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Devonian - Devonian subdivisions | | Devonian - Devonian subdivisions: Encyclopedia II - Devonian - Devonian subdivisions | | The Devonian is usually broken into lower, middle, and upper subdivisions. The faunal stages from youngest to oldest are:
Devonian - Upper most recent.
Famennian/Chautauquan/Canadaway/Conneaut/Conneautan/Conewango/Conewangan
Frasnian/Senecan/Sonyea/Sonyean/West Falls
Devonian - Middle.
Caenovia/Cazenovian
Givetian/Erian/Senecan/Tioughniogan/Tioughnioga/Taghanic/Taghanican/Ge ...
See also:Devonian, Devonian - Naming, Devonian - Devonian subdivisions, Devonian - Upper most recent, Devonian - Middle, Devonian - Lower oldest, Devonian - Devonian palaeogeography, Devonian - Devonian fauna, Devonian - Marine biota, Devonian - Reefs, Devonian - Terrestrial biota | | | Devonian, Devonian - Devonian fauna, Devonian - Devonian palaeogeography, Devonian - Devonian subdivisions, Devonian - Lower oldest, Devonian - Marine biota, Devonian - Middle, Devonian - Naming, Devonian - Reefs, Devonian - Terrestrial biota, Devonian - Upper most recent, Geologic timescale, Phacops rana: a Devonian trilobite. | | |
| | | Devonian: Encyclopedia II - Devonian - Devonian subdivisions
Devonian - Devonian subdivisions
The Devonian is usually broken into lower, middle, and upper subdivisions. The faunal stages from youngest to oldest are:
Devonian - Upper most recent
- Famennian/Chautauquan/Canadaway/Conneaut/Conneautan/Conewango/Conewangan
- Frasnian/Senecan/Sonyea/Sonyean/West Falls
Devonian - Middle
- Caenovia/Cazenovian
- Givetian/Erian/Senecan/Tioughniogan/Tioughnioga/Taghanic/Taghanican/Genesee/Geneseean
- Eifelian/Southwood
Devonian - Lower oldest
- Helderberg
- Emsian/Sawkill/Deer Park
- Pragian/Siegenian
- Lochkovian/Gedinnian
Devonian rocks are oil and gas producers in some areas.
Other related archivesAntler orogeny, Appalachian Mountains, Archaeopteris, Australia, Baltica, Britain, Carboniferous, Cladoselache, Devon, England, Equator, Euramerica, Europe, Famennian/Chautauquan/Canadaway/Conneaut/Conneautan/Conewango/Conewangan, Ferrel cell, Frasnian/Senecan/Sonyea/Sonyean/West Falls, Geologic timescale, Givetian/Erian/Senecan/Tioughniogan/Tioughnioga/Taghanic/Taghanican/Genesee/Geneseean, Gondwana, Gondwanaland, Hadley cell, International Commission on Stratigraphy, Late Devonian extinction, Laurasia, Laurentia, Mississippian, North America, Old Red Sandstone, Paleozoic, Pangaea, Panthalassa, Phacops rana, Scandinavia, Siberia, Silurian, Tropic of Cancer, algae, ammonite, amphibians, arthropods, atmospheric, bacterial, bony fish, brachiopods, bryozoa, carbon dioxide, carbonate, climates, continent, continents, coral reefs, corals, crinoids, equator, evolutionary, evolved, extinction event, faunal stages, ferns, fish, fishes, forests, fossil, geologic period, greenhouse gas, habitats, hematite, insects, island arc, legs, lobe-finned, lobe-finned fish, lycophytes, million years ago, mites, mollusks, myriapods, oceans, ostracoderms, paleogeography, placoderms, planet, plants, plates, ray-finned fish, reef, rock beds, rugose corals, sampling bias, scorpions, seed-bearing plants, sharks, sink, soils, spiders, strata, supercontinent, tectonic, tetrapods, trilobites, vertebrates, walk on land, western Europe, wood
 Adapted from the Wikipedia article "Devonian subdivisions", under the G.N U Free Docmentation License. Please also see http://en.wikipedia.org/wiki |
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