Cyphaspis

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Cyphaspis
Cyphaspis NMNH.jpg
Cyphaspis sp. from Morocco
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Animalia
Phylum: Arthropoda
Clade:† Artiopoda
Class:† Trilobita
Order:† Proetida
Family:† Aulacopleuridae
Genus:† Cyphaspis
Burmeister 1843
Type species
Phacops ceratophthalma
Goldfuss 1843
Species

See text

Cyphaspis is a genus of small, proetid trilobite that lived from the Late Ordovician to the Late Devonian. Fossils have been found in marine strata in what is now Europe, Africa and North America. Various species had a compact body, and a large, bulbous glabellum. Many species had long spines arranged similarly to closely related genera, such as Otarian , Otarionella , Chamaeleoaspis , and Namuropyge .

Contents

Species

The following species in the genus Cyphaspis have been described:

Distribution

Fossils of Cyphaspis have been found in: [3]

Devonian

Colombia (Floresta Formation, Altiplano Cundiboyacense), the Czech Republic, Morocco, United States (Alaska, Iowa, Oklahoma), and Uzbekistan

Silurian

Canada (Northwest Territories, Nunavut, Ontario), the United Kingdom, and the United States (Indiana, New York, Tennessee)

Ordovician

Sweden, and the United States (Illinois, Kentucky, Missouri)

References

  1. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Allart P. van Viersen; Dieter Holland (2016). "Morphological trends and new species of Cyphaspis (Trilobita, Otarioninae) in the Devonian of Morocco, Turkey, Germany and Belgium". Geologica Belgica. 19 (3–4): 251–271. doi: 10.20341/gb.2016.008 .
  2. 1 2 3 4 Adrain, Jonathan M.; Chatterton, Brian D.E. (1996). "The Otarionine Trilobite Cyphaspis, with New Species from the Silurian of Northwestern Canada" . Journal of Paleontology. 70 (1): 100–110. Bibcode:1996JPal...70..100A. doi:10.1017/S0022336000023131. JSTOR   1306372. S2CID   102338819 . Retrieved 19 April 2021.
  3. 1 2 Cyphaspis at Fossilworks.org
  4. 1 2 Allart P. van Viersen; Peter Taghon; Benedikt Magrean (2019). "Early Middle Devonian trilobites and events in the Nismes – Vireux-Molhain area, southern border of the Dinant Synclinorium (Belgium, northern France)". Geologica Belgica. 22 (1–2): 7–33. doi: 10.20341/gb.2019.001 .
  5. ↑ Allart P. van Viersen; Willy Vanherle (2018). "The rise and fall of Late Devonian (Frasnian) trilobites from Belgium: taxonomy, biostratigraphy and events". Geologica Belgica. 21 (1–2): 73–94. doi: 10.20341/gb.2018.005 .

Further reading

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