Lower Most part

Coherent formation
Pliocene (ca. 1.75 Ma or older)
Correlation: Lower part of Miyakojima Formation

Sedimentary facies: Fluvial, Lacustrine
Climate: Metasequia-abundant stage
Lithofacies: Gravels, Sands
Lithofacies (Minor): Sandy silt

Upper limit: Top of Ebs-Fkd
Upper limit: Conformity (Lower Most part)
Lower limit: Unconformity

Osaka Group
[ Upper ]
~~~~~~~~~~~~~~
Upper Most part
--------------
Upper part
--------------
Lower part
--------------
Lower Most part
~~~~~~~~~~~~~~
[ Lower ]

Second Setouchi Supergroup (Osaka pref. - Hyogo pref.)
[ Upper ]
~~~~~~~~~~~~~~
Osaka Group
~~~~~~~~~~~~~~
[ Lower ]

[ Upper ]
~~~~~~~~~~~~~~
Second Setouchi Supergroup
?--?--?--?--?-
First Setouchi Supergroup
~~~~~~~~~~~~~~
[ Lower ]

------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown

Distribution: Osaka pref.
Fossils: Metasequoia sp.
Tephra: Shimakumayama, Pumice, Shiba A, Shiba B, Misaki, Tsuchimaru, Mizuma, Habutaki, Asashiro, Manoike, Mitsumatsu

Hongo (2009) Jour. Geol. Soc. Japan, vol.115, no.2, pp.64-79 DOI
Miyachi et al. (2005) Geology of the Kyoto-Seinambu District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 90p. (in Japanese with English abstract 4p.)
Miyachi et al. (2001) Geology of the Osaka-Tohokubu District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 130p. (in Japanese with English abstract 6p.)
Huzita and Kasama (1982) Geology of the Osaka-Seihokubu District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 112p. (in Japanese with English abstract 8p.)