Spatangus
''Spatangus'' is a genus of heart urchins in the Spatangidae family.Hansson, H. (2009)Spatangus Gray, 1825 Accessed through the World Register of Marine Species on 2 August 2010 The genus is synonymous with the previously recognised genera ''Prospatangus'' Lambert, 1902 and ''Spatagus''. There are nine recognised species. The type species is ''Spatangus purpureus'' Müller, 1776 by subsequent designation (Rowe & Gates, 1995). ''Spatangus'' comprises marine heart urchins that feed on subsurface deposits and graze. Fossil of heart urchins of this genus have been found in the sediments of Europe, United States, Egypt and Australia from Cretaceous to Pliocene (age range: 85.8 to 2.588 Ma). Species Species within this genus include: * '' Spatangus altus'' Mortensen, 1907 * '' Spatangus baixadoleitensis'' Maury, 1934a † * '' Spatangus beryl'' Fell, 1963 * '' Spatangus brissus'' * '' Spatangus californicus'' H.L. Clark, 1917 * '' Spatangus capensis'' Döderlein, 1905 * '' Spat ...
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