Clypeaster

Clypeaster Temporal range: Late Eocene - Recent PreꞒ Ꞓ O S D C P T J K Pg N
Live Clypeaster reticulatus
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Echinodermata
Class:	Echinoidea
Order:	Clypeasteroida
Family:	Clypeasteridae
Genus:	Clypeaster Lamarck , 1801

Clypeaster, common name "cake urchins" or "sea biscuits", is a genus of echinoderms belonging to the family Clypeasteridae.

Etymology

The genus name Clypeaster is derived from the Latin “clypeus” (meaning round shield) and “aster” (meaning star), with reference to the shape of these organisms.

List of species

^[1]

Gallery

• 
  Clypeaster reticulatus
• 
  Fossil of Clypeaster bowersi the San Diego Natural History Museum, California
• 
  Fossil of Clypeaster insignis at the San Diego County Fair, California
• 
  Fossil of Clypeaster portentosus at the Museo Arqueológico Municipal de Cartagena
• 
  Clypeaster rosaceus (aboral and internal views), by Ernst Haeckel in Kunstformen der Natur (1904).
• 
  Clypeaster japonicus.

References

• Clypeaster Lamarck, 1801^{[permanent dead link]}
• Animal Diversity
• National History Museum
• Sepkoski, Jack Sepkoski's Online Genus Database
• Paleobiology Database

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