| Citation | Coppard, S.E., 2016 A new genus of mellitid sand dollar (Echinoidea: Mellitidae) from the eastern Pacific coast of the Americas. Zootaxa 4111(2):158-166. |
| Ref. | 133029 Coppard, S.E., 2016 |
| Page | 158-164 |
| Named Used as Valid | Lanthonia longifissa |
| Locality | |
| Distribution | Pacific coasts of Northern Mexico to Colombia. |