Aspidodiadema is a genus of echinoderms belonging to the family Aspidodiadematidae.

[2] The test is small and subglobular with fragile plating which is firmly tessellated.

The primary tubercles form an alternate series down the perradius.

The peristome has shallow, rounded buccal notches.

The lumens are filled with a mesh of horizontal dividers and vertical pillars.