Araeosoma Paucispinum
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''Araeosoma'' is a genus of deep-sea
sea urchin Sea urchins or urchins () are echinoderms in the class (biology), 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 cove ...
s in the family Echinothuriidae.


Description and characteristics

Species in this genus are distinguished from other Echinothuriidae by their lack of ophicephalous pedicellariae (despite presence of dactylous ones), and the presence of prominent membranous gaps along horizontal sutures in interambulacral zones of both oral and aboral surfaces.


Taxonomy

The World Echinoidea Database recognises these species:Kroh, A. (2015),
Araeosoma
' Mortensen, 1903. In: Kroh, A. & Mooi, R. (2015) World Echinoidea Database (
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 ...
).
* '' Araeosoma alternatum'' Mortensen, 1934 * '' Araeosoma anatirostrum'' Anderson, 2013 * '' Araeosoma bakeri'' Anderson, 2013 * '' Araeosoma belli'' Mortensen, 1903 * '' Araeosoma bidentatum'' Anderson, 2013 * '' Araeosoma brunnichi'' Ravn, 1928 † * '' Araeosoma coriaceum'' (
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 ...
, 1879)
* '' Araeosoma eurypatum''
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 ...
&
Clark Clark is an English language surname with historical links to England, Scotland, and Ireland, ultimately derived from the Latin ''clericus'' meaning "scribe", "secretary" or a scholar within a religious order, referring to someone who was educated ...
, 1909
* '' Araeosoma fenestratum'' (Thomson, 1872) * '' Araeosoma leppienae'' Anderson, 2013 * '' Araeosoma leptaleum''
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 ...
&
Clark Clark is an English language surname with historical links to England, Scotland, and Ireland, ultimately derived from the Latin ''clericus'' meaning "scribe", "secretary" or a scholar within a religious order, referring to someone who was educated ...
, 1909
* '' Araeosoma migratum'' Anderson, 2013 * '' Araeosoma mortenseni'' Ravn, 1928 † * '' Araeosoma owstoni'' Mortensen, 1904 * '' Araeosoma parviungulatum'' Mortensen, 1934 * '' Araeosoma paucispinum'' H.L. Clark, 1925 * '' Araeosoma splendens'' Mortensen, 1934 * '' Araeosoma tertii'' Anderson, 2013 * '' Araeosoma tessellatum'' (
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 ...
, 1879)
* '' Araeosoma thetidis'' (
Clark Clark is an English language surname with historical links to England, Scotland, and Ireland, ultimately derived from the Latin ''clericus'' meaning "scribe", "secretary" or a scholar within a religious order, referring to someone who was educated ...
, 1909)
* '' Araeosoma violaceum'' Mortensen, 1903 "†" means an
extinct Extinction is the termination of an organism by the death of its Endling, last member. A taxon may become Functional extinction, functionally extinct before the death of its last member if it loses the capacity to Reproduction, reproduce and ...
taxon In biology, a taxon (back-formation from ''taxonomy''; : taxa) is a group of one or more populations of an organism or organisms seen by taxonomists to form a unit. Although neither is required, a taxon is usually known by a particular name and ...
.


References

{{Taxonbar, from=Q3461559 Extant Pliocene first appearances Taxa named by Ole Theodor Jensen Mortensen Echinoidea genera