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A fossil trapped in a crinoid.

Fossil Crinoid

A fossil trapped in a crinoid.

Crinoids that live in limestone.

Limestone Crinoids

Crinoids that live in limestone.

"Theses animals were all supported upon a long stalk, at the extremity of which they floated in the waters of the ancient seas, spreading their arms in every direction in search of the small animals whch consitituted its food." — Goodrich, 1859

Encrindae

"Theses animals were all supported upon a long stalk, at the extremity of which they floated in the…

"This may be considered as one of the greatest wonders of nature, it being a real animal, having blood, and feeding upon other marine animals, yet having the form of a plant, and living like a plant, fixed to a rock in the deep sea." — Goodrich, 1859

Medusa's head pentacrinus

"This may be considered as one of the greatest wonders of nature, it being a real animal, having blood,…

A sea lily or crinoidea.

Sea Lily

A sea lily or crinoidea.