Time Tree

TIMETREE is a public knowledge-base for information on the timescale of life. It uses a hierarchical system to identify all published molecular time estimates bearing on the divergence of two taxa (e.g., species). Access to these data is through the search menu below by finding the divergence time of two taxa or all estimates published by a single author. For additional information on the methods used, see How It Works (below), About Us, and FAQs. A Consortium of scientists provides guidance and quality assurance.

For those interested in published summaries of divergence times for a diversity of organisms, see articles in Trends in Genetics (2003; 19:200-206) and Nature Reviews Genetics (2002; 3:838-849). For a history of molecular clocks , see the article in Nature Reviews Genetics (2005; 6:654-662).

Find Time of Divergence
Currently available taxa: mammals, birds, amphibians, reptiles

Articles:
181

Authors:
511

Divergence Times:
2,923

Visitors:

Updated On:
July 6, 2007

Citing TimeTree:
Hedges SB, Dudley J & Kumar S (2006) TimeTree: a public knowledge-base of divergence times among organisms. Bioinformatics (22:2971-2972). (pdf)

Warning:. Substantial duplication is not permitted. We encourage wide use of this resource, but until it is complete it should not be used to represent a synthesis for any taxonomic group. Consult the authors if you have any questions about appropriate use, or if you plan to publish results from the database.