|
Kyuma & Nishida |
1992 |
Welleritid Ammonoids from the Akiyoshi Limestone Group (Molluscan Paleontology of the Akiyoshi Limestone Group-IX).
Bulletin of the Akiyoshi-dai Museum of Natural History, 27: 1-21, 8 figs., 4 tabls., 8 pls., Shuho, Yamaguchi pref.
|
|
|
Nishida |
1971 |
Carboniferous Ammonoids from Akiyoshi.
Bulletin of the Akiyoshi-dai Science Museum, 7: 1-24, 11 figs., 1 tabl., 7 pls., Shuho, Yamaguchi pref., Japan.
|