The PEDIGREE of
Order Rickettsiales

 "Child(ren)":       Pre-Mitochondrion Bacterium   ;   Family Rickettsiaceae
________________________________________________________________________________________________________ 
/-- Earth of Basin Groups Era (Hadean Eon)   +====> [ 34]
/-- Earth of Nectarian Era (Hadean Eon)
/-- Earth of Lower Imbrian Era (Hadean Eon)
/-- Earth of Eoarchean Era (Archean Eon)
/-- Non-reproducing Precursor Organism
/-- Earliest life (Based on Peptide Nucleic Acid)
| or: polyamide nucleic acid
| or: glycol nucleic acid or: threose nucleic acid
/  \-- Montmorillonite-based Vesicles
/-- Earlier life (Based on RNA)
/-- Earlier Life (Based on RNA and Protein)
/-- Last Universal Ancestor of Present Life
| OR: Last Universal Common Ancestor (LUCA)   +====> [ 9]
/-- Alkaline hydrothermal vents
/  \-- Tiny cavities in iron sulphide rocks
/-- Proto-Bacteria  (3700 M BC)
/-- Glycobacteria (Traditional Model)
/-- Gracilicutes (Traditional Model)
/   | OR: Subkingdom Hydrobacteria (Terra-Hydro Model)   +====> [ 45]
/-- Clade of Proteobacteria & Planctobacteria
/-- Phylum Proteobacteria (purple bacteria & kin)
/-- Class Alphaproteobacteria
/  
- Order Rickettsiales
 


  ``1-Great Grandchildren:''       proto-Eukaryote   ;   Orientia tsutsugamushi
 
  (poss.) ``3-Great Grandchildren:''       Domain of Eukaryotes   ;   Domain Eukaryota [alt ped]   ;   Domain Eukaryota (Eight Kingdom Model)
 

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