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Paratropical subsea : ウィキペディア英語版 | Paratropical subsea A Paratropical subsea is a high-latitude body of water within a paratropical province and one in which the temperature regularly falls below 20 degrees Celsius (68 Fahrenheit) but does not fall below 10 C. (50 F.) and is considered sub-tropical. These are distributed equally north and south of eutropical subseas. Paratropical subseas are absent of corals and well-developed carbonate beds and seagrass yet contain a mixture of Tethys Ocean lineages of the Eocene as well as Boreal and anti-Boreal (Southern Hemisphere) taxa. This marine environment supports a single species of a few mollusks found in eutropical subseas. Brittle stars, ''Turridae'', ''Cassis'', ''Euspira'', and the rock snails ''Muricidae'' thrive found in paratropical subseas, ==References== Primary source: Petuch, Edward J., Cenozoic seas: the view from eastern North America, ISBN 0-8493-1632-4, ISBN 978-0-8493-1632-6.
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