Figure 2.

Results. Lineage through time (LTT) plots observed for 1000 trees drawn randomly from the posterior distribution of the Beast analyses (plotted in yellow) to get a measure of uncertainty in our estimates. γ was calculated based on the consensus tree. For each group, the number of taxa included is indicated (see text for details) as well as the proportion of known diversity included. The best-fit model is indicated below each graph (DDL: diversity-dependent linear).