See text Spatangus is a genus of heart urchins in the Spatangidae family.

[1] The genus is synonymous with the previously recognised genera Prospatangus Lambert, 1902 and Spatagus.

The type species is Spatangus purpureus Müller, 1776 by subsequent designation (Rowe & Gates, 1995).

[1] Spatangus comprises marine heart urchins that feed on subsurface deposits and graze.

[1] Fossil of heart urchins of this genus have been found in the sediments of Europe, United States, Egypt and Australia from Cretaceous to Pliocene (age range: 85.8 to 2.588 Ma).