Home›Sources›Geologic Time Scale (Wikipedia)SourcesGeologic Time Scale (Wikipedia)WikipediaCitation FormatsGeneral ReferenceGeneral Reference Citation TextEarth and Environment Atlas. "Geologic Time Scale (Wikipedia)." Accessed August 30, 2026. https://dev-earth.interactiveatlas.org/sources/geologic-time-scale-wikipedia.Copy General ReferenceAPA StyleAPA Style Citation TextEarth and Environment Atlas. (n.d.). Geologic Time Scale (Wikipedia). Retrieved August 30, 2026, from https://dev-earth.interactiveatlas.org/sources/geologic-time-scale-wikipediaCopy APA StyleBibTeXBibTeX Citation Text@misc{earthandenvironmentatlas-geologic-time-scale-wikipedia, author = {Earth and Environment Atlas}, title = {Geologic Time Scale (Wikipedia)}, year = {2026}, url = {https://dev-earth.interactiveatlas.org/sources/geologic-time-scale-wikipedia}, note = {Accessed August 30, 2026} }Copy BibTeXReference and ClassificationDevelopingFactsSourcesClaims Backed By This Source (118 claims)Take a Related QuizComments (0)Reader Challenges (0 open reader challenges)FactsURLWell-attestedhttps://en.wikipedia.org/wiki/Geologic_time_scalePublisherWell-attestedWikimedia FoundationSource TypeWell-attestedEncyclopediaSourcesGeologic Time Scale (Wikipedia)Wikimedia FoundationView the SourceClaims Backed By This Source (118 claims)This source backs 118 claims across the atlas. As facts: 82 well-attested. As cited relationships: 21 holds, 1 connected. Plus 14 entities citing it as a general reference with no single fact or relationship attached.Disposition By TopicEras, 102 claims: 70 well-attested, 20 holds, 12 general references.Open Questions, 8 claims: 6 well-attested, 1 connected, 1 general references.Concepts, 5 claims: 3 well-attested, 1 holds, 1 general references.Sources, 3 claims: 3 well-attested.Well-attested82ConceptsGeologic Time ScaleErasArcheanCambrianCenozoicCretaceousHadeanHoloceneJurassicMesozoicPaleozoicPhanerozoicPleistoceneProterozoicOpen QuestionsWhat caused the mid-Pleistocene transition, when glacial cycles shifted from a roughly 41,000 year rhythm to the roughly 100,000 year rhythm still running today?SourcesGeologic Time Scale (Wikipedia)Holds21ConceptsGeologic Time ScaleErasArcheanCambrianCenozoicCretaceousHadeanHoloceneJurassicMesozoicPaleozoicPhanerozoicPleistoceneProterozoicConnected1Open QuestionsWhat caused the mid-Pleistocene transition, when glacial cycles shifted from a roughly 41,000 year rhythm to the roughly 100,000 year rhythm still running today?General References14ConceptsGeologic Time ScaleErasArcheanCambrianCenozoicCretaceousHadeanHoloceneJurassicMesozoicPaleozoicPhanerozoicPleistoceneProterozoicOpen QuestionsWhat caused the mid-Pleistocene transition, when glacial cycles shifted from a roughly 41,000 year rhythm to the roughly 100,000 year rhythm still running today?Take a Related QuizThe Earth Atlas Founding QuizIncludes a question about Geologic Time Scale (Wikipedia).Comments (0)No comments yet. Be the first to share a thought.Sign in to join the discussion.Reader Challenges (0 open reader challenges)No disputes yet. Spotted an error or a better source? Open the first one.Sign in to dispute this or suggest a correction.View At A Past YearThe atlas records no dated fact of its own for this entry, so there is no other year to choose.Show This Year