Statements (16)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
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
|
| https://www.w3.org/2000/01/rdf-schema#label |
early Devonian
|
| gptkbp:notableFor |
appearance of first ammonoids
diversification of early land plants evolution of jawed fishes expansion of terrestrial arthropods |
| gptkbp:partOf |
gptkb:Devonian_period
|
| gptkbp:precededBy |
gptkb:Silurian_period
|
| gptkbp:startDate |
419.2 million years ago
|
| gptkbp:bfsParent |
gptkb:Amphibia
|
| gptkbp:bfsLayer |
5
|