Cyclopygoidea
{{Short description|Extinct superfamily of Trilobites}}
{{Automatic taxobox
| fossil_range = {{Fossil range|Furongian|Ordovician}}
| image = Pricyclopyge.jpg
| image_caption = Pricyclopyge binodosa
| taxon = Cyclopygoidea
| authority =
}}
Cyclopygoidea is a superfamily of trilobites in the order Asaphida, containing the families Cyclopygidae, Nileidae, Symphysurinidae, and Taihungshaniidae.{{Cite web |title=PBDB Taxon |url=https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=363283&is_real_user=1 |access-date=2024-12-24 |website=paleobiodb.org}} Some subgroups such as the Cyclopygidae are thought to have lived in the water column in the deep sea, where as the unrelated telephinids such as Carolinites inhabited epipelagic depths around the same time.{{Cite journal |last1=McCormick |first1=Tim |last2=Fortey |first2=Richard A. |date=April 1998 |title=Independent testing of a paleobiological hypothesis: the optical design of two Ordovician pelagic trilobites reveals their relative paleobathymetry |url=https://www.cambridge.org/core/journals/paleobiology/article/abs/independent-testing-of-a-paleobiological-hypothesis-the-optical-design-of-two-ordovician-pelagic-trilobites-reveals-their-relative-paleobathymetry/9FB445C663A6DF413A4257E730EF1FD6 |journal=Paleobiology |language=en |volume=24 |issue=2 |pages=235–253 |doi=10.1666/0094-8373(1998)024[0235:ITOAPH]2.3.CO;2 |issn=0094-8373|url-access=subscription }} Some members of the family Nileidae were moved outside of it.{{Cite journal |last=Whittington |first=H. B. |date=2003 |title=The trilobite family Nileidae: morphology and classification |url=https://onlinelibrary.wiley.com/doi/10.1111/1475-4983.00313 |journal=Palaeontology |language=en |volume=46 |issue=4 |pages=635–646 |doi=10.1111/1475-4983.00313 |bibcode=2003Palgy..46..635W |issn=1475-4983}} The first cyclopygoids were of the family Simphysurinidae such as Symphysurina in Furongian (late Cambrian) North America.{{Cite journal |last1=Loch |first1=J. |last2=Taylor |first2=John F. |date=2012 |title=New symphysurinid trilobites from the Cambrian-Ordovician boundary interval in the western United States |journal=Memoirs of the Association of Australasian Palaeontologists|s2cid=53954813 }}
References
{{Reflist}}
Further reading
- {{Cite journal |last1=Ingham |first1=J. Keith |last2=Fortey |first2=Richard A. |date=December 2022 |title=Review of the Ordovician pelagic trilobite Ellipsotaphrus (Cyclopygoidea, Ellipsotaphridae) and its allies, with new discoveries from Girvan, Ayrshire |url=https://www.cambridge.org/core/journals/earth-and-environmental-science-transactions-of-royal-society-of-edinburgh/article/review-of-the-ordovician-pelagic-trilobite-ellipsotaphrus-cyclopygoidea-ellipsotaphridae-and-its-allies-with-new-discoveries-from-girvan-ayrshire/68E14B52917A5EE3DDB6A17FD44D273B |journal=Earth and Environmental Science Transactions of the Royal Society of Edinburgh |language=en |volume=113 |issue=4 |pages=313–336 |doi=10.1017/S1755691022000263 |issn=1755-6910|url-access=subscription }}
- {{Cite journal |last1=Park |first1=Tae-Yoon S. |last2=Kihm |first2=Ji-Hoon |last3=Woo |first3=Jusun |last4=Kim |first4=Young-Hwan G. |last5=Lee |first5=Jong-Ik |date=2016 |title=Ontogeny of the Furongian (late Cambrian) trilobite roceratopyge cf. . ata Whitehouse from northern Victoria Land, Antarctica, and the evolution of metamorphosis in trilobites |url=https://onlinelibrary.wiley.com/doi/10.1111/pala.12251 |journal=Palaeontology |language=en |volume=59 |issue=5 |pages=657–670 |doi=10.1111/pala.12251 |issn=1475-4983}}
- {{Cite journal |last=Paterson |first=John R. |date=January 2020 |title=The trouble with trilobites: classification, phylogeny and the cryptogenesis problem |url=https://www.cambridge.org/core/journals/geological-magazine/article/abs/trouble-with-trilobites-classification-phylogeny-and-the-cryptogenesis-problem/6D043CDA69A627B34BBD2CACC6F1E646 |journal=Geological Magazine |language=en |volume=157 |issue=1 |pages=35–46 |doi=10.1017/S0016756819000426 |issn=0016-7568|url-access=subscription }}
- {{Cite journal |last1=Laibl |first1=Lukáš |last2=Servais |first2=Thomas |last3=Mottequin |first3=Bernard |date=2023-12-01 |title=Tremadocian (Ordovician) trilobites from the Brabant Massif (Belgium): Palaeogeographical and palaeoecological implications |url=https://linkinghub.elsevier.com/retrieve/pii/S0016699523000682 |journal=Geobios |series=Ordovician of the World — Proceedings of the UNESCO/IGCP Project 653 absolutely final & Project 735 opening online meeting (13th-16th, September 2021) |volume=81 |pages=7–16 |doi=10.1016/j.geobios.2023.04.003 |issn=0016-6995|url-access=subscription }}
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Category:Trilobite superfamilies
Category:Furongian first appearances
Category:Ordovician trilobites
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