GCMD Chronostratigraphic Units Types Keywords

FORTUNIAN

https://gcmdservices.gsfc.nasa.gov/kms/concept/c0fcada2-4e5b-4349-9611-5879f541d4e4

broader
https://gcmdservices.gsfc.nasa.gov/kms/concept/411f36cf-8c87-474c-bfaf-614723a4b938 original
narrower
c0fcada2-4e5b-4349-9611-5879f541d4e4 original
change note
2019-12-17 13:14:32.0 [tstevens] Insert Concept
add broader relation (FORTUNIAN [c0fcada2-4e5b-4349-9611-5879f541d4e4,532343] - TERRENEUVIAN [411f36cf-8c87-474c-bfaf-614723a4b938,532303]);
2019-12-19 08:01:02.0 [tstevens]
insert Definition (id: null
text: The Fortunian stage marks the beginning of the Phanerozoic eon, the Paleozoic era, and the Cambrian period. It is the first of the two stages of the Terreneuvian series. It's base is defined as the first appearance of the trace fossil Treptichnus pedum 541 million years ago. The top of the Fortunian which is the base of the Stage 2 of the Cambrian has not been formally defined yet, but will correspond to the appearance of an Archeocyatha species or "Small shelly fossils" approximately 529 million years ago.
language code: en);
definition The Fortunian stage marks the beginning of the Phanerozoic eon, the Paleozoic era, and the Cambrian period. It is the first of the two stages of the Terreneuvian series. It's base is defined as the first appearance of the trace fossil Treptichnus pedum 541 million years ago. The top of the Fortunian which is the base of the Stage 2 of the Cambrian has not been formally defined yet, but will correspond to the appearance of an Archeocyatha species or "Small shelly fossils" approximately 529 million years ago.
type
Resource original
Concept original
in scheme chronounits original