GCMD Chronostratigraphic Units Types Keywords

EARLY

https://gcmd.earthdata.nasa.gov/kms/concept/599af9b7-4517-45c2-8505-a46fc204e524

broader
https://gcmd.earthdata.nasa.gov/kms/concept/866fbfc3-7395-4a77-bc1e-29272e8b795c original
narrower
599af9b7-4517-45c2-8505-a46fc204e524 original
change note
2019-11-21 08:37:48.0 [tstevens] Insert Concept
add broader relation (LOWER [599af9b7-4517-45c2-8505-a46fc204e524,423461] - DEVONIAN [866fbfc3-7395-4a77-bc1e-29272e8b795c,396453]);
2019-11-21 08:46:43.0 [tstevens] Insert Concept
add narrower relation (LOWER [599af9b7-4517-45c2-8505-a46fc204e524,423461] - EMSIAN [6d53c67e-1019-4c4f-9ed5-b0fadab11f55,423481]);
2019-11-21 08:47:06.0 [tstevens] Insert Concept
add narrower relation (LOWER [599af9b7-4517-45c2-8505-a46fc204e524,423461] - PRAGIAN [2c142df4-aede-4962-b141-3b84cea639b0,423485]);
2019-11-21 08:47:30.0 [tstevens] Insert Concept
add narrower relation (LOWER [599af9b7-4517-45c2-8505-a46fc204e524,423461] - LOCHKOVIAN [8ec111c5-b689-4482-9bfe-a9884c44f7f3,423489]);
2019-12-19 08:10:32.0 [tstevens]
insert Definition (id: null
text: In the Lower Devonian, ammonoids appeared, leaving us large limestone deposits from their shells. Bivalves, crinoid and blastoid echinoderms, graptolites, and trilobites were all present, though most groups of trilobites disappeared by the close of the Devonian.
language code: en);
2020-01-06 08:11:39.0 [tstevens] Rename Concept
update PrefLabel (EARLY);
definition In the Lower Devonian, ammonoids appeared, leaving us large limestone deposits from their shells. Bivalves, crinoid and blastoid echinoderms, graptolites, and trilobites were all present, though most groups of trilobites disappeared by the close of the Devonian.
narrower
https://gcmd.earthdata.nasa.gov/kms/concept/2c142df4-aede-4962-b141-3b84cea639b0 original
broader
599af9b7-4517-45c2-8505-a46fc204e524 original
https://gcmd.earthdata.nasa.gov/kms/concept/6d53c67e-1019-4c4f-9ed5-b0fadab11f55 original
broader
599af9b7-4517-45c2-8505-a46fc204e524 original
https://gcmd.earthdata.nasa.gov/kms/concept/8ec111c5-b689-4482-9bfe-a9884c44f7f3 original
broader
599af9b7-4517-45c2-8505-a46fc204e524 original
reference
text International Commission on Stratigraphy (http://www.stratigraphy.org/)
type
Resource
type
Resource original
Concept original
in scheme chronounits original