GCMD Chronostratigraphic Units Types Keywords

GORSTIAN

https://gcmd.earthdata.nasa.gov/kms/concept/a5bf9cd1-657c-4669-8794-2ca79d769677

broader
https://gcmd.earthdata.nasa.gov/kms/concept/15256b96-f71f-43d2-8c1b-ab5dca5dd3db original
narrower
a5bf9cd1-657c-4669-8794-2ca79d769677 original
change note
2019-11-21 09:04:44.0 [tstevens] Insert Concept
add broader relation (GORSTIAN [a5bf9cd1-657c-4669-8794-2ca79d769677,423513] - LUDLOW [15256b96-f71f-43d2-8c1b-ab5dca5dd3db,423497]);
2019-12-17 12:42:49.0 [tstevens]
insert Definition (id: null
text: The Gorstian is the age of the Ludlow epoch of the Silurian period of the Paleozoic era of the Phanerozoic eon that is comprehended between 427.4 ± 0.5 Ma and 425.6 ± 0.9 Ma (million years ago), approximately. The Gorstian age succeeds the Homerian age and precedes the Ludfordian age.
language code: en);
definition The Gorstian is the age of the Ludlow epoch of the Silurian period of the Paleozoic era of the Phanerozoic eon that is comprehended between 427.4 ± 0.5 Ma and 425.6 ± 0.9 Ma (million years ago), approximately. The Gorstian age succeeds the Homerian age and precedes the Ludfordian age.
reference
text International Commission on Stratigraphy (http://www.stratigraphy.org/)
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in scheme chronounits original