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Pogonophora - English
URL: http://phylogeny.arizona.edu/tree/eukaryotes/animals/pogonophora/pogonophora.htm

Part of Tree of Life - Classification from Brusca and Brusca (1990).

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Introduction to the Pogonophora - English
URL: http://www.ucmp.berkeley.edu/annelida/pogonophora.html

About 80 pogonophoran species are known today, with new species still being discovered. One of the most spectacular zoological discoveries of recent years was the finding in 1977 of giant pogonophoran worms, 1.5 meters long, growing in heated, sulfur-rich water around warm-water vents in the Pacific Ocean, 2600 meters below the surface (pictured at right). These worms are sometimes placed in their own phylum, the Vestimentifera, but they are similar to pogonophorans in most respects, and the current tendency is to group these rift-dwelling worms together with the rest of the Pogonophora into one phylum.

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GIF image 236x384 pixels - English
URL: http://seawifs.gsfc.nasa.gov/OCEAN_PLANET/IMAGES/G-509.gif

Photo.

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Tube worms [This Dynamic Earth, USGS] - English
URL: http://pubs.usgs.gov/publications//text/tube_worms.html

Photo.

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Animals - CACB Biota - English
URL: http://www.uwgb.edu/biodiversity/biota/Animals.htm

Diversity of Animals, History of Animals, Links.

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