experimental
Définition
broader |
Paleozoic
|
has beginning |
Base of Ordovician
|
has end |
Base of Silurian
|
in scheme |
Chronostratigraphy / Geochronology
|
is gSSA |
false
|
is gSSP |
true
|
label |
Ordovicien
| Ordovician
|
mnemo |
ORDO
|
narrower |
Upper Ordovician
| Lower Ordovician
| Ibexian
| Middle Ordovician
| Salm
|
nature |
Référent
|
notation |
o
|
pref label |
Ordovicien
| Ordovician
|
rgb coordinate blue |
112
|
rgb coordinate green |
146
|
rgb coordinate red |
0
|
source |
Gradstein et al. (2012)
|
spatial |
Monde
|
status |
Valid
|
type |
Concept
|
type chronostrat age |
System
|
type geochrono age |
Period
|