Isocrinida is an order of sea lilies which contains four extant families.

Members of this order are characterised by having a "heteromorphic" stalk; the stalk consists of a series of nodes with cirri, interspersed by several nodes without cirri.

There are additionally a whorl of cirri at the base on which the animal perches.

The calyx is a shallow cup consisting of five basals and five radials.

This article about a crinoid is a stub.