Geologic Time scale
Category: Other
Updated: 29 Oct 2018
Contributors
Created bySamuel Gorman
Attachments
Events
Formation of Planet EarthFormation of our MoonFirst Appearance of WaterEarliest Possible Appearance of LifeLatest life could've formedSingle-Celled Carbon based Organisms AppearLast Common ancestor between all life on earth is bornOxygen Creating bacteria evolvedOldest evidence of microbial life on landAdvanced Cells develop with diverse functions who replace existing cellsEarliest Land FungiFirst Organism resembling a plant reaches landFormation of Ozone LayerCambrian ExplosionFirst Evidence of Comb jellies and Sea CoralSpecies begin to become much more diverseFirst Footprints on LandFirst Cephalopods Appear ( Squids and Octopus)Sea Urchins AppearEarliest Ancestors of Spiders and Scorpions AppearEarth Starts to Resemble Modern StateFirst Crabs and Ferns AppearFirst Large Sharks evolveEarliest BeetlesPermian-Triassic Extinction event eliminates 90-95% of marine speciesSturgeon and Similar Fish AppearEarliest Dinosaurs and First Mammals EvolveFirst Flies and TurtlesMass Extinction of Triassic/Jurassic and kickstarted the golden age of dinosaursEvidence of the First VirusStegosauri (Stegosaurus Family) EvolveEarliest Salamanders , Newts AppearRodent-Like Mammals appear in eastern ChinaFirst Blood Sucking insects and Earliest Possible Ancestor of Modern Birds appearMonotremes appear ( Mammals that lay eggs)Earliest BeesExtinction of ichthyosaurs (Giant Ancient Sharks) and first appearance of Snakes and ClamsFirst Ants EvolveMammals Increase in DiversityTyronnasaurus appear in western north america and become apex predatorsCretaceous-Paleogene extinction kills close to 50% of all species excluding the birdsAppearance of meat-eating Carnivous mammalsModern Bird Groups appearGrasses Greatly diversifyFirst Bovids and kanhorrosFirst giraffes , hyenas and bears appearEarliest Humans EvolvedAncestor of all Primates appearsModern HumansPeriods
PrecambrianHadeonArcheanProterozoicPhanerozoicPaleozoicMesozoicCambrianOrdovicianSilurianDevonianMississipianPennsylvanianPermianCenozoicTriassicJurassicCretaceousTertiaryPalogeneNeogeneQuaternaryPaleoceneEoceneOligoceneMiocenePliocenePleistoceneHoloceme
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