Taxato know Phylum Echinodermata

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Taxato know Phylum Echinodermata Powered By Docstoc
					ECHINODERMATA

Sea stars
Brittle Stars
Sea urchins and sand dollars
Crinoids and Blastoids
Sea cucumbers




Taxa to know:
Phylum Echinodermata

 Class   Crinoidea
 Class   Blastoidea
 Class   Ophiuroidea
 Class   Asteroidea
 Class   Echinoidea




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Phylum Echinodermata
 Skeleton of ossicles (calcite plates)
 Many have spines
 Water Vascular System
 Tube feet in ambulacral areas
 (pores)
 Interambulacral areas (no pores)
 Pentameral Symmetry
 Deuterostomes




Phylum Echinoidermata




                                         2
Phylum Echinodermata




Fossil Echinoderms
                       Fossil sea strars.
                       Cozy Dell Fm.
                       California. Eoc.




                                            3
Fossil Echinoderms

                     Crinoid, Middle Cambrian,
                     Utah, Box Elder Co.




Fossil Echinoderms




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posted:5/25/2010
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