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Matches in DBpedia 2016-04 for { <http://dbpedia.org/resource/Erathem> ?p ?o }

• Erathem abstract "In stratigraphy, paleontology, geology, and geobiology an erathem is the total stratigraphic unit deposited during a certain corresponding span of time during an era in the geologic timescale.It can therefore be used as a chronostratigraphic unit of time which delineates a large span of years — less than an geological eon, but greater than its successively smaller and more refined subdivisions (geologic periods, epochs, and geologic ages). By 3,500 Million years ago (Mya) simple life had developed on earth (the oldest known microbial fossils in Australia are dated to this figure. The atmosphere was a mix of noxious and poisonous gases (Methane, Ammonia, Sulphur compounds, etc.— a so-called reducing atmosphere lacking much free oxygen which was bound up in compounds).These simple organisms, Cyanobacteria ruled the still cooling earth for approximately a thousand million (over a billion) years and gradually transformed the atmosphere to one containing free oxygen. These changes, along with tectonic activity left chemical trails (red bed formation, etc.) and other physical clues (magnetic orientation, layer formation factors) in the rock record, and it is these changes along with the later richer fossil record which specialists use to demarcate times early in planet earth's history in various disciplines.Erathems are not often used in practice. While they are subdivisions of eonothems and are themselves subdivided into systems, dating experts prefer the finer resolution of smaller spans of time when evaluating strata.Erathems have the same names as their corresponding eras.The Phanerozoic eonothem can thus be divided into a Cenozoic, a Mesozoic and a Paleozoic erathem or matching era name.Similarly, the Proterozoic eonothem is divided youngest to oldest into theNeoproterozoic, Mesoproterozoic and Paleoproterozoic erathems,and the Archean eon and eonothem are divided similarly into theNeoarchean, Mesoarchean, Paleoarchean and the Eoarchean, for which a lower (oldest) limit is undefined.↑ 1.0 1.1 1.2 1.3 ↑ 2.0 2.1 2.2 2.3 ↑ 3.0 3.1 3.2 3.3 ↑".
• Erathem wikiPageExternalLink geotime.htm.
• Erathem wikiPageExternalLink md08.html.
• Erathem wikiPageExternalLink index.php?parentid=all.
• Erathem wikiPageExternalLink displayAbstract?fromPage=online&aid=74669.
• Erathem wikiPageExternalLink aeon.
• Erathem wikiPageExternalLink etyindex.html.
• Erathem wikiPageExternalLink cheu.pdf.
• Erathem wikiPageExternalLink over.htm.
• Erathem wikiPageExternalLink timeform.html.
• Erathem wikiPageExternalLink gtime1.html.
• Erathem wikiPageID "17737010".
• Erathem wikiPageLength "7520".
• Erathem wikiPageOutDegree "73".
• Erathem wikiPageRevisionID "683218271".
• Erathem wikiPageWikiLink 1,000,000,000.
• Erathem wikiPageWikiLink Age_(geology).
• Erathem wikiPageWikiLink Ammonia.
• Erathem wikiPageWikiLink Archean.
• Erathem wikiPageWikiLink Body_plan.
• Erathem wikiPageWikiLink Category:Chronostratigraphy.
• Erathem wikiPageWikiLink Category:Geological_eras.
• Erathem wikiPageWikiLink Category:Historical_geology.
• Erathem wikiPageWikiLink Category:Stratigraphy.
• Erathem wikiPageWikiLink Cenozoic.
• Erathem wikiPageWikiLink Chronostratigraphy.
• Erathem wikiPageWikiLink Cyanobacteria.
• Erathem wikiPageWikiLink Eoarchean.
• Erathem wikiPageWikiLink Eonothem.
• Erathem wikiPageWikiLink Epoch_(geology).
• Erathem wikiPageWikiLink Era_(geology).
• Erathem wikiPageWikiLink Fauna.
• Erathem wikiPageWikiLink Fossil.
• Erathem wikiPageWikiLink Geobiology.
• Erathem wikiPageWikiLink Geologic_time_scale.
• Erathem wikiPageWikiLink Geology.
• Erathem wikiPageWikiLink Global_Boundary_Stratotype_Section_and_Point.
• Erathem wikiPageWikiLink Global_Standard_Stratigraphic_Age.
• Erathem wikiPageWikiLink International_Commission_on_Stratigraphy.
• Erathem wikiPageWikiLink List_of_Global_Boundary_Stratotype_Sections_and_Points.
• Erathem wikiPageWikiLink MN_zonation.
• Erathem wikiPageWikiLink Mesoarchean.
• Erathem wikiPageWikiLink Mesoproterozoic.
• Erathem wikiPageWikiLink Mesozoic.
• Erathem wikiPageWikiLink Methane.
• Erathem wikiPageWikiLink Microorganism.
• Erathem wikiPageWikiLink Myr.
• Erathem wikiPageWikiLink Neoarchean.
• Erathem wikiPageWikiLink Neoproterozoic.
• Erathem wikiPageWikiLink New_Zealand_geologic_time_scale.
• Erathem wikiPageWikiLink North_American_land_mammal_age.
• Erathem wikiPageWikiLink Oxygen.
• Erathem wikiPageWikiLink Paleoarchean.
• Erathem wikiPageWikiLink Paleontology.
• Erathem wikiPageWikiLink Paleoproterozoic.
• Erathem wikiPageWikiLink Paleozoic.
• Erathem wikiPageWikiLink Period_(geology).
• Erathem wikiPageWikiLink Phanerozoic.
• Erathem wikiPageWikiLink Proterozoic.
• Erathem wikiPageWikiLink Red_beds.
• Erathem wikiPageWikiLink Reducing_atmosphere.
• Erathem wikiPageWikiLink Stratigraphy.
• Erathem wikiPageWikiLink Sulfur.
• Erathem wikiPageWikiLink System_(stratigraphy).
• Erathem wikiPageWikiLink Tectonics.
• Erathem wikiPageWikiLink Type_locality_(geology).
• Erathem wikiPageWikiLinkText "Erathem".
• Erathem wikiPageWikiLinkText "erathem".
• Erathem wikiPageUsesTemplate Template:Chronology.
• Erathem wikiPageUsesTemplate Template:Cite_journal.
• Erathem wikiPageUsesTemplate Template:Geology_to_Paleobiology.
• Erathem wikiPageUsesTemplate Template:Reflist.
• Erathem subject Category:Chronostratigraphy.
• Erathem subject Category:Geological_eras.
• Erathem subject Category:Historical_geology.
• Erathem subject Category:Stratigraphy.
• Erathem hypernym Unit.
• Erathem type Organisation.
• Erathem type Science.
• Erathem type Subfield.
• Erathem type Unit.
• Erathem comment "In stratigraphy, paleontology, geology, and geobiology an erathem is the total stratigraphic unit deposited during a certain corresponding span of time during an era in the geologic timescale.It can therefore be used as a chronostratigraphic unit of time which delineates a large span of years — less than an geological eon, but greater than its successively smaller and more refined subdivisions (geologic periods, epochs, and geologic ages).".
• Erathem label "Erathem".
• Erathem sameAs Q2464485.
• Erathem sameAs Erateem.
• Erathem sameAs Эратэма.
• Erathem sameAs Eratema.
• Erathem sameAs Ladekond.
• Erathem sameAs چینه‌دوران.
• Erathem sameAs Érathème.
• Erathem sameAs ჯგუფი_(გეოლოგია).
• Erathem sameAs Erathem.
• Erathem sameAs Eratem.
• Erathem sameAs m.047fhw0.
• Erathem sameAs Эратема.
• Erathem sameAs Ератема.
• Erathem sameAs Giới_(địa_tầng).
• Erathem sameAs Q2464485.
• Erathem wasDerivedFrom Erathem?oldid=683218271.
• Erathem isPrimaryTopicOf Erathem.