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
______________________________________________________________________________________________ 
/-- Earlier Life (Based on RNA and Protein)   +====> [ 41]
/-- Last Universal Ancestor of Present Life
/-- Proto-Bacteria  (3700 M BC)
/-- Glycobacteria
/-- Eurybacteria
/-- Superphylum Endobacteria
/   | (skip this generation?)
/-- Phylum Actinobacteria
/-- Class Actinobacteridae
/-- (NN), a thermophilic Bacterium
/   | OR: (NN), a very special Archaeote   +====> [ 52]
/-- (NN), a Nucleated Cell
/-- Eurybacteria   +====> [ 45]
/-- Superphylum Endobacteria
/   | (skip this generation?)
/-- Phylum Actinobacteria
/-- Class Actinobacteridae
/-- (NN), a thermophilic Bacterium
/-- Superdomain of Neomura
| or: (NN), a Bacterium
/-- Superphylum Endobacteria   +====> [ 46]
/   | (skip this generation?)
/-- Phylum Firmicutes
/-- Order Clostridiales (incl. sulfate-reducing bacteria)
/-- Family Clostridiaceae
/  \-- Clostridium
/  \-- (NN), a Cell Nucleus
- Domain of Eukaryotes
/-- Proto-Bacteria   +====> [ 43]
/-- Glycobacteria
/-- Gracilicutes
/-- Clade of Proteobacteria & Planctobacteria
/-- Phylum Proteobacteria (purple bacteria & kin)
/-- Class Alphaproteobacteria
/-- Order Rickettsiales
\-- Pre-Mitochondrion Bacteria
 

 
  (poss.) ``Grandchildren:''       Kingdom of 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. 83   ©   Jamie, 1997-2017