Devonian System of North America
GPTKB entity
Statements (47)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
geological formation
|
| gptkbp:contains |
Devonian rocks
Devonian fossils |
| gptkbp:definedIn |
fossil content
lithology stratigraphic position |
| gptkbp:economicImportance |
natural gas
limestone quarrying shale gas petroleum resources |
| gptkbp:fossil |
brachiopods
trilobites ammonoids placoderm fishes early forests primitive amphibians |
| https://www.w3.org/2000/01/rdf-schema#label |
Devonian System of North America
|
| gptkbp:includes |
gptkb:Catskill_Formation
gptkb:Hamilton_Group gptkb:Onondaga_Limestone gptkb:Marcellus_Shale Devonian reef complexes Chattanooga Shale |
| gptkbp:location |
gptkb:North_America
|
| gptkbp:majorBasins |
gptkb:Williston_Basin
gptkb:Appalachian_Basin gptkb:Michigan_Basin |
| gptkbp:notableFor |
abundant marine fossils
early tetrapods early terrestrial plants |
| gptkbp:overlies |
Silurian System of North America
|
| gptkbp:partOf |
gptkb:Devonian_Period
|
| gptkbp:period |
419.2 to 358.9 million years ago
|
| gptkbp:recognizedBy |
19th century
|
| gptkbp:region |
gptkb:eastern_North_America
gptkb:western_North_America |
| gptkbp:relatedTo |
Devonian System of Europe
|
| gptkbp:stratigraphicUnits |
Devonian formations
Devonian beds Devonian groups Devonian members |
| gptkbp:studiedBy |
geologists
paleontologists |
| gptkbp:underlies |
Mississippian System of North America
|
| gptkbp:bfsParent |
gptkb:Hamilton_Group
gptkb:Chappel_Limestone |
| gptkbp:bfsLayer |
8
|