Bulletin of the Mizunami Fossil Museum Vol. 51, No. 1
Boreal species of Macoma (Bivalvia: Tellinidae) from the Middle to Upper Pleistocene deposits in the southwestern part of the Japan Sea
- BMFM51-003Amanoetal（PDF 12.69MB）
- BMFM51-003Amanoetal_s（PDF 1.27MB）
Amano et al. (2024) print-version
Amano et al. (2024) small-version
Published: 2024/5/17 Page: 15–37
From the Middle to Upper Pleistocene deposits on the seabed at upper bathyal depth in the southwestern part of Japan Sea, five species of Macoma (Macoma) were recovered with some cold-water species; Macoma (Macoma) lipara Dall, 1916a, M. (M.) scarlatoi Kafanov and Lutaenko, 1997, M. (M.) golikovi Scarlato and Kafanov, 1988, M. (M.) lama meridionalis Scarlato, 1981 and M. (M.) moesta (Deshayes, 1855). All species are living in Primorye, Hokkaido and northwards. It has been elucidated that one of the characteristic species of the Omma-Manganji fauna, M. praetexta oinomikadoi Otuka, 1939 is a junior synonym of M. (M.) lipara Dall, 1919 living in Primorye via Bering Sea to California. This Macoma-dominated assemblage was deposited in the glacial stage, MIS 6 (~185–135 ka) and similar to that of the Lower Pleistocene Hamada Formation in Aomori Prefecture.