Cothurnocystidae

Cothurnocystidae is an extinct family of stylophoran echinoderms in the order Cornuta.

It contains four subfamilies and six genera not assigned to subfamilies:
 * Chauvelicystinae
 * Ampelocarpus
 * Chauvelicystis
 * Flabellicarpus
 * Lyricocarpus
 * Milonicystis
 * Prochauvelicystis
 * Proscotiaecystis
 * Sokkaejaecystis
 * Cothurnocystinae
 * Cothurnocystis
 * Phyllocystinae
 * Scotiaecystinae
 * Bohemiaecystis
 * Scotiaecystis
 * Thoralicystis
 * Unassigned
 * Acuticarpus
 * Archaeocothurnus
 * Cardiocystella
 * Nevadaecystis
 * Ponticulocarpus
 * Trigonocarpus