Which lineage of Echinoderms is made up of about 2000 species of brittle stars and basket stars, each with elongated, slender, somewhat snakelike arms surrounding a well-defined central disk?

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The description matches the characteristics of the Ophiuroidea lineage, which includes brittle stars and basket stars with elongated, slender, snakelike arms and a central disk. The other lineages of Echinoderms, such as Echinoidea, Holothuroidea, and Crinoidea, have different body plans and features.

Which Lineage of Echinoderms Is Made Up of About 2000