Get a phylogenetic tree with branch lengths proportional to geologic time (aka a chronogram) of any two or more lineages of interest to you: use this R package or go to www.datelife.org to make a query of chronograms available for your lineages in the Open Tree of Life’s tree store.
You can also date a phylogenetic tree of your own making (or choosing
one from the literature), using node ages from chronograms queried with
datelife and the congruification method (Eastman et
implemented with geiger (Harmon et
datelife has been developed as part of the
phylotastic (NSF-funded) project, and is
still under rapid development.
Get the stable version from CRAN:
Or, install the development version from the GitHub repository:
You can update the cached objects with the
If you use
datelife for a publication, please cite the R package and
#> Warning in citation("datelife"): no date field in DESCRIPTION file of package #> 'datelife'
O’Meara B, Sanchez Reyes L, Eastman J, Heath T, Wright A, Schliep K, Chamberlain S, Midford P, Harmon L, Brown J, Pennell M, Alfaro M (2019). datelife: Underlying Code for DateLife Web Service. https://github.com/phylotastic/datelife, http://www.datelife.org.
You can get these citations and the bibtex entry with:
This package is free and open source software, licensed under GPL.