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
See the papers listed in the References section. This tree does not include most of the diverse extinct lineages of the early Paleozoic.
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Boore, J.L., D. V. Lavrov, and W.M. Brown. 1998. Gene translocation links insects and crustaceans. Nature 392:667-668.
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Brusca, R.C. 2000. Unraveling the history of arthropod diversification. Annals of the Missouri Botanical Garden 87:13-25.
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Budd, G. E. 2002. A palaeontological solution to the arthropod head problem. Nature 417:271-275.
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Edgecombe, G. D., G. D. F. Wilson, D. J. Colgan, M. R. Gray, and G. Cassis. 2000. Arthropod cladistics: Combined analysis of histone H3 and U2 snRNA sequences and morphology. Cladistics 16:155-203.
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Friedrich, M. and D. Tautz. 2001. Arthropod rDNA phylogeny revisited: a consistency analysis using Monte Carlo simulations. Pages 21-40 in Origin of the Hexapoda. T. Deuve, ed. Annales de la Société entomologique de France 37.
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Giribet, G. and C. Ribera. 1998. The position of arthropods in the animal kingdom: A search for a reliable outgroup for internal arthropod phylogeny. Molecular Phylogenetics and Evolution 9:481-488.
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Janzen, J.-W. 2002. Arthropods in Baltic Amber. Ampyx-Verlag, Halle (Saale).
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- Deep Arthropod Phylogeny Project
- Introduction to the Arthropoda. UCMP Berkeley.
- The Arthropod Story. From the Understanding Evolution web site.
- BugGuide.Net. An online community of naturalists who enjoy learning about and sharing observations of insects, spiders, and other related creatures.
- Insect and Spider Collections of the World.
- International Society of Myriapodology and Onychophorology.
- Hawaiian Terrestrial Arthropod Bibliography.
- Project ALAS: Arthropods of La Selva.
- Biological Survey of Canada: Terrestrial Arthropods.
- A Pictographic Key to Leaf Litter Arthropods from the Missouri Ozark Forest Ecosystem Project (MOFEP).
- Sonoran Arthropod Studies Institute.
- Arthropod Trackways. University of Bristol Earth Sciences Department.
- Arthropods in Baltic Amber. Jens-Wilhelm Janzen.
- C.O.R.E.: Research on the 'Orsten' and 'Orsten'-Type Fossils.
- Images: Insects and Their Relatives. Department of Entomology, University of Nebraska-Lincoln.
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