The Valvatida are an order of starfish in the class Asteroidea, which contains 695 species in 172 genera in 17 families.

This order is primarily identified by the presence of conspicuous marginal ossicles, which characterize most of the species.

Most members of this order have five arms and two rows of tube feet with suckers.

Some species have paxillae and in some, the main pedicellariae are clamp-like and recessed into the skeletal plates.

[4] According to the World Register of Marine Species, the following families are included in Valvatida:[5]