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Data last updated
Thu 18 Dec 2025
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Bivalvia
| ... | Unionidae
| Ambleminae
| Quadrulini
| Quadrulina
| Quadrula primaevus
nominal species Unio primaevus White, 1877
= Quadrula primaevus Taxonomic Opinions= Orthonymus primaevus (White, 1877) — Modell, 1957 = Unio primaevus White — Henderson, 1935 = Quadrula primaevus (White) — Russell, 1934
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