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Diacalymene

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Diacalymene
Temporal range: Late Ordovician-Silurian
~445.6–418.7 Ma
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: †Trilobita
Order: †Phacopida
Family: †Calymenidae
Genus: †Diacalymene
Kegel, 1927
Type species
Calymene diademata
Barrande, 1846 [1]

Diacalymene is a genus of trilobite from the order Phacopida, suborder Calymenina. It includes the species D. ouzregui, D. clavicula,[2] D. diademata and D. gabrielsi.[1] It lived in the Ordovician[3] and Silurian periods.[1]

Distribution

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Fossils of the genus have been found in:[4]

Ordovician
Silurian

References

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  1. ^ a b c Jonathan M. Adrain and Gregory D. Edgecombe (1997). "Silurian (Wenlock) calymenid trilobites from the Cape Phillips Formation, central Canadian Arctic" (PDF). Journal of Paleontology. 71 (4): 657–682. Bibcode:1997JPal...71..657A. doi:10.1017/S0022336000040130. JSTOR 1306585. S2CID 131835921.
  2. ^ Riccardo Levi-Setti (1995). Trilobites (2nd ed.). University of Chicago Press. ISBN 978-0-226-47452-6.
  3. ^ Pierre J. Lespérance (1968). "Ordovician and Silurian trilobite faunas of the White Head Formation, Percé Region, Québec". Journal of Paleontology. 42 (3): 811–826. JSTOR 1302377.
  4. ^ Diacalymene at Fossilworks.org
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