Concise hierarchy

(Kingdom) Chromista

Phylogeny

Crown clade		Ref: A.G.B. Simpson & M. Dunthorn, 2020: [51] ("minimum-crown-clade").
Reference phylogeny [PhyloCode]		Ref: A.G.B. Simpson & M. Dunthorn, 2020: [51] (Burki et al., 2008: fig. 1).

Defined by the most recent common ancestor (and all its descendants) of

Bigelowiella natans Moestrup & Sengco, 2001		Ref: A.G.B. Simpson & M. Dunthorn, 2020: [51].
Tetrahymena thermophila Nanney & McCoy, 1976		Ref: A.G.B. Simpson & M. Dunthorn, 2020: [51].
Thalassiosira pseudonana Hasle & Heimdal (1970)		Ref: A.G.B. Simpson & M. Dunthorn, 2020: [51] ("Cleve 1873").

Qualified by excluded taxon

Arabidopsis thaliana (L.) Heynh. (1842)		Ref: A.G.B. Simpson & M. Dunthorn, 2020: [51].
Dictyostelium discoideum Raper, 1935		Ref: A.G.B. Simpson & M. Dunthorn, 2020: [51].
Emiliania huxleyi (Lohmann) Hay & Mohler (1967)		Ref: A.G.B. Simpson & M. Dunthorn, 2020: [51].
Euglena gracilis Klebs, 1883		Ref: A.G.B. Simpson & M. Dunthorn, 2020: [51].
Homo sapiens Linnaeus, 1758		Ref: A.G.B. Simpson & M. Dunthorn, 2020: [51].

Current position

Harosa (Subkingdom) Cavalier-Smith, 2010

Ref: A.G.B. Simpson & M. Dunthorn, 2020: [51]. [indirect]

Alternative positions

Eukarya (Clade) R. Creti, F. Citarella, O. Tiboni, A. Sanangelantoni, P. Palm & P. Cammarano 1991 [Simpson 2020]

Ref: A.G.B. Simpson & M. Dunthorn, 2020: [51]. [validated name]

Historical positions

Eukarya (Clade) R. Creti, F. Citarella, O. Tiboni, A. Sanangelantoni, P. Palm & P. Cammarano 1991 [Simpson 2020]

Ref: A.G.B. Simpson & M. Dunthorn, 2020: [51]-53; [v]. [validated name]

Number of Subtaxa

2024	Available in Systema Naturae 2000	7p;74c;343o;1106f;5061g;9000s;84ss;599v; †35o;332f;3145g;1000s;94ss
1989-present	Systema Naturae 2000: 27 Jan 2024	[7p;74c]