====================================================================== I. |II.| III. | IV. | V. |VI.| VII. | | | | | |Generations. -----------+---+-----------+----------+--------------+---+------------ |} |} |} |Adam and Eve | | 250 Recent |} 5|} |} |Man, contem- | | 3,500 Plistocene |} |} |} 270,000| porary with | | | |} |} | Reindeer | | | |} |} | in France | | Pliocene -|} |} 3,000,000| |_Pithecanthro-| 16| 17,000 |} |} |} 600,000| pus erectus_| | Miocene -|}10|} |} |Anthropoid | 10| 60,000 |} |} |}2,100,000| Apes | | Eocene -|} |} |} |Lemures | 5| 420,000 | | | | | | Cretaceous | 10|} | 3,600,000| | | Jurassic - | 5|} | 1,800,000| | | Rhætic -|} |} |} |Prototheria, | 3| 1,800,000 |} |} |} | or first | | |} |} 7,200,000|} | Mammalia | | Keuper -|} |} |}1,800,000| | | Muschel- |} 5|} |} | | | kalk |} |} |} | | | New Red |} |} |} |Theromorpha | 4| 425,000 Sandstone| | | | | | Magnesian |} |} |} | | | Limestone|} |} |} | | | Lower Red |} |} |} |Proreptilia | 4| 250,000 Sandstone|} |} |}4,000,000| | | Coal- |}15|} |} |Eotetrapoda | 4| 500,000 measures |} |} |} | | | Mountain |} |}17,500,000|} | | | Limestone | |} | | | | Devonian -| 15|} | 4,000,000|Dipnoi and | 5| 1,000,000 | |} | |Crossopterygii| | Silurian -| 10|} | 2,700,000|First fishlike| 3| 900,000 | |} | | creatures | | Ordovician | 10|} | 2,700,000| | | Cambrian -| 15|} | 4,000,000| Sum total of| | Laurentian | | | | generations| | --------- Archæan | | | | (about) | | 5,375,000 or Meta- | | | | | | morphic | | | | | | ====================================================================== EXPLANATION OF THE TABLE ON P. 149.