scholarly journals Influence of the latest Pliocene cooling to the benthic fauna from the central part of the Japan Sea borderland: Molluscan fauna from the Zukawa Formation in Toyama Prefecture

2012 ◽  
Vol 118 (12) ◽  
pp. 810-822 ◽  
Author(s):  
Kazutaka Amano ◽  
Masui Hamuro ◽  
Toshikazu Hamuro ◽  
Tokiyuki Sato ◽  
Rio Ogihara
Keyword(s):  
Benthic Fauna ◽  
Japan Sea ◽  
The Japan Sea ◽  
Molluscan Fauna

scholarly journals Taxonomy and palaeobiogeographical significance of four new species of <i>Semicytherura</i> (Ostracoda, Crustacea) from the Early Pleistocene Omma Formation of the Japan Sea coast

2008 ◽  
Vol 27 (2) ◽  
pp. 135-146 ◽  
Author(s):  
Hirokazu Ozawa ◽  
Takahiro Kamiya
Keyword(s):  
New Species ◽  
Benthic Fauna ◽  
Japan Sea ◽  
Early Pleistocene ◽  
Late Cenozoic ◽  
Shallow Sea ◽  
Central Japan ◽  
The Japan Sea ◽  
History Of ◽  
Sea Coast

Abstract. The genus Semicytherura (Ostracoda, Crustacea) is distributed widely in shallow-sea areas of the Northern Hemisphere and occurs commonly in Pliocene and Pleistocene strata along the Japan Sea coasts. Four new species -Semicytherura robustundata sp. nov., Semicytherura subslipperi sp. nov., Semicytherura leptosubundata sp. nov. and Semicytherura tanimurai sp. nov. - are described from the Early Pleistocene Omma Formation, central Japan. These species are palaeobiogeographically significant in the history of species diversity changes in Japan Sea benthic fauna during the Late Cenozoic. The geological and geographical occurrences suggest that these four species originated within the Japan Sea from the Late Pliocene, including one species that diversified by heterochronic evolution, and were endemic to the Japan Sea. They became extinct within this sea during the Early Pleistocene.

Some Aspects of Japan Sea Trade in the Tokugawa Period

1964 ◽  
Vol 23 (3) ◽  
pp. 405-416 ◽  
Author(s):  
Robert G. Flershem
Keyword(s):  
Seventeenth Century ◽  
Japan Sea ◽  
Permanent Residence ◽  
Tokugawa Period ◽  
The Japan Sea

It is reasonable to assume that Kaga han, in view of its size, large rice and other exports, and central coastal location, provided the lion's share of ships and shipowners operating in the Japan Sea during the two centuries before Perry. Villagers were going from Noto to North Honshu and Hokkaido both for temporary occupation and for permanent residence in the mid-seventeenth century and diereafter; and some of these emigrants became useful Kaga han trade agents. Moreover, transport of rice and salt respectively to Tsuruga and Echigo from Noto villages early in the Tokugawa period can be documented. Kaga han needed an all-water route to Osaka because of the high cost of transshipping rice by land from Tsuruga to Osaka. This may have been the main reason for the development in the latter part of the seventeenth century of nishi mawari, the route for ships going from the Japan Sea through the Inland Sea.

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