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Ancestral taxa
Domain: Eukaryota  [Taxonomy; edit]
Kingdom: Plantae  [Taxonomy; edit]
Clade: Streptophyta  [Taxonomy; edit]
Clade: Embryophytes  [Taxonomy; edit]
Clade: Polysporangiophytes  [Taxonomy; edit]
Division: Tracheophytes  [Taxonomy; edit]
Genus: Cooksonia  [Taxonomy; edit]

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Parent: Tracheophyta/Division [Taxonomy; edit]
Rank: genus (displays as Genus)
Link: Cooksonia
Extinct: yes
Always displayed: yes (major rank)
Taxonomic references: Authority: Lang (1937) emend. Gonez & Gerrienne (2010)
Parent's taxonomic references: Authority: Sinnott (1935) ex Cavalier-Smith (1998)