| Order | Araneae Clerck, 1757 |
| Family | Mysmenidae Petrunkevitch, 1928 |
| Genus | Mysmena Simon, 1894 |
| Species | Mysmena fossilis Petrunkevitch, 1971 |
| Locality | Chiapas, Simojovel |
| Referred Material | Holotype 13535 |
| Life state | Female |
| Repository | UCMP |
| Source (Pags) | Petrunkevitch 1971: 20-22 |