Posterior probabilities of nectar secretion or no nectar secretion at ancestral nodes within the Disholcaspis phylogeny.

Posterior probabilities of nectar secretion or no nectar secretion at ancestral nodes within the Disholcaspis phylogeny (nodes numbered in insert). Posterior probabilities of ancestral character states are presented for the full set of models visited in the rjMCMC run (columns 2 & 3), those under a symmetric reversible model (columns 4 & 5) and under a model where the rate of change of nectar to no nectar was fixed at zero (columns 6 & 7). The final set of columns indicate likelihoods of models run with the respective node fixed to one or other character state, and the result of a Bayes factor test comparing the two models.