• Science: Earth Sciences: Paleontology: Invertebrates: Echinoderms: Crinoids  (2)

• Comactinia echinoptera - Exercise from Invertebrate Anatomy OnLine covering the systematics and external anatomy of this feather star.
• Crinoid Creatures - Spectacular photographs and a brief article about modern crinoids.
• Crinoidea - Extensive article about modern and ancient crinoids by William I. Ausich and Charles G. Messing for the Tree of Life project.
• Promachocrinus kerguelensis - Photographs and information on this crinoid found in Antarctic waters.

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