Brachiopods from the Upper Permian Takakurayama Formation, Abukuma Mountains, northeast Japan - 2008
Middle Permian brachiopods from Yamasuge in the Kuzu area, Ashio Mountains, central Japan - 2010
Early Permian ammonoids from the Takakurayama area, Abukuma Mountains, northeast Japan - 2011
Permian brachiopods from Yamasuge in the Kuzu area, Ashio Mountains, central Japan, part 2 - 2012
Early Permian (Sakmarian) brachiopods from Kamiyasse, South Kitakami Belt, northeast Japan - 2014