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Username Sign Up ... Remember me for 3 week ... Test: Echinodermata - 20 Questions...
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The phylum Echinodermata, which contains about 6000 species, gets its name from the Greek, literally meaning "spiny skin." This phylum exists exclusively in the sea and includes sea stars, urchins, brittle stars, and sea cucumbers.
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www.oceaninn.com/guides/echino.htm
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Invertebrate – Animals that lack a back-bone (vertebrae). ... There are 5 related classes in the phylum Echinodermata (the Latin name means "spiny-skinned"). For a detailed list with all classifications click here:
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www.starfish.ch/reef/echinoderms.html
www.starfish.ch/reef/echinoderms.html
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Echinoderms have been compared to living, moving castles. Castles are made of interlocking blocks, with a single main entrance and numerous slit windows for air and for defense. Echinoderm skeletons are made up of ... Source: Hyman, L. H. 1955. The Invertebrates. Volume IV: Echinodermata. McGraw-Hill, New York.
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www.ucmp.berkeley.edu/echinodermata/echinomm.html
www.ucmp.berkeley.edu/echinodermata/echinomm.html
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Summary phylogenetic hypothesis of the Echinodermata, based on David and Mooi (1997), Littlewood et al. (1997), and Sumrall and Sprinkle (1997). Note that the phylogenetic position of most fossil echinoderms is still uncertain, and a number of additional extinct taxa will be added to this tree in the future.
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tolweb.org/tree?group=Echinodermata&contgroup=Deuterost...
tolweb.org/tree?group=Echinodermata&contgroup=Deuterostomia
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Containing group: Echinodermata ... Kerr, A. 2000. Evolution and Systematics of Holothuroidea (Echinodermata). Thesis, Yale University. ... other Echinodermata...
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tolweb.org/tree?group=Holothuroidea&contgroup=Echinoder...
tolweb.org/tree?group=Holothuroidea&contgroup=Echinodermata
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The phylum Echinodermata is an extremely large, well-known phylum containing many familiar organisms, including starfish, sea urchins, and sand dollars. All echinoderms have several things in common, making members of this phylum easily recognizable.
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www.angelfire.com/mo2/animals1/phylum/echinodermata.htm...
www.angelfire.com/mo2/animals1/phylum/echinodermata.html
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PHYLUM ECHINODERMATA ... CLASS Crinoidea: Sea Lilies and Feather stars ... SUBCLASS Asteroidea: Sea stars...
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faculty.vassar.edu/mehaffey/academic/animalstructure/ou...
faculty.vassar.edu/mehaffey/academic/animalstructure/outlines/echinodermata.html
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The phylum Echinodermata includes the sea urchins, sea stars, sea cucumbers, and starfish. Most adults have radial symmetry, while their larvae are bilaterally symmetrical. Echinoderms have an endoskeleton consisting of ... Lobe-finned fishes and early amphibians also had lungs and internal nares to respire air.
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www.emc.maricopa.edu/faculty/farabee/BIOBK/BioBookDiver...
www.emc.maricopa.edu/faculty/farabee/BIOBK/BioBookDiversity_9.html
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