Calymene

Calymene (meaning beautiful crescent as a reference to the glabella) is a genus of trilobites in the order Phacopida that were found throughout North America, North Africa, and Europe in primarily Silurian outcrops. Calymene are easily confused with Gravicalymene and Flexicalymene, also part of the Calymenidae family. This trilobite grew to a length of 2.5 inches (64 mm) and fed on small edible particles in the water.

Known species and locations

• †Calymene breviceps, Indiana and Illinois
• †Calymene blumenbachi, Dudley, England
• †Calymene brevucapitata, N. and S. Wales
• †Calymene cambrensis, Wales
• †Calymene celebra, Illinois, Indiana, and Wisconsin.^{[1] [2]}
• †Calymene clavicula, Oklahoma
• †Calymene daviesii, Radnorshire, Wales
• †Calymene duplicata, Wales and Ireland
• †Calymene hopkinsoni, Wales
• †Calymene niagarensis, New York
• †Calymene parvifrons, Wales
• †Calymene senaria, N. Wales and Ireland
• †Calymene tristani, Cornwall, England
• †Calymene tuberculata, Gotland, Sweden
• †Calymene vogdesi, Ohio
• †Calymene sp. in the Silurian–Ordovician of Morocco

References

• The Paleontology Database
• Henry Woodward (1877). A Catalogue of British Fossil Crustacea, with their Synonyms and the Range in Time of Each Genus and Order. Taylor and Francis. pp. 28–29. http://books.google.com/books?id=1UcbAAAAYAAJ&printsec=frontcover#v=onepage&q&f=false. 

External links

Media related to [//commons.wikimedia.org/wiki/Category:Calymene Calymene] at Wikimedia Commons