The PEDIGREE of
Domain of Eukaryotes

 
     (one-celled Eukaryotes are collectively called Protista; various clading schemes have been proposed for Eukaryotes: Archaeplastida, Excavata, Opisthokonts, and S.A.R. are now the most accepted major groups, but clading within these branches is conjectured as shown; Eukaryotes began as a unique SYMBIOSIS)

    Note: I had fun adding part of the Tree of Life to my tree. If any websurfer finds it useful, please send me e-mail!
 
    Note: Parts of the tree of life are still controversial, for two reasons: (1) much evolution occurred in brief flurries like the Cambrian revolution 600 million years ago; (2) Cross-species genetic transfer (in which a species has no single clearcut ancestor), while rare, probably was responsible for many key advances.
   Thus plants and animals both evolved from early eukaryotes, which differentiated rapidly 1 billion years ago, after ingesting prokaryotes -- photosynthesizing prokaryotes in the case of plants, or oxidizing in the case of animals. (I even thought of using the `mother' branch of the pedigree to suggest such genetic transfers!)

     Born:  2100 M BC


 "Child(ren)":       Superempire Unikonta   ;   Subdomain Bikonta   ;   Centrohelida   ;   poss. Collodictyonida   ;  poss.   Superempire Corticata
 poss. "Partner(s)":       Subdomain Bikonta
____________________________________________________________________________ 
/-- prob.  Kingdom Crenarchaeota   +====> [ 44]
/   | or: T.A.C.K. Subdomain
/-- (NN), a very special Archaeote
/-- pre-Eukaryote
/-- Order Rickettsiales   +====> [ 49]
/  \-- Pre-Mitochondrion Bacterium
/-- proto-Eukaryote
/-- Phylum Actinobacteria   +====> [ 47]
/-- Class Actinobacteridae
\-- (NN), a thermophilic Bacterium
/-- Proto-Bacteria   +====> [ 43]
\-- a Bacterium
/   \-- another Prokaryote   +====> [ 44]
/-- The First Eukaryote
/-- Last Universal Ancestor of Present Life   +====> [ 42]
/   | OR: Last Universal Common Ancestor (LUCA)   +====> [ 9]
/-- Proto-Bacteria  (3700 M BC)
/-- (NN), a Bacterium
/-- an Archeaote   +====> [ 44]
\-- (NN), an Archeaote
/   \-- another Archeaote   +====> [ 44]
\-- (NN), a (thermophilic?) Bacterium
/-- Last Universal Ancestor of Present Life   +====> [ 42]
/   | OR: Last Universal Common Ancestor (LUCA)   +====> [ 9]
/-- Proto-Bacteria  (3700 M BC)
\-- a Bacterium
/-- Proto-Bacteria   +====> [ 43]
/   \-- yet another Bacterium
- Domain of Eukaryotes
 

 
  (poss.) ``Grandchildren:''       Kingdom of Apoikozoa (Animals)   ;   Kingdom of Eumycota (True Fungi)   ;   Superphylum Discoba (Euglena & distant kin)   ;   Superphylum Retaria   ;   Superkingdom of Metabionta   ;   Subkingdom S.A.R. (Stramenopiles & Alveolates & Rhizaria)   ;   Subkingdom Harosa   ;   Kingdom of Viridiplantae (Green Plants)   ;   Phylum Rhodophyta (Red Algae)   ;   Division Heterokontophyta (Diatoms, Brown Algae, Golden Algae, etc.)   ;   Superphylum Alveolata   ;   Infrakingdom Rhizaria   ;   Infrakingdom Halvaria
 

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FabPed Genealogy Vers. 100   ©   Jamie, 1997-2020