''Coelopleurus'' is an extant

genus Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...

echinoid Sea urchins or urchins () are echinoderms in the class Echinoidea. About 950 species live on the seabed, inhabiting all oceans and depth zones from the intertidal zone to deep seas of . They typically have a globular body covered by a spiny p ...

s with fossil records dating back to the

Eocene The Eocene ( ) is a geological epoch (geology), epoch that lasted from about 56 to 33.9 million years ago (Ma). It is the second epoch of the Paleogene Period (geology), Period in the modern Cenozoic Era (geology), Era. The name ''Eocene'' comes ...

, with remains found in

Europe Europe is a continent located entirely in the Northern Hemisphere and mostly in the Eastern Hemisphere. It is bordered by the Arctic Ocean to the north, the Atlantic Ocean to the west, the Mediterranean Sea to the south, and Asia to the east ...

and

North America North America is a continent in the Northern Hemisphere, Northern and Western Hemisphere, Western hemispheres. North America is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South Ameri ...

Characteristics

These abyssal sea urchins are characterized by their surprisingly bright color pattern, usually red and white. Even more surprisingly, their tests (skeletons) are brightly colored, too, even after drying, or sometimes fossilization..

Species

According to

World Register of Marine Species The World Register of Marine Species (WoRMS) is a taxonomic database that aims to provide an authoritative and comprehensive catalogue and list of names of marine organisms. Content The content of the registry is edited and maintained by scien ...

: * '' Coelopleurus australis'' H.L. Clark, 1916 * '' Coelopleurus carolinensis'' Cooke, 1941a † * '' Coelopleurus castroi'' Maury, 1930 † * '' Coelopleurus exquisitus'' Coppard & Schultz, 2006 * '' Coelopleurus floridanus''

Agassiz Jean Louis Rodolphe Agassiz ( ; ) FRS (For) FRSE (May 28, 1807 – December 14, 1873) was a Swiss-born American biologist and geologist who is recognized as a scholar of Earth's natural history. Spending his early life in Switzerland, he recei ...

, 1872 * '' Coelopleurus granulatus'' Mortensen, 1934 * '' Coelopleurus interruptus'' Döderlein, 1910 * '' Coelopleurus longicollis''

& H.L. Clark, 1908 * ''

Coelopleurus maculatus ''Coelopleurus'' is an extant genus of echinoids with fossil records dating back to the Eocene, with remains found in Europe and North America. Characteristics These abyssal sea urchins are characterized by their surprisingly bright color pat ...

& H.L. Clark, 1907 * '' Coelopleurus maillardi'' (Michelin, 1862) * '' Coelopleurus melitensis'' Zammit-Maempel, 1969 † * '' Coelopleurus singularis'' Nisiyama, 1966 * '' Coelopleurus undulatus'' Mortensen, 1934a * '' Coelopleurus vittatus'' Koehler, 1927 Fossil species: * †''Coelopleurus elegans'' (Bell), from the Pleistocene of the Jizo-do formation of Japan ''Coelopleurus elegans'' (Bell)
at museum.tohoku.ac.jp

References

External links

''Coelopleurus''
in the

Paleobiology Database The Paleobiology Database (PBDB) is an online resource for information on the distribution and classification of fossil animals, plants, and microorganisms. History The Paleobiology Database originated in the NCEAS-funded Phanerozoic Marine Pale ...

* Arbacioida Extant Eocene first appearances Paleogene echinoderms of Europe Prehistoric echinoderms of North America Echinoidea genera {{echinoidea-stub

Characteristics

Species

References

Further reading

External links