Table 1.

Results from fitting diversification-process models to the complete ultrametric cetacean tree and a tree truncated at 10 Ma. Models are ranked from best to worst, according to AIC scores and Akaike weights (wtAIC). dAIC scores indicate the difference between the candidate model and the best-fitting model. Also given is the log likelihood (Lk) for each model.

modelLkAICdAICwtAIC
complete ultrametric cetacean tree
Yule22.521−43.04200.569
DDX22.582−41.1641.8780.222
DDL22.521−41.0422.0000.209
tree truncated at 10 Ma
Yule−25.35452.70900.399
DDX−24.58053.1610.4520.318
DDL−24.70153.4020.6930.282