Time Timeline
Category: Other
Updated: 9 Oct 2020
Contributors
Created byCesar Osornio
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Events
Start of the Cambrian explosionReptiles thrive during the JurassicStart of the Holocene ExtinctionNew land vertebrates start appearingAncient birds start taking flightStart of the rise of the mammalsEmergence of primatesEmergence of Homo-sapiens in AfricaArthropods begin to appear on landAge of FishesEmergence of FungiFormation of PangeaPangea begins to break apartRodinia begins to break apartIncrease in Volcanic ActivityNew coastlines formed as a result of riftingLaurasia splits into North America and EurasiaGondwana begins to break upSea levels fallglaciation multiple timesoceans became oxygenatedglaciation and sea levels decreasemelting glaciers submergedpolar ice caps goneocean basin spreadincreased tectonic plate movementhighest sea levels recorded in historyLarge oceans in between continentsCO2 Levels 15X higher than today
Oxygen levels rise up 10%CO2 Levels 14x-16x higher than todayOxygen accounts for 14% of atmosphereTemperatures rise by 20 degrees Celcius
Oxygen levels continuously rise, reaching 15%Oxygen Levels peak at around 35%Oxygen levels plummet, finally settling at 23%CO2 levels reach all time high
O2 levels between 15-19%Slight fluxuation in CO2 levels, but otherwise unchangedOxygen levels rose to the highest since CarboniferousCO2 levels begin to drop, reaching ~10%Present day CO2 levels reach about .03%, with over 78% of the atmosphere consisting of nitrogenmost photosynthesizers are single Cells, Bacteria and Algae (Cyanobacteria)First Sponges, Algae, and appearance of Coral Reefscolonization of vascular plantsFirst ForestsVery large plants, common swamp environmentsModern day conifers and flowering plants emergedDominated by gymnospermsfirst flowers appearedDisappearance of GinkgosIce Age, plant life minimalaverage temperature was around 22 degrees CelsiusWarm and stable climate with colder polesWarm and exceedingly dry climateMilder ClimateCold and dry in south Pangaea and hot and dry in the northArid ClimateMostly hot and wet climateWarm and humid climateSharp dip in temperature from the CretaceousRainfall changed depending on the cyclic ice agesC02 levels are 64% higher present day then they were in the pleistocene era.Periods
Paleozoic EraMesozoic EraCenozoic EraOrdovician-Silurian Extinction EventsLate Devonian ExtinctionPermian-Triassic ExtinctionTriassic-Jurassic ExtinctionCretaceous–Paleogene extinction event
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