| Synonym | Author | CoL Status | Valid | Synonymy | Combination |
|---|---|---|---|---|---|
| Thallassarctos eogroenlandicus | Knotterus-Meyer, 1908 | synonym | No | junior synonym |
original combination |
| Thallassarctos labradorensis | Knotterus-Meyer, 1908 | synonym | No | junior synonym |
original combination |
| Ursus marinus | Pallas, 1776 | synonym | No | junior synonym |
original combination |
| Ursus maritimus | Phipps, 1774 | accepted name | Yes | senior synonym |
original combination |
| Ursus maritimus marinus | Pallas, 1776 | accepted name | No | senior synonym |
original combination |
| Ursus maritimus maritimus | Phipps, 1774 | accepted name | No | senior synonym |
original combination |
| Ursus polaris | (Pallas, 1776) | synonym | No | junior synonym |
new combination |