The Spatangidae are a family of heart urchins.

There are three recognised genera within the family; Granopatagus, Plethotaenia, and Spatangus.

[1] Additionally, Prospatangus was previously a recognised genus within the Spatangidae, but is now accepted as part of the genus Spatangus.

[1] The Spatangidae are marine heart urchins that feed on subsurface deposits and graze.

This article about a sea urchin is a stub.