Caution: This not an official Baltimore classification, because it describes mostly viroids that are not viruses (they don't encode for any protein).
Family/genus | Type | Min length | Max length |
Deltavirus | Circular | 1,614 b | 1,697 b |
Avsunviroidae | Circular | 240 b | 340 b |
Pospiviroidae | Circular | 240 b | 400 b |