Biwaella
ビワエラ
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Biwaella Morikawa and Isomi, 1960（シュベルテラ科）．山口県秋吉台帰り水，秋吉石灰岩：前期ペルム紀Yakhtashian (Artinskian)．
>>> 上野　勝美
Preface
Authers
Index
References
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