Early Miocene freshwater diatom flora from the Yamato Rise, the Sea of Japan. Issue 3 (3rd July 2017)

• Record Type: Journal Article
• Authors: Tsoy, Ira
• Is Part Of: Diatom research. Volume 32:Issue 3(2017)
• Page Start: 277
• Page End: 293
• Publication Date: 2017-07-03
• Subjects: freshwater diatoms -- Early Miocene -- Yamato Rise -- Aulacoseira -- Tetracyclus; Diatoms -- Periodicals; Diatoms -- Research -- Periodicals; Diatoms; Diatoms -- Research; Periodicals; 579.85
• DOI: 10.1080/0269249X.2017.1367726
• Languages: English
• ISSNs: 0269-249X

Abstract

Abstract : Fossil freshwater diatoms from tuffaceous–terrigenous deposits of the Yamato Rise, the Sea of Japan are described. The diatom flora includes 133 species and intraspecific taxa belonging to 44 genera. Species of Aulacoseira (19 taxa) and Tetracyclus (17 taxa) are highly diversified, and species of Aulacoseira and Actinocyclus occur very abundantly. Aulacoseira is mainly represented by extinct taxa, including those with elliptic valves that are characteristic of the Early Miocene (23–16 Ma). Such findings of numerous fossil freshwater diatoms in the Yamato Rise deposits strongly suggest that, during the Early Miocene, the Yamato Rise contained a lake basin within a terrestrial environment. Fifty-seven diatom taxa are illustrated.