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. 2015 Jan 5;5:749. doi: 10.3389/fpls.2014.00749

FIGURE 1.

FIGURE 1

Inertinite abundance from the Late Cretaceous through the Cenozoic (65 to 0 Ma). Inertinite is the fossil charcoal content of coal. Data from Glasspool and Scott (2010), Supplementary Table S2. The median (squares) and upper and lower quartile values for each age bin are shown.