Crinoids are Echinoderms. They are distinguished by the fact that they are fixed, during the whole or a portion of the life of the animal, to submarine objects by means of a jointed flexible stalk or column.

Crinoid

Crinoids are Echinoderms. They are distinguished by the fact that they are fixed, during the whole or…

Crinoids are Echinoderms. They are distinguished by the fact that they are fixed, during the whole or a portion of the life of the animal, to submarine objects by means of a jointed flexible stalk or column.

Crinoid

Crinoids are Echinoderms. They are distinguished by the fact that they are fixed, during the whole or…

A Radiate Echinoderm, a Crinoid, Encrinus liliiformis.

Cinoid

A Radiate Echinoderm, a Crinoid, Encrinus liliiformis.

The echinoderm, the crinoid or feather-star.

Crinoid

The echinoderm, the crinoid or feather-star.

A modern crinoid showing steam with root or hold-fast attachment, and a crown composed of the calyx and branching arms.

Crinoid

A modern crinoid showing steam with root or hold-fast attachment, and a crown composed of the calyx…

An extinct lily crinoid.

Lily Crinoid

An extinct lily crinoid.

An ancient crinoid, sea lilies are flowerlike, with branching arms surrounding the central mouth.

Sea Lily

An ancient crinoid, sea lilies are flowerlike, with branching arms surrounding the central mouth.

An ancient crinoid, stone lilies are flowerlike, with branching arms surrounding the central mouth.

Stone Lily

An ancient crinoid, stone lilies are flowerlike, with branching arms surrounding the central mouth.

A sea lily or crinoidea.

Sea Lily

A sea lily or crinoidea.