Geological timescale

 
    Science
    Theosophy
       Began (years BP)
     Began (years BP)
  Phanerozoic eon    
    Cenozoic era    
    Quaternary period:    
      Holocene epoch
11,700
 
      Pleistocene
2,588,000
1,090,000
    Tertiary period:    
      Pliocene
5,333,000
1,870,000
      Miocene
23,030,000
3,670,000
      Oligocene
33,900,000
5,280,000
      Eocene
56,000,000
7,130,000
      Palaeocene
66,000,000
7,870,000
 
    Mesozoic era    
    Cretaceous
145,000,000
16,000,000
    Jurassic
201,300,000
28,000,000
    Triassic
252,170,000
44,000,000
 
    Palaeozoic era    
    Permian
298,900,000
74,000,000
    Carboniferous
358,900,000
110,000,000
    Devonian
419,200,000
148,000,000
    Silurian
443,400,000
179,000,000
    Ordovician
485,400,000
214,000,000
    Cambrian
541,000,000
250,000,000
 
  Proterozoic eon
2,500,000,000
1,120,000,000
 
  Archean eon
4,000,000,000
1,890,000,000
 
  Formation of earth
4,600,000,000
2,170,000,000


According to theosophy, the fourth round of the earth’s evolution began about 320 million years ago, at the end of the Proterozoic. The corresponding scientific date is about 640 million years ago.

Sources:
2013 International Stratigraphic Chart, http://www.stratigraphy.org/ICSchart/ChronostratChart2013-01.pdf
H.P. Blavatsky, The Secret Doctrine, TUP, 1977 (1888), 2:68-70, 709-15
Frederick J. Dick and William Scott, ‘The age of the earth’, The Theosophical Path, April 1919, pp. 369-79
David Pratt, Geochronology: theosophy and science and Secret cycles, www.davidpratt.info

Problems with radiometric dating:
G. de Purucker, The Esoteric Tradition, 2nd ed., TUP, 1940, pp. 324-7, 453-4, 760
David Pratt, The age of earth, www.davidpratt.info



Last revised: March 2013.


Root-race chronology

Rounds and manvantaras: an outline

Evolution in the fourth round

Homepage