Lizards, snakes, Sphenodon, and their extinct relatives
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.
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
Other Names for Lepidosauromorpha
- Lizards, snakes, Sphenodon, and their extinct relatives
Carroll, R. L. 1988. Vertebrate Paleontology and Evolution. W. H. Freeman, New York.
Carroll, R. L. 1988. Late Paleozoic and early Mesozoic lepidosauromorphs and their relation to lizard ancestry. Pages 99-118 in The Phylogenetic Relationships of the Lizard Families. (R. Estes and G. Pregill, eds.). Stanford University Press, Palo Alto.
deBraga, M. and O. Rieppel. 1997. Reptile phylogeny and the interrelationships of turtles. Zoological Journal of the Linnean Society 120:281-354.
Gauthier, J., R. Estes and K. de Queiroz. 1988. A phylogenetic analysis of Lepidosauromorpha. Pages 15-98 in The Phylogenetic Relationships of the Lizard Families. (R. Estes and G. Pregill, eds.). Stanford University Press, Palo Alto.
Hedges S. B. and L. L. Poling. 1999. A molecular phylogeny of reptiles. Science 283: 998-1001.
Rest, J. S., J. C. Ast., C. C. Austin, P. J. Waddell, E. A. Tibbetts, J. M. Hay, and D. P. Mindell. 2003. Molecular systematics of primary reptilian lineages and the tuatara mitochondrial genome. Molecular Phylogenetics and Evolution 29(2):289-297.
Rieppel, O. 1994. The Lepidosauromorpha: an overview with special emphasis on the Squamata. Pages 23-37 in In the Shadow of the Dinosaurs. (N. C. Fraser and H.-D. Sues, eds.) Cambridge University Press, Cambridge.
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Citing this page:
Tree of Life Web Project. 1995. Lepidosauromorpha. Lizards, snakes, Sphenodon, and their extinct relatives. Version 01 January 1995 (temporary). http://tolweb.org/Lepidosauromorpha/14917/1995.01.01 in The Tree of Life Web Project, http://tolweb.org/