Diplocidaridae

{{Short description|Extinct family of sea urchins}}

{{Automatic taxobox

| fossil_range = {{fossil range|Jurassic}}[https://www.fossilworks.org The Paleobiology Database]

| image = Diplocidaridae - Diplocidaris gigantea.JPG

| image_caption = Fossil inner cast of Diplocidaris gigantea, on display at Galerie de paléontologie et d'anatomie comparée in Paris

| taxon = Diplocidaridae

| authority = Gregory, 1900

}}

Diplocidaridae is an extinct family of sea urchins.

These slow-moving low-level epifaunal grazer-omnivores lived in the Jurassic period, from 161.2 to 150.8 Ma.