Figure 6.

Accuracy of parameter estimation summarized across 190 simulated trees with traits evolving under a BMVT model. To simulate the incompleteness of the fossil record, 80% of the extinct tips were dropped from the complete trees prior to their analysis. a–d) The log-transformed squared errors of parameter estimates based obtained from fitting BM, BMT, and BMVT models (when BMVT is true). e–h) The log squared errors of the estimated parameters plotted against tree size (after subsampling the extinct tips) under BMVT model. For ancestral states (d, h), we report the log-transformed mean squared error across all internal nodes of the tree.