科研之友
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摘要
A new cancellariid species, Admete katsuhiraensis new species is described from the Paleocene Katsuhira Formation in Urahoro Town, eastern Hokkaido, Japan. This is the oldest record of cancellariid gastropods in Japan and also the oldest record of the genus Admete and the subfamily Admetinae worldwide. Although the known fossil record of the genus is very incomplete, occurrence of Paleocene Admetinae in deep sea deposits of the Katsuhira Formation in northern Japan provides an interesting insight into the timing of origin of the present day cold water molluscan fauna in the northern Hemisphere.
- 出版日期2016-9-2
