(crinoids, blastoids, starfishes, sea lilies, and sea urchins) Sea animals covered with calcite plates or spines. They could be free-swimming or found attached to the sea bottom. They usually have a five-fold radial symmetry.
a large group of invertebrates that have radial symmetry and no heads (Phylum Echinodermata). All are marine and benthonic (live on or in the bottom). They have an internal skeleton and a special network of water-filled canals that move their tube feet. Sea stars, sea urchins, and sea cucumbers are all echinoderms.
A group (phylum) of marine invertebrates with skeletal plates in the skin and often five axes of symmetry; eg. sea urchins, sea cucumbers, sea stars and sea lilies.
Any of a phylum (Echino- dermata) of radially symmetrical coelomate marine animals including the starfishes, sea urchins, and related forms. [Go to source
Phylum of spiny-skinned marine invertebrates. They are highly variable and include starfish, sea urchins, brittle stars, and sea cucumbers.
The phylum of invertebrates that includes crinoids, sea stars ("starfish"), and sea anemones.
A diverse group of organisms(including the crinoids and the blastoids) whose members characteristically exhibit five-fold symmetry (a modern-day example of an echinoderm is the sea urchin) Geologic Range: Cambrian to Recent
A member of the class Echinodermata comprising sea urchins and sea cucmbers. The skin of the typical species is covered with spines.
marine animals having radiating parts, like sea urchins, sea stars and sea cucumbers
(Pronounced 'ee-kai-no-derms'.) Animals from the Phylum Echinodermata. They are symmetrical along five axes and have tube feet and spines. Examples include sea stars, brittle stars, sea cucumbers, sand dollars and sea urchins.
the group of animals that includes seastars, sea urchins and bêche-de-mer (‘sea cucumbers' or trepang).
The collective name given to marine invertebrates, including Echinoids and Crinoids.
