Dinosaur Wiki

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21 June 2009

  • curprev 12:0412:04, 21 June 2009Iluvprimeval talk contribs 484 bytes +484 Created page with 'The Pennsylvanian is in the ICS geologic timescale the youngest subperiod or upper subsystem of the Carboniferous period. It lasted from roughly 318.1± 1.3 to 299± 0.8 Ma ...'