Diacalymene

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Diacalymene
Temporal range: Late Ordovician-Silurian
~445.6–418.7  Ma
Diacalymene gabrielsi lateral.jpg
Diacalymene gabrielsi from Sommerset Island, Canada
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Animalia
Phylum: Arthropoda
Clade:† Artiopoda
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. clavicula, [2] D. diademata and D. gabrielsi. [1] It lived in the Ordovician [3] and Silurian periods. [1]

Distribution

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

Ordovician
Silurian

References

  1. 1 2 3 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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