Article · Wikipedia archive · Last revised Jun 8, 2026

Hexanauplia

The Hexanauplia is a clade proposed by Oakley et al. (2013) that constitutes a class of crustaceans, comprising the Copepoda and Thecostraca. A number of recent phylogenomic studies have not found support for this clade, with some supporting the alternative clade of Communostraca comprising Thecostraca and Malacostraca.

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Jun 8, 2026
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Hexanauplia
Calanoida
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Arthropoda
Clade: Pancrustacea
Superclass: Multicrustacea
Class: Hexanauplia
Oakley, T.H., J.M. Wolfe, A.R. Lindgren & A.K. Zaharoff, 2013
Subclasses

The Hexanauplia is a clade proposed by Oakley et al. (2013) that constitutes a class of crustaceans, comprising the Copepoda and Thecostraca.12 A number of recent phylogenomic studies have not found support for this clade,345 with some supporting the alternative clade of Communostraca comprising Thecostraca and Malacostraca.45

Classification

This taxon is no longer accepted according to the World Register of Marine Species (May, 2022).6 Copepoda and Thecostraca are now treated as classes in Superclass Multicrustacea, along with classes Malacostraca and Tantulocarida.7

References

References

  1. Oakley, Todd H.; Wolfe, Joanna M.; Lindgren, Annie R.; Zaharoff, Alexander K. (January 2013). "Phylotranscriptomics to Bring the Understudied into the Fold: Monophyletic Ostracoda, Fossil Placement, and Pancrustacean Phylogeny". Molecular Biology and Evolution. 30 (1): 215–233. doi:10.1093/molbev/mss216. ISSN 1537-1719. Retrieved 16 May 2022.
  2. Lozano-Fernandez, Jesus; Giacomelli, Mattia; Fleming, James F; Chen, Albert; Vinther, Jakob; Thomsen, Philip Francis; Glenner, Henrik; Palero, Ferran; Legg, David A; Iliffe, Thomas M; Pisani, Davide; Olesen, Jørgen (1 August 2019). "Pancrustacean Evolution Illuminated by Taxon-Rich Genomic-Scale Data Sets with an Expanded Remipede Sampling". Genome Biology and Evolution. 11 (8): 2055–2070. doi:10.1093/gbe/evz097. ISSN 1759-6653. PMC 6684935. Retrieved 16 May 2022.
  3. Schwentner, Martin; Combosch, David J.; Pakes Nelson, Joey; Giribet, Gonzalo (June 2017). "A Phylogenomic Solution to the Origin of Insects by Resolving Crustacean-Hexapod Relationships". Current Biology. 27 (12): 1818–1824.e5. doi:10.1016/j.cub.2017.05.040. ISSN 0960-9822. Retrieved 16 May 2022.
  4. Schwentner, M.; Richter, S.; Rogers, D. C.; Giribet, G. (2018). "Schwentner et al. 2018". Proceedings. Biological Sciences. 285 (1885). doi:10.1098/rspb.2018.1524. PMC 6125901. PMID 30135168. S2CID 52069795.
  5. Bernot, James P.; Owen, Christopher L.; Wolfe, Joanna M.; Meland, Kenneth; Olesen, Jørgen; Crandall, Keith A. (2023). "Major Revisions in Pancrustacean Phylogeny and Evidence of Sensitivity to Taxon Sampling". Molecular Biology and Evolution. 40 (8) msad175. doi:10.1093/molbev/msad175. PMC 10414812. PMID 37552897.
  6. WoRMS. "Hexanauplia". World Register of Marine Species. Retrieved 11 December 2022.
  7. WoRMS. "Multicrustacea". World Register of Marine Species. Retrieved 11 December 2022.
External links