
Usage information
Celestial bodyEarth
Regional usageGlobal (ICS)
Time scale(s) usedICS Time Scale
Definition
Chronological unitAge
Stratigraphic unitStage
Time span formalityFormal
Lower boundary definitionFAD of the graptolite Cyrtograptus lundgreni
Lower boundary GSSPSheinton Brook, Homer, England
52°36′56″N 2°33′53″W / 52.6156°N 2.5647°W / 52.6156; -2.5647
Lower GSSP ratified1980
Upper boundary definitionFAD of the graptolite Saetograptus (Colonograptus) varians
Upper boundary GSSPPitch Coppice, Ludlow, U.K.
52°21′33″N 2°46′38″W / 52.3592°N 2.7772°W / 52.3592; -2.7772
Upper GSSP ratified1980

In the geologic timescale, the Homerian is an age of the Wenlock Epoch of the Silurian Period of the Paleozoic Era of the Phanerozoic Eon that is comprehended between 430.5 ± 0.7 Ma and 427.4 ± 0.5 Ma (million years ago), approximately. The Homerian Age succeeds the Sheinwoodian Age and precedes the Gorstian Age.

The name comes from the small village of Homer, Shropshire near Much Wenlock. The defining lower boundary of Homerian rock layers (GSSP) is located within the Coalbrookdale Formation of England.



This page was last updated at 2023-12-08 22:09 UTC. Update now. View original page.

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