strap is an R package designed to perform stratigraphic analysis of phylogenies, including basic time-scaling, visualisation of time-scaled trees, and applying stratigraphic congruence metrics.

You can install strap in R via CRAN with:

install.packages("strap", dependencies = TRUE)

Or from github with:

devtools::install_github("graemetlloyd/strap")

And load it into memory using:

library(strap)

Basic help can be found with:

?strap

And clicking on the Index link at the base of the help file will reveal links to every available function.

Bell, M. A. and Lloyd, G. T., 2015. strap: an R package for plotting phylogenies against stratigraphy and assessing their stratigraphic congruence. Palaeontology, 58, 379-389.