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This is an archived version of a Tree of Life page. For up-to-date information, please refer to the current version of this page.


John G. Lundberg
taxon links [down<--]Actinopterygii extinct icon extinct icon extinct icon [up-->]Osteoglossomorpha [up-->]Ostariophysi [up-->]Salmoniformes [up-->]Esociformes [up-->]Scopelomorpha [up-->]Acanthomorpha Interpreting the tree
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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.

example of a tree diagram

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.

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Tree based on review by Nelson (1994). This initial treatment does not include several poorly-known extinct actinopterygians that will be added to the Tree of Life as expert contributors are located.
Containing group: Actinopterygii


Carroll, R. H. 1988. Vertebrate paleontology and evolution. W. H. Freeman & Co. New York.

Nelson, J. S. 1994. Fishes of the World. 3rd Ed. John Wiley & Sons, New York, N.Y.

Title Illustrations
Scientific Name Salmo trutta
Comments Brown Trout
Creator Eric Engbretson
Acknowledgements Photo courtesy U.S. Fish and Wildlife Service
Specimen Condition Live Specimen
Scientific Name Ictalurus punctatus
Comments Channel Catfish
Creator Eric Engbretson
Acknowledgements Photo courtesy U.S. Fish and Wildlife Service
Specimen Condition Live Specimen
About This Page

John G. Lundberg

The Academy of Natural Sciences
1900 Benjamin Franklin Parkway
Philadelphia, PA 19103 USA

Citing this page:

Lundberg, John G. 1995. Teleostei. Version 01 January 1995 (temporary). http://tolweb.org/Teleostei/15054/1995.01.01 in The Tree of Life Web Project, http://tolweb.org/

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This page is a Tree of Life Branch Page.

Each ToL branch page provides a synopsis of the characteristics of a group of organisms representing a branch of the Tree of Life. The major distinction between a branch and a leaf of the Tree of Life is that each branch can be further subdivided into descendent branches, that is, subgroups representing distinct genetic lineages.

For a more detailed explanation of the different ToL page types, have a look at the Structure of the Tree of Life page.

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