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Cryptista is a clade of algae-like eukaryotes. It is most likely related to
Archaeplastida The Archaeplastida (or kingdom Plantae ''sensu lato'' "in a broad sense"; pronounced /ɑːrkɪ'plastɪdə/) are a major group of eukaryotes, comprising the photoautotrophic red algae (Rhodophyta), green algae, land plants, and the minor group ...
which includes plants and many algae, within the larger group
Diaphoretickes Diaphoretickes () is a major group of eukaryotic organisms, with over 400,000 species. The majority of the earth's biomass that carries out photosynthesis belongs to Diaphoretickes. Diaphoretickes includes: * Archaeplastida (comprising red alg ...
. Although it has sometimes placed along with Haptista in the group Hacrobia, within the kingdom
Chromista Chromista is a biological kingdom consisting of single-celled and multicellular eukaryotic species that share similar features in their photosynthetic organelles (plastids). It includes all protists whose plastids contain chlorophyll ''c'', suc ...
, most recent studies have found that Hacrobia is not a clade. For example, in 2016, a broad phylogenomic study found that cryptists fall within the group
Archaeplastida The Archaeplastida (or kingdom Plantae ''sensu lato'' "in a broad sense"; pronounced /ɑːrkɪ'plastɪdə/) are a major group of eukaryotes, comprising the photoautotrophic red algae (Rhodophyta), green algae, land plants, and the minor group ...
, while haptophytes are closely related to the SAR supergroup.


Taxonomy

Based on studies done by Cavalier-Smith, Chao & Lewis 2015 *''
Corbihelia Corbihelia is a proposed phylum of eukaryotes. Classification Based on studies done by Cavalier-Smith, Chao & Lewis 2015 * Super Class Endohelia Cavalier-Smith 2015 ** Class Endohelea Cavalier-Smith 2012 *** Order Microhelida Cavalier-Smith 201 ...
'' ** Phylum Microheliellida Tedersoo 2017 ndohelia Cavalier-Smith 2015*** Class
Endohelea Endohelea is a proposed clade of eukaryotes that are related to Archaeplastida and the SAR supergroup The SAR supergroup, also just SAR or Harosa, is a clade that includes stramenopiles (heterokonts), alveolates, and Rhizaria. The name is an ...
Cavalier-Smith 2012 * Clade Cryptista s.s. ** Phylum Palpitophyta Tedersoo 2017 *** Class
Palpitea Palpitea is a proposed clade of eukaryotes that are related to Archaeplastida and the SAR supergroup The SAR supergroup, also just SAR or Harosa, is a clade that includes stramenopiles (heterokonts), alveolates, and Rhizaria. The name is an ...
Cavalier-Smith 2012 ** Clade
Rollomonadia Rollomonadia is a proposed subphylum of cryptists, including all currently described cryptist species except Palpitomonas bilix. References {{Cryptista Cryptista Hacrobia ...
Cavalier-Smith 2013 stat. nov. *** Phylum Kathablepharidophyta Okamoto & Inouye 2005 eucocrypta Cavalier-Smith 2015**** Class
Leucocryptea The katablepharids, a group of heterotrophic flagellates, have been considered as part of the Cryptista since katablepharids were described in 1939. Although they differ from other cryptophytes and have even been proposed to be alveolate The al ...
Cavalier-Smith 2004 athablepharidea (sic) Okamoto & Inouye 2005; Kathablepharidophyceae*** Phylum
Cryptophyta The cryptophyceae are a class of algae, most of which have plastids. About 220 species are known, and they are common in freshwater, and also occur in marine and brackish habitats. Each cell is around 10–50 μm in size and flattened in shape, ...
Pascher 1913 em. Adl et al. 2012 ( Cryptomonada Cavalier-Smith 2004 sta. n.] **** Class Goniomonadea Cavalier-Smith 1993 **** Class
Cryptophyceae The cryptophyceae are a class of algae, most of which have plastids. About 220 species are known, and they are common in freshwater, and also occur in marine and brackish habitats. Each cell is around 10–50 μm in size and flattened in shape, ...
Fritsch 1937


References


External links


Tree of Life: Hacrobia
Infrakingdoms Taxa named by Thomas Cavalier-Smith {{Hacrobia-stub