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| Cyclopygoidea Temporal range: Furongian–Ordovician PreꞒ Ꞓ O S D C P T J K Pg N | |
|---|---|
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Trilobita |
| Subclass: | Librostoma |
| Order: | Asaphida |
| Superfamily: | Cyclopygoidea |
Cyclopygidae 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 by Whittington (2003).
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.