The first and last occurrences of hexapod families in the fossil record are compiled from
publications up to end-2009. The major features of these data are compared with those of …

In modern evolutionary divergence analysis the role of geological information extends
beyond providing a timescale, to informing molecular rate variation across the tree. Here I …

Time-scales estimated from sequence data play an important role in molecular ecology.
They can be used to draw correlations between evolutionary and palaeoclimatic events, to …

Calibration is a critical step in every molecular clock analysis but it has been the least
considered. Bayesian approaches to divergence time estimation make it possible to …

In Bayesian divergence time estimation methods, incorporating calibrating information from
the fossil record is commonly done by assigning prior densities to ancestral nodes in the …

Primates have long been a test case for the development of phylogenetic methods for
divergence time estimation. Despite a large number of studies, however, the timing of …

Estimation of divergence times is usually done using either the fossil record or sequence
data from modern species. We provide an integrated analysis of palaeontological and …

Molecular dating has now become a common tool for many biologists and considerable
methodological improvements have been made over the last few years. However, the …

We extend our recently developed Markov chain Monte Carlo algorithm for Bayesian
estimation of species divergence times to allow variable evolutionary rates among lineages …

Among insects, eusocial behavior occurs in termites, ants, some bees and wasps. Isoptera
and Hymenoptera convergently share social behavior, and for both taxa its evolution …