Statements (16)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:geological_formation
|
| gptkbp:contains |
gptkb:Emsian_stage
gptkb:Lochkovian_stage gptkb:Pragian_stage |
| gptkbp:endDate |
393.3 million years ago
|
| gptkbp:followedBy |
gptkb:Middle_Devonian_period
|
| gptkbp:notableFor |
diversification of early land plants
evolution of jawed fishes appearance of first terrestrial arthropods |
| gptkbp:partOf |
gptkb:Devonian_period
|
| gptkbp:precededBy |
gptkb:Silurian_period
|
| gptkbp:startDate |
419.2 million years ago
|
| gptkbp:stratigraphicUnitOf |
gptkb:Lower_Devonian
|
| gptkbp:bfsParent |
gptkb:Caledonian_orogeny
|
| gptkbp:bfsLayer |
7
|
| https://www.w3.org/2000/01/rdf-schema#label |
Early Devonian period
|