Cyphaspis
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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.
Species
The following species in the genus Cyphaspis have been described:
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- C. anticostiensis
- C. bellula
- C. bluhmi Van Viersen & Holland, 2016[1]
- C. boninoi Van Viersen & Holland, 2016[1]
- C. bowingensis
- C. buchbergeri Adrain & Chatterton, 1996[2]
- C. burmeisteri
- C. ceratophthalma Goldfuss, 1843 (type)
- C. ceratophthalmoides
- C. clintoni
- C. coelebs
- C. convexa
- C. craspedota
- C. dereimsi
- C. diadema
- C. eximia Van Viersen & Holland, 2016[1]
- C. foumzguidensis Van Viersen & Holland, 2016[1]
- C. gaultieri
- C. globosus[3]
- C. heisingi Van Viersen & Holland, 2016[1]
- C. hoepfneri
- C. hudsonica
- C. hybrida
- C. hydrocephala
- C. ihmadii Van Viersen & Holland, 2016[1]
- C. insolata Van Viersen, Taghon & Magrean, 2019[4]
- C. iuxta Van Viersen, Taghon & Magrean, 2019[4]
- C. juergenhollandi Van Viersen & Holland, 2016[1]
- C. khraidensis Van Viersen & Holland, 2016[1]
- C. kippingi Van Viersen & Holland, 2016[1]
- C. koimeterionensis Van Viersen & Vanherle, 2018[5]
- C. kweberi Van Viersen & Holland, 2016[1]
- C. lerougei Van Viersen & Holland, 2016[1]
- C. lowei Adrain & Chatterton, 1996[2]
- C. mactavishi Adrain & Chatterton, 1996[2]
- C. maharchensis Van Viersen & Holland, 2016[1]
- C. matulina
- C. megalops
- C. minuscula
- C. munii Adrain & Chatterton, 1996[2]
- C. partim
- C. parvula
- C. planifrons
- C. punctillosa
- C. raripustulosus
- C. sibirica Schmidt, 1886
- C. smeenki Van Viersen & Holland, 2016[1]
- C. spinulocervix
- C. spryi
- C. stephanophora
- C. stigmatopthalmus
- C. tadachachtensis Van Viersen & Holland, 2016[1]
- C. trentonensis
- C. trigoda
- C. walteri
- C. yassensis
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
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- ^ a b c d e f g h i j k l m n Page Module:Citation/CS1/styles.css has no content.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.
- ^ a b c d Page Module:Citation/CS1/styles.css has no content.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.
- ^ a b Cyphaspis at Fossilworks.org
- ^ a b Page Module:Citation/CS1/styles.css has no content.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.
- ^ Page Module:Citation/CS1/styles.css has no content.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
- Richard Fortey, Trilobite: Eyewitness to Evolution
External links
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