- Oridorsalis tener (Brady, 1884) accepted as Oridorsalis umbonatus (Reuss, 1851)
- Oridorsalis tenerus (Brady, 1884) accepted as Oridorsalis tener (Brady, 1884) accepted as Oridorsalis umbonatus (Reuss, 1851)
- Oridorsalis umbonata (Reuss, 1851) accepted as Oridorsalis umbonatus (Reuss, 1851)
- Oridorsalis umbonatus (Reuss, 1851)
- Osangularia culter (Parker & Jones, 1865)
- Osangularia umbonifera (Cushman, 1933) accepted as Osangulariella umbonifera (Cushman, 1933) accepted as Nuttallides umbonifer (Cushman, 1933)
- Osangulariella bradyi (Earland, 1934)
- Osangulariella umbonifera (Cushman, 1933) accepted as Nuttallides umbonifer (Cushman, 1933)
- Osangularielloides rugosus (Phleger & Parker, 1951)