Scutellidae
Scutellidae is a family of sand dollars (flat sea urchins) in the superfamily Scutellidea. All genera except Scaphechinus are extinct. Genera , the World Register of Marine Species recognizes the following seven genera in this family: †Allaster Nisiyama, 1968 †Parascutella Durham, 1953 †Remondella Durham, 1955 †Samlandaster Lambert, in Lambert & Thiéry, 1914 Scaphechinus A. Agassiz, 1864 †Scutella Lamarck, 1816 †Scutulum Tournouër, 1869 References Clypeasteroida Extant Oligocene first appearances Echinoderm families