Clypeaster

Clypeaster Temporal range: Late Eocene - Recent PreꞒ Ꞓ O S D C P T J K Pg N
Live Clypeaster reticulatus
Scientific classification
Kingdom:	Animalia
Phylum:	Echinodermata
Class:	Echinoidea
Order:	Clypeasteroida
Suborder:
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[]

• Clypeaster aloysioi (Brito, 1959)
• Clypeaster amplificatus Koehler, 1922
• Clypeaster annandalei Koehler, 1922
• Clypeaster australasiae (Gray, 1851)
• Clypeaster chesheri Serafy, 1970
• Clypeaster cyclopilus H.L. Clark, 1941
• Clypeaster durandi (Cherbonnier, 1959b)
• Clypeaster elongatus H.L. Clark, 1948
• Clypeaster euclastus H.L. Clark, 1941
• H.L. Clark, 1914
• H.L. Clark, 1924
• H.L. Clark, 1925
• Koehler, 1922
• Clypeaster humilis (Leske, 1778)
• Serafy, 1971
• Clypeaster japonicus Döderlein, 1885
• Pawson & Phelan, 1979
• H.L. Clark, 1914
• (Lamarck, 1816)
• A. Agassiz & H.L. Clark, 1907
• Mortensen, 1948
• A. Agassiz & H.L. Clark, 1907
• Lambert, 1912 †
• H.L. Clark, 1925
• Deraniyagala, 1956 †
• Mortensen, 1948
• H.L. Clark, 1914
• Ikeda, 1935
• Krau, 1952
• H.L. Clark, 1914
• Mortensen, 1948
• (Ravenel, 1845)
• Desmoulins, 1835
• de Meijere, 1903
• (A. Agassiz, 1869)
• Clypeaster reticulatus (Linnaeus, 1758)
• Clypeaster rosaceus (Linnaeus, 1758)
• (A. Agassiz, 1863)
• Verrill, 1870
• Clypeaster subdepressus (Gray, 1825)
• H.L. Clark, 1914
• (Tension-Woods, 1878)
• Döderlein, 1885

^[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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