Chrompodellid

Chrompodellids
Typical life cycle stages of Vitrella brassicaformis, a chromerid (vc: vegetative cell, zs: zoosporangium, as: autosporangium)
Scientific classification
Domain: Eukaryota
Clade: Diaphoretickes
Clade: SAR
Clade: Alveolata
Phylum: Myzozoa
Class: Chromeridophyceae
Molinari & Guiry 2023
Subclass: Chromeridophycidae
Mylnikov et al. 2000
Order: Colpodellales
Cavalier-Smith 1993 emend. Adl et al. 2005, 2019
Type genus
Colpodella
Cienkowsky 1865
Families
Synonyms
  • Apicomonadea Cavalier-Smith 1993 emend. 2017
  • Chromerida Moore et al. 2008
  • Chromeridophyta Guiry 2024

Chrompodellids are a clade of single-celled protists belonging to the Alveolata supergroup. It comprises two different polyphyletic groups of flagellates: the colpodellids, phagotrophic predators, and the chromerids, photosynthetic algae that live as symbionts of corals. These groups were independently discovered and described, but molecular phylogenetic analyses demonstrated that they are intermingled in a clade that is the closest relative to Apicomplexa, and they became collectively known as chrompodellids. Due to the history of their research, they are variously known in biological classification as Chromerida or Colpodellida (ICZN)/Colpodellales (ICN).

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