Family richness of insects through time.

<p>Richness time series derived from (A) NEW data, presented here, (B) LAB data from Labandeira [<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0128554#pone.0128554.ref011" target="_blank">11</a>] and (C) FR2 data from Ross and Jarzembowski [<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0128554#pone.0128554.ref014" target="_blank">14</a>]. RT = range through, i.e. all taxa ranging anywhere into an interval, with maximum (+) and minimum (–) assumptions for FR2, plotted at stage-midpoints. BC = boundary crossers, i.e. taxa crossing interval boundaries, plotted at stage boundaries. MIN = minimum richness, representing firm occurrences within stages (i.e. first, last and single-interval taxa records).