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Wasabu Alternation Member Kawai and Nozawa, 1958
Invalid synonym: Wasabu Alternation of Sandstone and Mudstone, Yoko-dake Alternation of Shale and Sandstone,
- Type locality: Wasabu, Kamioka town, Hida city, Gifu prefecture
- Coherent formation
- Early Cretaceous (125, 116, 113 Ma, FT)
- Sedimentary facies: Terrestrial
- Sedimentary facies: Meandering river
- Sedimentary facies: Channel, Point bar, Flood plain
- Lithofacies: Interbedded sandstone and mudstone
- Lithofacies (Minor): Conglomearte, Tuff
------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown
- Distribution: Wasabu, Kamioka town, Hida city, Gifu pref.; Yakushizawa creek - Tateishikigan - Mount Mayama - Mount Taroyama, Toyama city, Toyama pref.
- Fossils: Dinosaur (Footprints), Turtles, Bivalves (Nakamuranaia sp., Pseudohyria sp.), Trace fossils
- Fossils (Tetori-type flora): Adiantites sewardi, Cladophlebis sp., Coniopteris cf. hymenophylloides, Equisetites sp., Ginkgoidium cf. nathorsti, Ginkgoites digitata, Onychiopsis elongata, Podozamites distans, Podozamites cf. griesbachi, Podozamites lanceolatus, Xenoxylon latiporosum (Tree trunks)
- Matsukawa et al. (2014) Jour. Geol. Soc. Japan, vol.120, no.5, pp.147-164 DOI
- Hirasawa et al. (2010) Jour. Geol. Soc. Japan, vol.116, Supplement, pp.103-121 DOI
- Harayama et al. (1991) Geology of the Yarigatake District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 190p. (in Japanese with English abstract 8p.)
- Kawai and Nozawa (1958) Higashimozumi, Explanatory Text of the Geological Map of Japan, Scale 1:50,000, Geological Survey of Japan, 76p. (in Japanese with English abstract 10p.)