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Data last updated
Mon 1 Dec 2025
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Bivalvia
| ... | Unionidae
| Ambleminae
| Quadrulini
| Quadrulina
| Theliderma intermedia
nominal species Quadrula biangulata Morrison, 1942
= Theliderma intermedia Taxonomic Opinions+ Theliderma intermedia (Conrad, 1836) — Lopes-Lima et al., 2019 + Quadrula intermedia (Conrad, 1836) — Williams et al., 2008 + Quadrula quadrula (Rafinesque, 1820) — Parmalee & Bogan, 1998 + Quadrula tuberosa (Lea, 1840) — R.I. Johnson, 1980
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