The PEDIGREE of
Order Desulfurococcales

     (many of these species are known to be very resistant to radiation as well as heat)

 "Child(ren)":       Family Desulfurococcaceae   ;   Pyrodictiaceae
________________________________________________________________________________________________________ 
/-- Earth Collides with Theia   +====> [ 32]
/-- Earth of Cryptic Era (Hadean Eon)
/-- Earth of Basin Groups Era (Hadean Eon)
/-- 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)  (3850+ M BC)
/   / (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
/-- Domain of Archaeota
/   / OR: prob. not (NN), a peculiar Symbiote   +====> [ 51]
/-- Kingdom Crenarchaeota
/-- Phylum Crenarchaeota (Eocytes)
/-- Class Thermoprotei
/  
- Order Desulfurococcales
 

 
  ``Grandchild:''       Genus Ignicoccus (in phylum Crenarchaeota)
 

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