Oxygen Levels were approximately 10% of what they are today. As photosynthesis only began in the Precambrian period the amount of carbon dioxide and oxygen in the atmosphere would be very small compared to modern times. In fact, human's probably wouldn't have been able to breath.
in the Jurassic period the atmosphere was about 14.7. in the Jurassic period the atmosphere was about 14.7.
It ended from mass extinction.
To the Sourthern Hemisphere
Yes, in fact oxygen level in the pre-cambrian reach high enough levels to allow multi-cellular life.
Trilobites first appeared in the fossil record in the Atdabanian stage of the Early Cambrian period. The fist brachiopods likewise first appeared in the Early Cambrian era.
The only plant from the Cambrian period is algae.
The Ediacarian fauna are from the Cambrian Explosion. The Cambrian Explosion occurred in the Cambrian period. The Cambrian period was part of the Paleozoic era.
generally warm, wet, and mild
In the Cambrian period, the world's oceans were beginning to form because the glaciers were melting. Most of the world's land was in the Southern Hemisphere.
There was no language used in the Cambrian period. Humans had not yet evolved.
Haikouichthys and Myllokunmingia were two vertebrates in the Cambrian Period
The Cambrian Period
Ordovician .
it looked hot and spicy
in the Jurassic period the atmosphere was about 14.7. in the Jurassic period the atmosphere was about 14.7.
Pre-cambrian
Carboniferous Silurian Ordovician Devonian Cambrian Pre Cambrian