Article · Wikipedia archive · Last revised Jun 20, 2026

Paracercomonadidae

The paracercomonads are a group of cercozoan protists. Taxonomically, they comprise the family Paracercomonadidae, order Paracercomonadida and subclass Paracercomonada. Due to their morphological similarities to the cercomonads, members of this family were grouped with Cercomonas and similar taxa from the beginning. However, their similarities are due to convergent evolution.

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Jun 20, 2026
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Paracercomonadidae
Scientific classification Edit this classification
Domain: Eukaryota
Clade: Sar
Clade: Rhizaria
Phylum: Cercozoa
Class: Sarcomonadea
Subclass: Paracercomonada
Cavalier-Smith, 20181
Order: Paracercomonadida
Cavalier-Smith, 2018
Family: Paracercomonadidae
Cavalier-Smith, 2012
Genera
  • Paracercomonas
  • Nucleocercomonas
  • Metabolomonas
  • Brevimastigomonas
  • Phytocercomonas

The paracercomonads are a group of cercozoan protists.2 Taxonomically, they comprise the family Paracercomonadidae, order Paracercomonadida and subclass Paracercomonada. Due to their morphological similarities to the cercomonads, members of this family were grouped with Cercomonas and similar taxa from the beginning. However, their similarities are due to convergent evolution.1

Classification

There are currently 5 genera of paracercomonads:1

  • Brevimastigomonas Arndt, Nitsche, Brabender, Domonell & Kiss, 20123
  • Metabolomonas Arndt, Nitsche, Brabender, Domonell & Kiss, 20123
  • Nucleocercomonas Arndt, Nitsche, Brabender, Domonell & Kiss, 20123
  • Paracercomonas Cavalier-Smith & Bass, 20064
  • Phytocercomonas Braithwaite, 20135
References

References

  1. Cavalier-Smith, Thomas; Chao, Ema E.; Lewis, Rhodri (April 2018). "Multigene phylogeny and cell evolution of chromist infrakingdom Rhizaria: contrasting cell organisation of sister phyla Cercozoa and Retaria". Protoplasma. 255 (5): 1517–1574. doi:10.1007/s00709-018-1241-1. PMC 6133090. PMID 29666938.
  2. Cavalier-Smith T, Karpov SA (2012). "Paracercomonas Kinetid Ultrastructure, Origins of the Body Plan of Cercomonadida, and Cytoskeleton Evolution in Cercozoa". Protist. 163 (1): 47–75. doi:10.1016/j.protis.2011.06.004. ISSN 1434-4610. PMID 21839678.
  3. Brabender M, Kiss AK, Domonell A, Nitsche F, Arndt H (2012). "Phylogenetic and Morphological Diversity of Novel Soil Cercomonad Species with a Description of Two New Genera (Nucleocercomonas and Metabolomonas)". Protist. 163 (4): 495–528. doi:10.1016/j.protis.2012.02.002. ISSN 1434-4610. PMID 22541864.
  4. Karpov SA, Bass D, Mylnikov AP, Cavalier-Smith T (2006). "Molecular Phylogeny of Cercomonadidae and Kinetid Patterns of Cercomonas and Eocercomonas gen. nov. (Cercomonadida, Cercozoa)". Protist. 157 (2): 125–158. doi:10.1016/j.protis.2006.01.001. ISSN 1434-4610. PMID 16647880.
  5. Braithwaite KS (2013), "Innovative approaches to identifying the cause of chlorotic streak and new management strategies: final report 2013/357", Sugar Research Australia