What are the Earth's eras in order?

Question

There is Mesozoic, Paleozoic, Precambrian, and Cenozoic. But what is the order that they came in and the dates?

Answer 1

PreCam, Paleo, Meso, Ceno..........that's from oldest to youngest.

As for dates: http://en.wikipedia.org/wiki/Geologic_Time_Scale#Graphical_timelines

Answer 2

Paleontologist have divided Earth's history into eras, periods, and epochs. Monumental events and changes mark the end of one time frame, and the beginning of another. The Precambrian is the first time frame in Earth's history, begining with the birth of the Earth, and ending with an event called the "Cambrian Explosion". An abundance of diverse life found in the Burgess Shell marks the Cambrian Explosion. This explosion was latter seen to be less of a sudden increase in families, and marked more by extraordinarily good conditions for the formation of fossils. Still, that early exclamation still lives with us today. The Cambrian Explosion begins the Paleozoic Era which saw the evolution of mulicellular organisims, and the evolution of shells. The Paleozoic Era ended with a mass exticntion caused by the impact of a comet or asteroid 250mya. The exit of the Paleozoic Era herladed the begining of the The Mesozoic Era, which saw the rise and fall of the dinosaurs. Both dinosaurs and the Mesozoic Era ended when another comet struck the Earth 65mya. This event rose the curtain on the Cenozoic Era, the age of mammals, birds, bony fish, and flowering plants.What event will end the Cenozioc?

Answer 3

Well, things like historical records, the person's own writings, photographs, DNA samples all help, though as has been said, a lot of that can be faked, or even if its real, people can find a way to not believe it if they're thickheaded enough. Scientifically speaking, DNA is the best way to go for proving existence I would guess. Writings and photographs can be faked fairly easily. Though it's interesting you picked figures like Napoleon and Caesar as your examples there. I suppose that one could, if one wanted, to think that there was no world before they existed, that all of history isn't real because you didn't witness it. Of course then we're straying into the crazy realms of how do you decide what's real or not... And I think the reason it's easier for people to believe that Napoleon existed rather than Jesus is because the Bible tells of many miracles that seem to defy logic and science, such as Jesus' resurrection. However, question asker, you're wrong about the Bible not being written by eye witnesses or people that knew Jesus. The Gospels were written by men who traveled with him and witness the things he did. If you believe it, that is. Oh, and there's pretty decent proof that Jesus of Nazareth was a real person who actually existed. The main contention is over all the miracles and stuff.

Answer 4

Eras In Order

Answer 5

Eras Of Earth

Answer 6

From oldest to youngest:Pre-Cambrian (Archeozoic with no signs of life, and Proterozoic with first signs of life); Paleozoic (Cambrian -first marine invertebrates, Ordovician-first fish, Silurian-first traces of life on land, Devonian-first amphibians and primitive land plants, Carboniferous-includes Mississippian-primitive ammonites and Pennsylvanian-first reptile, Permian-rise of reptiles, last of many land plants and animal groups); Mesozoic (Triassic rise of dinosaurs, Jurassic-First birds and mammals, Lower Cretaceous-flowering plants, Upper Cretaceous-Primitive mammals and last dinosaurs); Cenozoic (Lower Tertiary-Paleocene Eocene and Oligocene-rapid development of modern mammals, Upper Tertiary-{Pliocene Miocene-modern animals and plants). The age of oldest dated rocks is about 3,500,000,000 years. Of that about 84% was before the Paleozoic, 9% in the the Paleozoic, 5% in the Mesozoic, 2% in the Cenozoic.

oldst to now: Pre-Cambrian, Paleozoic, Mesozoic, Cenozoic.

Answer 7

easiest way to remember-they go in alphabetical order:

C-enozoic
M-esozoic
Pa-leozoic
Pr-ecambrian

Youngest to oldest