
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 bei...
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http://en.wikipedia.org/wiki/Flexicalymene

(from the article `Calymene`) ...years ago). Well known in the fossil record, Calymene remains have been found in which impressions or actual remains of appendages are preserved. ...
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http://www.britannica.com/eb/a-z/f/36
No exact match found.