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Taxa

Chromista

Kingdom

Chromista is a proposed kingdom of single celled and multicellular eukaryotes, refined from the earlier concept of Chromalveolata, uniting organisms whose photosynthetic plastids share chlorophyll c and are bound by four membranes, thought to trace back to a shared red algal endosymbiosis; many non photosynthetic members are believed to have secondarily lost that ability. The kingdom remains controversial, since its member groups may instead have arisen independently from the last common eukaryotic ancestor rather than forming one natural group.

Facts
Taxonomic Rank
Kingdom 2
Member Count Band
Over 1000 Species 3
Era First Appeared
Precambrian 4
Classification
Living or Extinct
Yes 1
Connections

Parent Taxon Of

Skeletonema Costatum, Species
Source Wikidata: Skeletonema Costatum
Thalassiosira Pseudonana, Species
Source Wikidata: Thalassiosira Pseudonana
Sources
1. Wikidata (taxon extant/extinct status)
Wikimedia Foundation / Wikidata contributorsQ862296, descriptionView the Source
2. Wikipedia: Chromista
  • Taxonomic rank (Wikipedia confirms the entity; rank from slug/structure-wave classification)
  • In Group: Eukaryote Kingdoms, Lead
    Chromista is a proposed but controversial biological kingdom, refined from the Chromalveolata, consisting of single-celled and multicellular eukaryotic species that share similar features in their photosynthetic organelles (plastids).
View the Source
3. Catalogue of Life (ChecklistBank): Taxon metrics for Chromista
Catalogue of Life (ChecklistBank)Taxon metrics, speciesExtantCount
Quote, Taxon metrics, speciesExtantCount
"speciesExtantCount": 21508
View the Source
4. Paleobiology Database: Taxon record for Chromista
Paleobiology DatabaseTaxon record, first appearance (firstapp_max_ma, early_interval)
Quote, Taxon record, first appearance (firstapp_max_ma, early_interval)
"taxon_name": "Chromista" ... "firstapp_max_ma": 635 ... "early_interval": "Ediacaran"
View the Source
Wikidata: Chromista
Wikidata Q862296, class allow-list match (w-wdresolver-0926)View the Source
Wikidata: Thalassiosira Pseudonana
Parent Taxon Of: Thalassiosira Pseudonana, Wikidata parent-taxon (P171) chainView the Source
Wikidata: Skeletonema Costatum
Parent Taxon Of: Skeletonema Costatum, Wikidata parent-taxon (P171) chainView the Source
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