Oh my goodness! Unless you are a Tree of Life developer, you really shouldn't be here. This page is part of our beta test site, where we develop new features for the ToL, often messing up a thing or two in the process. Please visit the official version of this page, which is available here.
Under Construction

Taenionema

C. Riley Nelson
Click on an image to view larger version & data in a new window
Click on an image to view larger version & data in a new window
taxon links [down<--]Taeniopterygidae Interpreting the tree
close box

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.

close box
Tree from Stanger & Baumann 1993.
Containing group: Taeniopterygidae

Introduction

Thirteen species of Taenionema are currently recognized (Stanger & Baumann 1993). Most are found in western North America with a single species in eastern North America and another single species found in Japan and eastern Asia.

Characteristics

Stanger and Baumann (1993) used the suggestions of Ricker and Ross (1975) to list the synapomorphies of the genus as: 1. The epiproct is narrow with the tip bent back or otherwise modified. The tip is sharply pointed from a lateral aspect and slightly scooped out behind. 2. The basicercal processes are rounded, elongate, either fleshy or narrow, and are directed mostly dorsaly with the tip narrowed and curved back. 3. The posterolateral corners of sternum 9 in the male are slightly to moderately elevated, with the middle region of the hind margin of the sternum depressed. Stanger and Baumann (1993) produced the matrix for the species in the genus along with the tree that is used on this page.

References

Ricker, W. E. and H. H. Ross. 1975. Synopsis of the Brachypterinae (Insecta: Plecoptera: Taeniopterygidae). Canad. J. Zool. 53: 132-153.

Stanger, J. A. and R. W. Baumann. 1993. A revision of the stonefly genus Taenionema (Plecoptera: Taeniopterygidae). Trans. Amer. Entomol. Soc. 119: 171-229.

Title Illustrations
Click on an image to view larger version & data in a new window
Click on an image to view larger version & data in a new window
Scientific Name Taenionema pallidum
Location New Mexico
Specimen Condition Live Specimen
Copyright © 1996
About This Page

C. Riley Nelson
Brigham Young University, Provo, Utah, USA

All Rights Reserved.

Citing this page:

Nelson, C. Riley. 1996. Taenionema. Version 01 January 1996 (under construction). http://tolweb.org/Taenionema/14392/1996.01.01 in The Tree of Life Web Project, http://tolweb.org/

edit this page
close box

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.

close box

Taenionema

Page Content

articles & notes

collections

people

Explore Other Groups

random page

  go to the Tree of Life home page
top