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Phylum Hemichordata, Urochordata and Cephalochordata
43045
Phylum Hemichordata, Urochordata and Cephalochordata
http://www.mba.ac.uk/nmbl/publications/occpub/guide/section17.pdf
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.
Biology > Biota > Fauna > Chordata
Jan 6, 2008
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Philippe Janvier's article about the jawed vertebrates in the Tree of Life website.
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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.
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3. Vertebrata
Introduction to the vertebrates and their classification, including the Hyperoartia, or lampreys, and the Gnathostomata, or jawed vertebrates.
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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.
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What makes a vertebrate a vertebrate? They have more in common than a backbone. Find out more from the Animal Diversity Web.
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6. Chordata
Overview of the taxonomy of Phylum Chordata, which includes the well-known vertebrates (fishes, amphibians, reptiles, birds, mammals), hagfishes, tunicates, and lancelets.
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