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| Cyclopygoidea Temporal range: Furongian–Ordovician PreꞒ Ꞓ O S D C P T J K Pg N | |
|---|---|
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | †Trilobita |
| Order: | †Asaphida |
| Superfamily: | †Cyclopygoidea |
Cyclopygoidea is a superfamily of trilobites in the order Asaphida, containing the families Cyclopygidae, Nileidae, Symphysurinidae, and Taihungshaniidae. Some subgroups such as the Cyclopygidae are thought to have lived in the water column in the deep sea, where as telephinids such as Carolinites inhabited epipelagic depths. Some members of the family Nileidae were moved outside of it. The first cyclopygoids were of the family Simphysurinidae such as Symphysurina in Furongian (late Cambrian) North America.
References
- "PBDB Taxon". paleobiodb.org. Retrieved 2024-12-24.
- McCormick, Tim; Fortey, Richard A. (April 1998). "Independent testing of a paleobiological hypothesis: the optical design of two Ordovician pelagic trilobites reveals their relative paleobathymetry". Paleobiology. 24 (2): 235–253. doi:10.1666/0094-8373(1998)024[0235:ITOAPH]2.3.CO;2. ISSN 0094-8373.
- Whittington, H. B. (2003). "The trilobite family Nileidae: morphology and classification". Palaeontology. 46 (4): 635–646. Bibcode:2003Palgy..46..635W. doi:10.1111/1475-4983.00313. ISSN 1475-4983.
- Loch, J.; Taylor, John F. (2012). "New symphysurinid trilobites from the Cambrian-Ordovician boundary interval in the western United States". Memoirs of the Association of Australasian Palaeontologists.
Further reading
- Ingham, J. Keith; Fortey, Richard A. (December 2022). "Review of the Ordovician pelagic trilobite Ellipsotaphrus (Cyclopygoidea, Ellipsotaphridae) and its allies, with new discoveries from Girvan, Ayrshire". Earth and Environmental Science Transactions of The Royal Society of Edinburgh. 113 (4): 313–336. doi:10.1017/S1755691022000263. ISSN 1755-6910.
- Park, Tae-Yoon S.; Kihm, Ji-Hoon; Woo, Jusun; Kim, Young-Hwan G.; Lee, Jong-Ik (2016). "Ontogeny of the Furongian (late Cambrian) trilobite roceratopyge cf. . ata Whitehouse from northern Victoria Land, Antarctica, and the evolution of metamorphosis in trilobites". Palaeontology. 59 (5): 657–670. doi:10.1111/pala.12251. ISSN 1475-4983.
- Paterson, John R. (January 2020). "The trouble with trilobites: classification, phylogeny and the cryptogenesis problem". Geological Magazine. 157 (1): 35–46. doi:10.1017/S0016756819000426. ISSN 0016-7568.
- Laibl, Lukáš; Servais, Thomas; Mottequin, Bernard (2023-12-01). "Tremadocian (Ordovician) trilobites from the Brabant Massif (Belgium): Palaeogeographical and palaeoecological implications". Geobios. Ordovician of the World — Proceedings of the UNESCO/IGCP Project 653 absolutely final & Project 735 opening online meeting (13th-16th, September 2021). 81: 7–16. doi:10.1016/j.geobios.2023.04.003. ISSN 0016-6995.
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