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Fossilized Crinoids at the Museum of Natural History in Washington, D.C. The word 'crinoid' comes from the Greek word krinon, for "lily", and eidos, "form." (Wiki)

Crinoid: animal, same family as starfish, been around for 450 millions years

Crinoids fossils - Crinoids are marine animals that make up the class Crinoidea of the echinoderms. Crinoidea comes from the Greek word krinon, "a lily", and eidos, "form".

Crinoid fossil... Is it pathetic that I knew what this was before I read it? Stupid Earth Science.

Crinoid fossils. Rock containing crinoid (or sea lily) fossils. These are Scyphocrinus elegans crinoids from the Silurian/Devonian period (about 440-360 million years ago). Crinoids are marine echinoderms that appear as early as the Ordovician period (500 million years ago).

Fossil Crinoids (Uintacrinus socialis), Smithsonian National Museum of Natural History, Washington, D.C.