Timetree – The Timescale of Life

Copyright © 2005 – 2025. Data and syntheses accessed from TimeTree are provided openly for personal research and teaching use. Requests to use these data for all other purposes must be sent to [email protected]. Redistribution of TimeTree data and its transformations are not permitted. Publications utilizing the TimeTree resource or data are encouraged to include a citation to TimeTree. Please write to [email protected] for clarifications.

Note: copyright holders expressly disclaim any warranty for processed study timetrees and other data accessed from these resources. Data are provided 'As Is' without any express or implied warranty of any kind, including but not limited to any warranties of merchantability, non-infringement, or fitness for a particular purpose.

CITE THIS RESOURCE AS: S. Kumar, M. Suleski, J.E. Craig, A.E. Kasprowicz, M. Sanderford, M. Li, G. Stecher, and S.B. Hedges, 2022. TimeTree 5: An Expanded Resource for Species Divergence Times. Molecular Biology and Evolution, DOI: 10.1093/molbev/msac174.