Friday, September 17, 2021

160,000,000 BP to 140,000,000 BP

160,000,000 BP to 140,000,000 BP















145,000,000 BP to 140,000,000 BP: time of the Berriasian Age of the Cretacious Period.
145,000,000 BP to 66,000,000 BP: Cretaceous Period is divided into two Ages: the Valanginian Age and the Berriasian Age. During this time placental mammals appear. It is also the time of the beginnings of the Laramide and Sevier orogenies of Rocky Mountains of North America. Atmospheric co2 was close to present day levels.





140 Mya to 130 Mya: This is the Valanginan Age of the Cretaceous Period.








Monday, September 6, 2021

140,000,000 BP to 120,000,000 BP

 140 Mya to 120 Mya, millions of years ago


140,000,000 BP to 130,000,000 BP: time of the Valanginian Age of the Cretaceous Period.



135,000,000 BP, Cretaceous period: Flowering plants appeared at this time an diversify into the main flowering plant families we know today.


132,000,000 BP: The pillars of Hercules were not and the gates of Atlanta were not closed. The Atlantic ocean penetrated deep into what is now the Sahara.



0.126 Mya, Late Pleistocene, sometimes called the Tarantian: Eemian interglacial, Last glacial period ending with the Younger Dryas. Toba eruption. Megafauna extinction.

Saturday, September 4, 2021

300,000,000 BP to 280,000,000 BP

 300,000,000 to 280,000,000 BP




298.9 Mya, Cisuralian, Asselian: The firs true mosses, beetles and flies evolve.
Marine flourish in warm shallow seas.



295 Mya, Cisuralian, Sakmarian: Coal age flora are being replaced by cone-bearing gymnosperms, the first true seed plants


290.1 Mya, Cisuralian, Artinskian: Amphibians are common. Cone bearing flora appearing.


283.5 Mya, Paleozoic, Permian, Cisuralian, Kungurian: Parareptiles and temnospondyl amphibians are common. 




 

 

 

        












251,900,000 BP to 201,300,000 BP: Triassic Period: This time has been called the Triassic Period. The Triassic Period falls after the Permian Period and before the Jurassic Period. First evidence of mammals appear, a mouse like critter is found to lie within the Period. This geologic period ended with a mass extinction of species.



1,000,000 BP to 500,000 BP

1,000,000 BP to 500,000 BP

 

 

 

 800,000 BP: There may well have been neanderthal type of people in what is now Europe. Neanderthals may have continued to occupy the area for several 100,000 years.

~ Also about this time a large volcanic eruption occurred at Kyushu, Japan. Four large eruptions continued there between 300,000 and 80,000 BP.