''Diplocidaridae'' is an extinct family of

sea urchin Sea urchins or urchins () are echinoderms in the class (biology), class Echinoidea. About 950 species live on the seabed, inhabiting all oceans and depth zones from the intertidal zone to deep seas of . They typically have a globular body cove ...

s. These slow-moving low-level epifaunal grazer-omnivores lived in the

Jurassic The Jurassic ( ) is a Geological period, geologic period and System (stratigraphy), stratigraphic system that spanned from the end of the Triassic Period million years ago (Mya) to the beginning of the Cretaceous Period, approximately 143.1 Mya. ...

period, from 161.2 to 150.8 Ma.

Generas

*'' Diplocidaris'' Desor, 1855 *'' Tetracidaris'' Cotteau, 1872

References

Oxfordian first appearances Jurassic extinctions Prehistoric echinoderm families {{paleo-echinoidea-stub