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Protogrammoceras nipponicum

Protogrammoceras nipponicum Matsumoto, 1947

• Extinct species:
• Habitat: Marine

• Classification
• kingdom Animalia, phylum Mollusca, class Cephalopoda, subclass Ammonoidea, order Ammonitida, family Hildoceratidae

• Distribution
• Jurassic: Yamaguchi