Phylum Echinodermata
Phylum Echinodermata
Phylum Echinodermata
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adambulacral - perradial - interradial sutures<br />
<strong>Echinodermata</strong> – classification – Eleutherozoa – Echinozoa – Echinoidea – regular echinoids<br />
Classification:<br />
- Arrangement of plates<br />
in apical disc<br />
- Morphology of lantern<br />
- Construction of<br />
perignathic girdle
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