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.
For more information on ToL tree formatting, please see Interpreting the Tree or Classification. To learn more about phylogenetic trees, please visit our Phylogenetic Biology pages.close box
Coddington, J. A. and H. W. Levi. 1991. Systematics and evolution of spiders (Araneae). Annual Review of Ecology and Systematics 22:565-592.
Gil, S. G. R., L. M. Mola, A. G. Papeschi, and C. L. Scioscia. 2002. Cytogenetic heterogeneity in common haplogyne spiders from Argentina (Arachnida, Araneae). Journal of Arachnology 30:47-56.
Huber, B. A. 2000. New world pholcid spiders (Araneae : Pholcidae): A revision at generic level. Bulletin of the American Museum of Natural History 254:4-348.
About This Page
Page copyright © 1995 David R. Maddison
Citing this page:
Maddison, David R. 1995. Haplogynae. Version 01 January 1995 (temporary). http://tolweb.org/Haplogynae/2650/1995.01.01 in The Tree of Life Web Project, http://tolweb.org/