Scutellidae

Scutellidae is a family of fossil sand dollars (flat sea urchins) in the superfamily Scutellidea. All genera except Scaphechinus are extinct.

Scutellidae Temporal range: Oligocene–Quaternary PreꞒ Ꞓ O S D C P T J K Pg N [1]
Fossils of Scutella paulensis from France, on display at Galerie de paléontologie et d'anatomie comparée in Paris
Scientific classification
Kingdom:	Animalia
Phylum:	Echinodermata
Class:	Echinoidea
Subclass:	Euechinoidea
Order:	Clypeasteroida
Superfamily:	Scutellidea
Family:	Scutellidae Gray, 1825[2]

Genera

As of 2017, the World Register of Marine Species recognizes the following seven genera in this family:[3]

• †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

• 
  Scaphechinus mirabilis (Suma Aqualife Park, Kobe, Japan)
• 
  Scutella paulensis (MNHN)
• 
  Scutella subrotunda (MNHN)

References

1. The Paleobiology Database
2. Gray, J. E. (1825). "An Attempt to divide the Echinida or Sea Eggs, into Natural Families". Annals of Philosophy. New Series. 10 (6): 427–428.
3. Kroh, A. (2012). Kroh A, Mooi R (eds.). "Scutellidae Gray, 1825". World Echinoidea Database. World Register of Marine Species. Retrieved 6 September 2017.