Devonian System of North America

URI: https://gptkb.org/entity/Devonian_System_of_North_America
GPTKB entity
Statements (47)
Predicate Object
gptkbp:instanceOf gptkb: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
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 gptkb: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
https://www.w3.org/2000/01/rdf-schema#label Devonian System of North America