The historic career of the Mongolian sunken warship and coeval paleoenvironment as inferred from molluscan shells co-occurred with its surrounding sediments and hull wreckage

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  • 元寇沈没船周辺から得られた貝類及び船体付着貝類から見た当時の古環境と船の来歴

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Molluscan shells associated with the Mongolian sunken warship is briefly documented. Species co-occurred in its surrounding sediments include upper sublittoral sand to sandy mud dwellers, reflecting oceanographic setting of off Takashima island. Shells encrusted to hull wreckage are of typical rocky inshore species, i. e. hull-fouling species, however, some of these seem like to have attached to the wreckage after the ship sunk. A substantial number of boring trace by shipworm was recognized in the shelled wreckage. Surface sediments would protect the sunken ship from extensive destruction by wood-boring organisms.

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