Eight-Segmented ZorapteransMichael S. Engel
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
The extinct subgenus Octozoros includes two middle Cretaceous species, both known from alates in Burmese amber (Engel and Grimaldi, 2002; Engel, 2003).
The Burmese amber species Zorotypus cretatus may belong to Octozoros but the holotype is too imperfectly preserved to permit definitive placement here. The species is, therefore, retained as incertae sedis within Zorotypus s.l.
The subgenus Octozoros can be recognized by the following suite of apomorphic traits (Engel, 2003):
- antenna reduced to eight segments
- jugate setae present along posterior margin of forewing
- empodium of meta-pretarsus strong and slightly expanded
Engel, M. S. 2003. Phylogeny of the Zoraptera. Entomologische Abhandlungen 61(2): 147-148.
Engel, M. S., and D. A. Grimaldi. 2002. The first Mesozoic Zoraptera (Insecta). American Museum Novitates 3362: 1-20.
Michael S. Engel
University of Kansas Natural History Museum, Lawrence, Kansas, USA
Correspondence regarding this page should be directed to Michael S. Engel at
Page copyright © 2005 Michael S. Engel
Page: Tree of Life Zorotypus (Octozoros) Authored by . Eight-Segmented Zorapterans.Michael S. Engel. The TEXT of this page is licensed under the Creative Commons Attribution License - Version 3.0. Note that images and other media featured on this page are each governed by their own license, and they may or may not be available for reuse. Click on an image or a media link to access the media data window, which provides the relevant licensing information. For the general terms and conditions of ToL material reuse and redistribution, please see the Tree of Life Copyright Policies.
- First online 19 January 2005
- Content changed 19 January 2005
Citing this page:
Engel, Michael S. 2005. Zorotypus (Octozoros) http://tolweb.org/Zorotypus_%28Octozoros%29/27786/2005.01.19 in The Tree of Life Web Project, http://tolweb.org/. Eight-Segmented Zorapterans. Version 19 January 2005 (temporary).