The PEDIGREE of
Family Rickettsiaceae

     (DISEASES)

 "Child(ren)":       Genus Orientia   ;   Rickettsia (typhus : rickettsialpox : Australian tick typhus : Boutonneuse fever : tick bite fever : spotted fever : etc.)   ;   Wolbachia
________________________________________________________________________________________________________ 
/-- Earth of Lower Imbrian Era (Hadean Eon)   +====> [ 36]
/-- 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)
/   / (skip this generation?)
/-- 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
/-- Subclass Rickettsidae
/-- Order Rickettsiales
/  
- Family Rickettsiaceae
 

 
  ``Grandchild:''       Orientia tsutsugamushi
 

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