An echinoderm is any animal of the phylum Echinodermata which includes starfish, brittle stars, sea urchins, sand dollars and sea cucumbers, as well as the ... Sea urchin · Sand dollar · Ctenocystoidea · Fromia indica |
Echinoderms (Phylum Echinodermata) are a diverse, exclusively marine group of invertebrates that consists of over 13,000 extinct species (15 classes) and 7,000 ... |
Introduction. Echinoderms (scientific name Echinodermata) are a major group of only marine animals. The name comes from the Greek word for "spiny skin". |
Echinoderms are a wide and differentiated phylum of animals that consist of five classes: Holothuroidea (sea cucumbers), Crinoidea (feather stars), Echinoidea ... |
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