| Synonym | Author | CoL Status | Valid | Synonymy | Combination |
|---|---|---|---|---|---|
| Echinodiscus bisperforatus | Leske, 1778 | accepted name | Yes | senior synonym |
original combination |
| Echinodiscus bisperforatus truncatus | (Agassiz, 1841) | accepted name | No | senior synonym |
change in rank |
| Echinodiscus truncata | (Agassiz, 1841) | synonym | No | senior synonym |
new combination |
| Lobophora truncata | Agassiz, 1841 | synonym | No | senior synonym |
original combination |