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Mid-5. Well-preserved fossil plants from the Middle Pleistocene lacustrine beds in Shiobara, Tochigi

26 August

Organizer: Kazuhiko Uemura (National Museum of Nature and Science),

Co-organizer: Takumi Tsujino (Geological Survey of Japan, AIST)

Itinerary: Meet at 8:00 am at JR Tokyo Station - visit Shiobara -return to Tokyo at 18:00 pm


Fossil plants from the Middle Pleistocene lacustrine beds (Shiobara Group) have been reported by many authors since Swedish paleobotanist A. G. Nathorst recorded 15 species of plants in 1888. The flora from these lacustrine beds is composed mainly of diverse broad-leaved deciduous plants, among which two beech species are dominant, Fagus crenata and F. japonica. We will visit the privately owned quarry of Konoha Fossil Museum. In addition to plant remains, the quarry yields diverse animal remains, such as insects, arachnids, fishes and others, and is well known as a fossil Lagerstätte. We will also visit the town of Shiobara hot spring, including a traditional garden of a Japanese temple. 

Expense: 18,000 JPY, Expence: 18,000 JPY, including lunch, fees of Konoha Fossil Museum, and bullet train fee between Tokyo and Nasu Shiobara

Maximum participants: 20

Additional information: Shiobara is located 150 km north of Tokyo. We will go there by Shinkansen (bullet train) and by bus.

A fossil leaf of Acer japonica from Shiobara (Kazuhiko Uemura)

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