Definition
A sea lily is a stalked crinoid, a type of marine animal belonging to the class Crinoidea. These animals are attached to the seafloor by a stalk, resembling a flower on a stem. Imagine an underwater garden with delicate, swaying flowers! 🌷 They have feathery arms that extend from their central disc, which they use to capture plankton and other organic particles from the water. Sea lilies are filter feeders, playing an important role in marine ecosystems. They are found in deep-sea environments, often at considerable depths. Their ancient lineage dates back millions of years, with fossil records showing their presence in the Paleozoic era.