User:Dentren/Template Test

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Dentren/Template Test period Expression error: Unexpected round operator - Expression error: Unexpected round operator million years ago <div id=Arrow style="position:absolute;top:0.2em;right:Expression error: Unexpected < operatorem">↓ PЄ Є O S D C P T J K PG N
Mean atmospheric O2 content over period duration	ca. 12.5 Vol %[1] (63 % of modern level)
Mean atmospheric CO2 content over period duration	ca. 4500 ppm[2] (16 times pre-industrial level)
Mean surface temperature over period duration	ca. 21°C [3] (7°C above modern level)
Template:Dentren/Template Test graphical timeline