Eupachydiscus / Mollusca, Cephalopoda, Ammonoidea

Eupachydiscus / Mollusca, Cephalopoda, Ammonoidea

Geological Survey of Japan, AIST

Geoscientific Database of Fossil, Rocks and Minerals

Eupachydiscus / Mollusca, Cephalopoda, Ammonoidea

Geological Survey of Japan, AIST

Geoscientific Database of Fossil, Rocks and Minerals

Eupachydiscus / Mollusca, Cephalopoda, Ammonoidea

Geological Survey of Japan, AIST

Geoscientific Database of Fossil, Rocks and Minerals

Ammonoidea / Mollusca, Cephalopoda, Ammonoidea

Geological Survey of Japan, AIST

Geoscientific Database of Fossil, Rocks and Minerals

Ammonoidea / Mollusca, Cephalopoda, Ammonoidea

Geological Survey of Japan, AIST

Geoscientific Database of Fossil, Rocks and Minerals

Ammonoidea / Mollusca, Cephalopoda, Ammonoidea

Geological Survey of Japan, AIST

Geoscientific Database of Fossil, Rocks and Minerals

Ammonoidea / Mollusca, Cephalopoda, Ammonoidea

Geological Survey of Japan, AIST

Geoscientific Database of Fossil, Rocks and Minerals

Polyptychoceras / Mollusca, Cephalopoda, Ammonoidea

Geological Survey of Japan, AIST

Geoscientific Database of Fossil, Rocks and Minerals

Sciponoceras / Mollusca, Cephalopoda, Ammonoidea

Geological Survey of Japan, AIST

Geoscientific Database of Fossil, Rocks and Minerals

Gaudryceras / Mollusca, Cephalopoda, Ammonoidea

Geological Survey of Japan, AIST

Geoscientific Database of Fossil, Rocks and Minerals

Pachydesmoceras / Mollusca, Cephalopoda, Ammonoidea

Geological Survey of Japan, AIST

Geoscientific Database of Fossil, Rocks and Minerals

Anapachydiscus / Mollusca, Cephalopoda, Ammonoidea

Geological Survey of Japan, AIST

Geoscientific Database of Fossil, Rocks and Minerals

Neophylloceras / Mollusca, Cephalopoda, Ammonoidea

Geological Survey of Japan, AIST

Geoscientific Database of Fossil, Rocks and Minerals

Mortoniceras / Mollusca, Cephalopoda, Ammonoidea

Geological Survey of Japan, AIST

Geoscientific Database of Fossil, Rocks and Minerals

Hollandites / Mollusca, Cephalopoda, Ammonoidea

Geological Survey of Japan, AIST

Geoscientific Database of Fossil, Rocks and Minerals

Metaplacenticeras / Mollusca, Cephalopoda, Ammonoidea

Geological Survey of Japan, AIST

Geoscientific Database of Fossil, Rocks and Minerals

Gaudryceras / Mollusca, Cephalopoda, Ammonoidea

Geological Survey of Japan, AIST

Geoscientific Database of Fossil, Rocks and Minerals

Canadoceras / Mollusca, Cephalopoda, Ammonoidea

Geological Survey of Japan, AIST

Geoscientific Database of Fossil, Rocks and Minerals

Harpoceras / Mollusca, Cephalopoda, Ammonoidea

Geological Survey of Japan, AIST

Geoscientific Database of Fossil, Rocks and Minerals

Hildoceras / Mollusca, Cephalopoda, Ammonoidea

Geological Survey of Japan, AIST

Geoscientific Database of Fossil, Rocks and Minerals

Eubostrychoceras / Mollusca, Cephalopoda, Ammonoidea

Geological Survey of Japan, AIST

Geoscientific Database of Fossil, Rocks and Minerals

Canadoceras / Mollusca, Cephalopoda, Ammonoidea

Geological Survey of Japan, AIST

Geoscientific Database of Fossil, Rocks and Minerals

Ceratites / Mollusca, Cephalopoda, Ammonoidea

Geological Survey of Japan, AIST

Geoscientific Database of Fossil, Rocks and Minerals

Pseudoparalegoceras / Mollusca, Cephalopoda, Ammonoidea

Geological Survey of Japan, AIST

Geoscientific Database of Fossil, Rocks and Minerals

Eupachydiscus / Mollusca, Cephalopoda, Ammonoidea

Geological Survey of Japan, AIST

Geoscientific Database of Fossil, Rocks and Minerals

Canadoceras / Mollusca, Cephalopoda, Ammonoidea

Geological Survey of Japan, AIST

Geoscientific Database of Fossil, Rocks and Minerals

Mesopuzosia / Mollusca, Cephalopoda, Ammonoidea

Geological Survey of Japan, AIST

Geoscientific Database of Fossil, Rocks and Minerals

Anapachydiscus / Mollusca, Cephalopoda , Ammonoidea

Geological Survey of Japan, AIST

Geoscientific Database of Fossil, Rocks and Minerals

Pachydesmoceras / Mollusca, Cephalopoda, Ammonoidea

Geological Survey of Japan, AIST

Geoscientific Database of Fossil, Rocks and Minerals

Canadoceras / Mollusca, Cephalopoda, Ammonoidea

Geological Survey of Japan, AIST

Geoscientific Database of Fossil, Rocks and Minerals

Yeharaites / Mollusca, Cephalopoda, Ammonoidea

Geological Survey of Japan, AIST

Geoscientific Database of Fossil, Rocks and Minerals

Menuites / Mollusca, Cephalopoda, Ammonoidea

Geological Survey of Japan, AIST

Geoscientific Database of Fossil, Rocks and Minerals

Anapachydiscus / Mollusaca, Cephalopoda, Ammonoidea

Geological Survey of Japan, AIST

Geoscientific Database of Fossil, Rocks and Minerals

Eupachydiscus / Mollusca, Cephalopoda, Ammonoidea

Geological Survey of Japan, AIST

Geoscientific Database of Fossil, Rocks and Minerals

Helicoprion / Chordata, Chondrichethyes

Geological Survey of Japan, AIST

Geoscientific Database of Fossil, Rocks and Minerals

Neopuzosia / Mollusca, Cephalopoda, Ammonoidea

Geological Survey of Japan, AIST

Geoscientific Database of Fossil, Rocks and Minerals

Jimboiceras / Mollusca, Cephalopoda, Ammonoidea

Geological Survey of Japan, AIST

Geoscientific Database of Fossil, Rocks and Minerals

Eupachydiscus / Mollusca, Cephalopoda, Ammonoidea

Geological Survey of Japan, AIST

Geoscientific Database of Fossil, Rocks and Minerals

Anagaudryceras / Mollusca, Cephalopoda, Ammonoidea

Geological Survey of Japan, AIST

Geoscientific Database of Fossil, Rocks and Minerals

Yakushiceras / Mollusca, Cephalopoda

Geological Survey of Japan, AIST

Geoscientific Database of Fossil, Rocks and Minerals

Ammonoidea / Mollusca, Cephalopoda, Ammonoidea

Geological Survey of Japan, AIST

Geoscientific Database of Fossil, Rocks and Minerals

Mortoniceras / Mollusca, Cephalopoda, Ammonoidea

Geological Survey of Japan, AIST

Geoscientific Database of Fossil, Rocks and Minerals

Pachydesmoceras / Mollusca, Cephalopoda, Ammonoidea

Geological Survey of Japan, AIST

Geoscientific Database of Fossil, Rocks and Minerals

Anagaudryceras / Mollusca, Cephalopoda, Ammonoidea

Geological Survey of Japan, AIST

Geoscientific Database of Fossil, Rocks and Minerals

Calycoceras / Mollusca, Cephalopoda, Ammonoidea

Geological Survey of Japan, AIST

Geoscientific Database of Fossil, Rocks and Minerals

Mesopuzosia / Mollusca, Cephalopoda, Ammonoidea

Geological Survey of Japan, AIST

Geoscientific Database of Fossil, Rocks and Minerals

Acompsoceras / Mollusca, Cephalopoda, Ammonoidea

Geological Survey of Japan, AIST

Geoscientific Database of Fossil, Rocks and Minerals

Gaudryceras / Mollusca, Cephalopoda, Ammonoidea

Geological Survey of Japan, AIST

Geoscientific Database of Fossil, Rocks and Minerals