Calymene
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Calymene is a genus of trilobites in the order Phacopida, suborder Calymenina, that are found throughout North America, North Africa, and Europe in primarily Silurian outcrops. Calymene is closely rel
Calymene clavicula dorsal
Trilobite
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Trilobites are extinct marine arthropods that form the class Trilobita. One of the earliest groups of arthropods to appear in the fossil record, trilobites were among the most successful of all early
Calymene
…Calymene is a genus of trilobites in the order Phacopida, suborder Calymenina, that are found throughout North America, North Africa, and Europe in primarily Silurian outcrops. Calymene…
Redlichiida, such as this Paradoxides, may represent the ancestral trilobites.
Fossil Prochuangia from the Cambrian period of Darnjal Formation, Tabas, Iran
Meroperix, from the Silurian of Wisconsin
Walliserops trifurcatus, from Jebel Oufatene mountain near Fezzou, Morocco