Under Construction

Capnia in part 1

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<--]Capniidae 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
Unpublished tree from matrix in "capnia data 16 Oct 1991" by C. R. Nelson
Containing group: Capniidae

Introduction

This Nearctic assembly of groups of species of Capnia is monophyletic, but species from the Palearctic have not been studied in detail to see if they belong in this group of groups. Pending such observations I hesitate giving it a formal name. The group names contained herein are taken from Nelson & Baumann (1989).

Characteristics

Synapomorphies for Capnia: Various authors have placed any capniid of unknown generic affinities into the genus Capnia. No synapomorphies are known which circumscribe all, or even most, of the species placed in "Capnia". The informal recognition of this "group or groups" is a step in ameliorating this situation. This group, "Capnia, in part, 1" is united as such by the synapomorphy of UNDER CONSTRUCTION see characters 5 and 35 in matrix of "capnia data of 16 Oct 1991".

References

Nelson, C. R. & R. W. Baumann. 1989. Systematics and distribution of the winter stonefly genus Capnia (Plecoptera: Capniidae) in North America. Great Basin Natur. 49: 289-363.

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 Capnia gracilaria
Location Colorado
Copyright © 1996
About This Page

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

All Rights Reserved.

Citing this page:

Nelson, C. Riley. 1996. Capnia in part 1. Version 01 January 1996 (under construction). http://tolweb.org/Capnia_in_part_1/14106/1996.01.01 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

Capnia in part 1

Page Content

articles & notes

collections

people

Explore Other Groups

random page

  go to the Tree of Life home page
top