Echinodermata - ดาวน์โหลดหนังสือ 1-13 หน้า

Echinodermata · They are round or elongated and have a star-like appearance · They are only marine creatures · The creatures have spiky skin

Echinodermata ) from the Champlainian Guttenberg Forma- tion of the Upper Mississippi Valley Region J Paleontol 5 : 631-653

echinodermata An echinoderm is any deuterostomal animal of the phylum Echinodermata which includes starfish, brittle stars, sea urchins, sand dollars and sea cucumbers,

echinodermata Phylum Echinodermata spiny-skinned animals all marine adults have radial symmetry larvae have bilateral symmetry Class Asteroidea