Flexicalymene

Flexicalymene is a genus of trilobites of the order Phacopida, suborder Calymenina. They are found abundantly in North America. 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. Species include F. meeki and F. retrorsa (Ohio, Kentucky and Indiana), F. granulosa (Ohio, Kentucky and Quebec), F. senaria (Quebec, Vermont, and New York) and F. croneisi (Ontario).

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  Flexicalymene meeki; Waynesville Formation; Upper Ordovician; Caesar Creek, Ohio.
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  Flexicalymene meeki; Waynesville Formation; Upper Ordovician; Caesar Creek, Ohio.
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  F. meeki
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  Flexicalymene species on display at State Museum of Pennsylvania. Specimen is approximately 3 cm long
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  Rolled F. ouzregui

Flexicalymene Temporal range: Middle Ordovician to Early Silurian PreꞒ Ꞓ O S D C P T J K Pg N [1]
Flexicalymene tazarensis
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	†Trilobita
Order:	†Phacopida
Suborder:	†Calymenina
Family:	†Calymenidae
Genus:	†Flexicalymene
Species
†F. croneisi †F. granulosa †F. meeki †F. ouzregui †F. retrorsa †F. senaria †F. tazarensis