2 0 0 0 OA 富山県黒部峡谷の鐘釣地域のサル穴(鍾乳洞)
- 著者
- 柏木 健司 瀬之口 祥孝 阿部 勇治 吉田 勝次
- 出版者
- 一般社団法人 日本地質学会
- 雑誌
- 地質学雑誌 (ISSN:00167630)
- 巻号頁・発行日
- vol.118, no.8, pp.521-526, 2012-08-15 (Released:2012-12-19)
- 参考文献数
- 10
- 被引用文献数
- 1
This paper describes Saru-ana Cave, located along Kurobe Gorge in the Kanetsuri area, eastern Toyama Prefecture, central Japan. Saru-ana Cave (total passage length, ca. 120 m; relative height, ca. 40 m) opens onto a steeply inclined cliff face, 75 m above the bed of the Kurobe River. The cave consists of horizontal to inclined rooms and vertical shafts. Speleothems in the cave, although not abundant, include cave corals, flowstones, soda straws, stalactites, and a stalagmite. Fossil specimens of six Japanese Macaque individuals (Macaca fuscata) were collected from the cave for paleontological investigation.
1 0 0 0 OA 冠状縫合を使った鮮新統-更新統産の三尖の角を持つシカ類の分類について
- 著者
- 薄井 重雄 高橋 啓一 阿部 勇治 松本 みどり
- 出版者
- 日本古生物学会
- 雑誌
- 化石 (ISSN:00229202)
- 巻号頁・発行日
- vol.95, pp.7-17, 2014-03-31 (Released:2017-10-03)
The coronal sutures of nine specimens representing eight species of Japanese three pointed deer from the Pliocene-Pleistocene were investigated. Patterns of the coronal sutures are clearly observed in six specimens representing five species: Cervus praenipponicus from Kawasaki and Ichihara, C. akiyoshiensis from Mine, C. kazusensis from Otsu, C. shimabarensis from Minamishimabara and an unidentified specimen from Taga. It is advantageous to paleontology that the coronal sutural patterns are observable even in fragmentary fossil specimens. Combined with morphology of antlers, it is useful for classification of three pointed deers. The sutures of C. praenipponicus, C. kazusensis and C. shimabarensis are "W"- shape or open pentagonal shape expanding to the rostrad. In contrast, the suture of the Taga specimen exhibits a "V" -shape curve. Therefore, at least two groups are discriminated in Pliocene-Pleistocene three pointed deer species inhabited Japanese Islands. The "W" -shape suture is well observed in the extant Cervinae C. unicolor, C. nippon and C. elaphus, while the "V" -shaped type is seen in C. timorensis, C. eldi, Axis porcinus, Dama dama and Elaphurus davidianus. The Japanese three pointed deer species having the "W" -shaped sutures are closely related to C. unicolor. On the other hand, the Taga specimen having a "V" -shaped suture is supported the relation to C. timorensis or A. porcinus. It conflicts with the general arguments on Cervinae that A. porcinus is not closely related to C. unicolor or C. timorensis. The Taga specimen needs further reaserch utilizing other skeletons from the same locality to determine its taxonomic position.