Athenacrinus Cross Section (IMAGE)

Field Museum

Athenacrinus Cross Section

Caption

A cross-section of a fossilized Athenacrinus arm. The dark-colored upside-down triangle shows the arm's internal plates, which were key to learning about how sea lily arms evolved.

Credit

(c) Field Museum, Tom Guensburg

Usage Restrictions

Please include credit to: (c) Field Museum, Tom Guensburg

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