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Crinoidea

Sea Lilies, Feather Stars

AB
Chrinoidealilylike, most closely resembles Cambrian fossils
sessilenot free living, they have a long stalk that is attached to rocks or the sea bottom
mouth faces upunlike any other echinoderm, the crinoid mouths do not face the sea bottom
pentaradialfive arms extend from the body branch out to form many more arms; up to 200
sticky tube feetlocated at the end of each arm capture food and serve as a respiratory surface
nervous systemno brain!
circulatory systemnot here!
excretory systemforget it!
respiratory systemI don't think so!

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