phoronida wikipedia - EAS
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Phoronids (scientific name Phoronida, sometimes called horseshoe worms) are a small phylum of marine animals that filter-feed with a lophophore (a "crown" of tentacles), and build upright tubes of chitin to support and protect their soft bodies. They live in most of the oceans and seas,
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See moreThe bottom end of the body is an ampulla (a flask-like swelling), which anchors the animal in the tube and enables it to retract its body very quickly when threatened. When the lophophore is extended at the top of the body,
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See moreBody structure
Most adult phoronids are 2 to 20 cm long and about 1.5 mm wide, although the largest are 50 cm long. Their skins have no cuticle but...
See morePhoronids live in all the oceans and seas including the Arctic and excepting the Antarctic Ocean, and appear between the intertidal zone and about 400 meters down. Some occur
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See moreThe phylum has two genera, with no class or order names. Zoologists have given the larvae, usually called an actinotroch, a separate genus name from the adults.
In 1999 Temereva and Malakhov described Phoronis svetlanae. In 2000 Temereva described a...
See more• PHORONIDA
• Phoronida World database
• Phoronidae – Guide to the Marine Zooplankton of south eastern Australia, Tasmanian Aquaculture & Fisheries Institute...
See moreFossil record
As of 2016 there are no indisputable body fossils of phoronids. Researching the Lower Cambrian Chengjiang fossils, in 1997 Chen and Zhou...
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Los foronídeos (Phoronida) son un pequeño filo de lofoforados vermiformes tubícolas. Se conocen dos géneros y unas 20 especies.
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