This tree diagram shows the relationships between several groups of organisms.
The root of the current tree connects the organisms featured in this tree to their containing group and the rest of the Tree of Life. The basal branching point in the tree represents the ancestor of the other groups in the tree. This ancestor diversified over time into several descendent subgroups, which are represented as internal nodes and terminal taxa to the right.
You can click on the root to travel down the Tree of Life all the way to the root of all Life, and you can click on the names of descendent subgroups to travel up the Tree of Life all the way to individual species.close box
Relationships after Nunn and Stanley 1998.
Brooke, M. 2004. Albatrosses and Petrels across the World. Oxford University Press, Oxford, New York.
Gill, F. and M. Wright. 2006. Birds of the World: Recommended English Names. Princeton NJ: Princeton University Press.
Nunn, G. B. and S. E. Stanley. 1998. Body size effects and rates of cytochrome b evolution in tube-nosed seabirds. Molecular Biology and Evolution 15:1360-1371.
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- First online 27 June 2008
- Content changed 27 June 2008
Citing this page:
Tree of Life Web Project. 2008. Pachyptila. Prions. Version 27 June 2008 (temporary). http://tolweb.org/Pachyptila/89337/2008.06.27 in The Tree of Life Web Project, http://tolweb.org/