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Tashiro facies
- Type locality: Shimotashiro - Sunagomata, Higashidori city, Shimokita county, Aomori prefecture
- Coherent formation
- middle Miocene - Pliocene
- Sedimentary facies: Shallow marine, Brackish
- Lithofacies: Interbedded sandstone and mudstone
------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown
- Distribution: Shimotashiro - Sunagomata, Higashidori city, Shimokita county, Aomori pref.
- Fossils (Bivalves): Chlamys sp.
- Fossils (Plants): Acer cfr. diabolicum, Betula sp., Castanea cfr. crenata, Juglans sp., Metasequoia japonica
- Imai (1961) Chikagawa, Explanatory Text of the Geological Map of Japan, Scale 1:50,000, Geological Survey of Japan, 45p. (in Japanese with English abstract 4p.)