| Flexicalymene Temporal range:
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| Flexicalymene caractaci (Salter, 1865) from the Caradoc Series of Shropshire, England. | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | †Trilobita |
| Order: | †Phacopida |
| Family: | †Calymenidae |
| Genus: | †Flexicalymene Shirly, 1936 |
| Species | |
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See text | |
Flexicalymene Shirley, 1936.[1] is a genus of trilobites belonging to the order Phacopida, suborder Calymenina and Family Calymenidae. Flexicalymene specimens can be mistaken for Calymene, Gravicalymene, Diacalymene and a few other Calymenina genera. They are used as an index fossil in the Ordovician. Ohio and North America are particularly known for being rich with Flexicalymene fossils.
- ^ SHIRLEY, J. 1936. Some British trilobites of the family Calymenidae. Quarterly Journal of the Geological Society of London 92, 384 - 421.