{"_buckets": {"deposit": "9c3b85be-0b06-4f1c-9c79-c5faa940926b"}, "_deposit": {"id": "11722", "owners": [], "pid": {"revision_id": 0, "type": "depid", "value": "11722"}, "status": "published"}, "_oai": {"id": "oai:nagoya.repo.nii.ac.jp:00011722"}, "item_9_alternative_title_19": {"attribute_name": "\u305d\u306e\u4ed6\u306e\u8a00\u8a9e\u306e\u30bf\u30a4\u30c8\u30eb", "attribute_value_mlt": [{"subitem_alternative_title": "^\u003c14\u003eC ages of Vertebrate Fossil Beds in Okinawa Islands, the Ryukyus(Proceedings of the 16^\u003cth\u003e Symposium on Researches Using the Tandetron AMS System at Nagoya University in 2003)"}]}, "item_9_biblio_info_6": {"attribute_name": "\u66f8\u8a8c\u60c5\u5831", "attribute_value_mlt": [{"bibliographicIssueDates": {"bibliographicIssueDate": "2004-03", "bibliographicIssueDateType": "Issued"}, "bibliographicPageEnd": "51", "bibliographicPageStart": "41", "bibliographicVolumeNumber": "15", "bibliographic_titles": [{"bibliographic_title": "\u540d\u53e4\u5c4b\u5927\u5b66\u52a0\u901f\u5668\u8cea\u91cf\u5206\u6790\u8a08\u696d\u7e3e\u5831\u544a\u66f8"}]}]}, "item_9_description_4": {"attribute_name": "\u6284\u9332", "attribute_value_mlt": [{"subitem_description": "In the Ryukyu Islands, streching from the Japanese mainland of Kyushu to Taiwan, is one of the most important paleontological field in the world as far as insular animal evolution in concerned. It offers abundant occurrence of fossil as well as a spectacular diversity of extant endemic species, whose ancestors were escaped extinction during the latest Pleistocene. In the Ryukyu Islands, fossil assemblages of terrestrial vertebrates occur at three major stratigraphic levels, ranging from the Early to Late Pleistocene. These fossil assemblages represent successful colonizations by taxa that migrated from Asian mainland during the past four land connections. The taxa including archetypal deer and terrestrial tortoise complately extinct at the end of Pleistocene after the morphotypes. Furthermore, it can be said that the other animals in this assemblages may serve as the present endemic mammals, reptiless and amphibians living in the Ryukyu Islands. To know the age of mass extinction of terrestrial vertebrates in the Ryukyu Islands, ^\u003c14\u003eC ages of land snails which collected from four vertebrate fossil beds(cave and fissure deposits) in Okinawa Island together with abundant fossil vertebrates, were measured with Tandetron Accelerator Mass Spectrometry (AMS) of Dating and Matrerial Research Center, Nagoya University. The results are as follows. ^\u003c14\u003eCages of fossil land snails from Okinawa Island indicate ages of Late Pleistocene ranging from ca. 23,000\u301c28,160 yrs. BP. These ^\u003c14\u003eC age are in accord with data presented by several previous researchers from the fissure and cave deposits of Okinawa and Miyako Islands. These data imply that the mass extinction of endemic archetypel deer and terrestrial tortoises might took placed at the third subglacial stage of the Wurm pleniglacial in the latest Pleistocene.", "subitem_description_type": "Abstract"}]}, "item_9_description_5": {"attribute_name": "\u5185\u5bb9\u8a18\u8ff0", "attribute_value_mlt": [{"subitem_description": "\u7b2c16\u56de\u540d\u53e4\u5c4b\u5927\u5b66\u30bf\u30f3\u30c7\u30c8\u30ed\u30f3\u52a0\u901f\u5668\u8cea\u91cf\u5206\u6790\u8a08\u30b7\u30f3\u30dd\u30b8\u30a6\u30e0(\u5e73\u621015\u5e74(2003\u5e74\u5ea6)\u5831\u544a Proceedings of the 16th Symposium on Researches Using the Tandetron AMS System at Nagoya University in 2003 \u65e5\u6642:\u5e73\u621016(2004)\u5e741\u670822\u65e5(\u6728)\uff6423\u65e5(\u91d1) \u4f1a\u5834:\u540d\u53e4\u5c4b\u5927\u5b66\u30b7\u30f3\u30dd\u30b8\u30aa\u30f3 Date:January 22nd and 23rd,2004 Place:Nagoya University Symposion Hall", "subitem_description_type": "Other"}]}, "item_9_identifier_registration": 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