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Hataiyoldia tokunagai

Hataiyoldia tokunagai (Yokoyama, 1925)

Synonym: Megayoldia (Hataiyoldia) tokunagai, Megayoldia tokunagai

Invalid synonym: Yoldia tokunagai, Portlandia (Acilana) tokunagai, Portlandia tokunagai, Acilana tokunagai

• Extinct species
• Habitat: Marine

• Classification
• kingdom Animalia, phylum Mollusca, class Bivalvia, order Nuculanida, family Yoldiidae, genus Megayoldia, subgenus Hataiyoldia

• Distribution
• Miocene: Hokkaido, Fukushima, Tokyo

• Subtaxa
• H. t. var. hayasakai