active sites directory

Active Sites Directory is a free directory which covers a large variety of sites organized by category. Browse thousands of web sites that are more focused on one particular aspect of Science, Biology, Flora and Fauna, Animalia, Chordata with just the click of your mouse.

Amphibia (278)
Aves (1,485)
Cephalochordata (9)
Fish (341)

Mammalia (1,427)
Reptilia (275)
Urochordata (21)

See also:

Science: Biology: Zoology: Chordates (370)
Science: Earth Sciences: Paleontology: Vertebrates (136)

This category in other languages:

Czech (27) German (167) Japanese (91)

http://tolweb.org/tree?group=Chordata&contgroup=Animals

» Chordata - Overview of the taxonomy of Phylum Chordata, which includes the well-known vertebrates (fishes, amphibians, reptiles, birds, mammals), hagfishes, tunicates, and lancelets.

http://www.fzi.uni-freiburg.de/VertebratesMOC/

» Database of Vertebrates and Centres of Vertebrate Diversity in Mozambique - The Database includes almost 3500 vertebrate species, taxonomic information, English, Portuguese and vernacular names, conservation status and numerous maps illustrating biodiversity hotspots and locations of endemic species.

http://ag.arizona.edu/ENTO/tree/eukaryotes/animals/chordata/gnathostomata.html

» Gnathostomata - Philippe Janvier's article about the jawed vertebrates in the Tree of Life website.

» North American Wildlife - Includes photographs and information on a wide range of mammals and reptiles from Canada, the United States and Mexico. Includes fact sheets and distribution maps.

http://animaldiversity.ummz.umich.edu/chordata.html

» Phylum Chordata - Brief introduction to the chordates, defined as organisms that possess a structure called a notochord, at least during some part of their development. Includes links to information about subgroups and representative animals.

http://www.mba.ac.uk/nmbl/publications/occpub/guide/section17.pdf

» Phylum Hemichordata, Urochordata and Cephalochordata - Illustrated description of these three phyla, and the three classes within Urochordata. Also information on the larval stages, when they form part of the plankton. [PDF]

http://animaldiversity.ummz.umich.edu/vertebrata.html

» Subphylum Vertebrata - What makes a vertebrate a vertebrate? They have more in common than a backbone. Find out more from the Animal Diversity Web.

http://tolweb.org/tree?group=Vertebrata&contgroup=Craniata

» Vertebrata - Introduction to the vertebrates and their classification, including the Hyperoartia, or lampreys, and the Gnathostomata, or jawed vertebrates.

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