GCMD Chronostratigraphic Units Types Keywords

LOCHKOVIAN

https://gcmd.earthdata.nasa.gov/kms/concept/8ec111c5-b689-4482-9bfe-a9884c44f7f3

broader
https://gcmd.earthdata.nasa.gov/kms/concept/599af9b7-4517-45c2-8505-a46fc204e524 original
narrower
8ec111c5-b689-4482-9bfe-a9884c44f7f3 original
change note
2019-11-21 08:47:30.0 [tstevens] Insert Concept
add broader relation (LOCHKOVIAN [8ec111c5-b689-4482-9bfe-a9884c44f7f3,423489] - LOWER [599af9b7-4517-45c2-8505-a46fc204e524,423461]);
2019-12-17 10:57:35.0 [tstevens]
insert Definition (id: null
text: The Lochkovian is one of three faunal stages in the Early Devonian epoch. It lasted from 419.2 ± 3.2 million years ago to 410.8 ± 2.8 million years ago. It marked the beginning of the Devonian Period, and was followed by the Pragian stage.
language code: en);
definition The Lochkovian is one of three faunal stages in the Early Devonian epoch. It lasted from 419.2 ± 3.2 million years ago to 410.8 ± 2.8 million years ago. It marked the beginning of the Devonian Period, and was followed by the Pragian stage.
reference
text International Commission on Stratigraphy (http://www.stratigraphy.org/)
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in scheme chronounits original