Tuesday, January 10, 2017

The Eras

Select one of the three eras of geological time and post an important event in the history of life from that era.


65 comments:

anthony johnson said...

jurassic

Nico J. said...

In the mesozoic era there were tons of dinosaurs. They all died before the cenozoic era though.

Anonymous said...

Paleozoic and mass extinction

jack Hanson said...

The Mesozoic eara thats when the dinos really became a mass substance

MacKay W said...

In the Paleozoic there was mass extinction.

Mitchell H. said...

Paleozoic Mesozoic cenozoic.

Anonymous said...

The rise of the mammals began to rise in the Cenozoic era.

Cameron Frost said...

During the Jurassic period, the Pangea spilt apart

Allie H. said...

In the Paleozoic era when seas were closing and mass extinction happened.

Tessa L. said...

Mesozoic era, thee were dinosaurs.

CrankGamePlays GF ( Coli ) said...

The super continent broke up in the Paleozoic Era.

anthony johnson said...

it had dinosaurs

mckenzi said...

the mesozoic one important was when th dinosaurs died in a horrible death of fire and hell

T Frazz said...

In the Cenozoic Era there were seeds with flowers, its called Abundant Angiosperms

Gab W. said...

Mesozoic all of the darn dinos exploded and dide from a big rok

MacKay W said...

In the Paleozoic, the super continent (Pangea) broke apart, seas were closing, and mass extinction was occurring.

JACK A said...

The mesozoic era when the dinosaurs got killed by asteroids and latter on the cenozoic era started.

Anonymous said...

did me doo rite

Allie H. said...

The end of the Paleozoic era was when seas were closing, and at the beginning of the cenozoic era mammals started to rise.

Elise R. said...

Paleozoic era, when pangaea formed.

KENNYB said...

Jurassic

vincent said...

all three eras =mass extion then life and repeat

laysse said...


During part of the Jurassic period, the Pangea spilt apar

vinent said...

never mind the meziioc era is when the cold bloods/reptials come in to rule such as t-rex or some other dinos until the mezoic era ended

nova.s said...

In the Paleozoic era when seas were closing and mass extinction happened.

Anonymous said...

cenozoic and mass extinction

AlexisR said...

In the Paleozoic era when seas were closing and mass extinction happened

Anonymous said...
This comment has been removed by the author.
Hailey R said...

mesozic ear because i like tricaratops. they came along in the late Cretaceous period, around 68 to 66 million years ago

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TIMMY Z. said...

I would choose the mesozoic era because it was when the T-rex and all other dinosaurs lived in that era. A major part in history was when the dinosaurs were extinct which was about 65.5 million years ago.

Anonymous said...

Cretaceous period, because thats when the dinosaurs went extinct!💩

Hannah C said...

During part of the Jurassic period, the Pangea spilt apart

Austin K said...

Mesozoic era in this era there where three of 5 largest mass extinctions

Grace D said...

paleozoic, mass extinction

Anonymous said...

Mesozioc

Grace Q said...

jurassic and the pangea split

kolhy said...

jurassic

william said...

I would choose the mesozoic era because it was when the T-rex and all other dinosaurs lived in that era. A major part in history was when the dinosaurs were extinct which was about 65.5 million years ago.

Emma B said...

Paleozoic era there was mass extinction.

Ethan F. said...

The dinosaurs existed during the Cenozoic Era.

Ariella S said...

Mesozoic. Then mass extinction.

Alexia S said...

The super continent broke up in the Paleozoic Era

Ethan R said...

mesozoic dinosaurs

Kadie K said...

In the Cenozoic Era there were seeds with flowers its called Abundant Angiosperms.

Zoe Schmaling said...

In the middle of the mesozoic era there was an evolution of life on earth it was the..... Dinosaurs.

Erica C. said...

The Middle Life Mesozoic had reptiles.

Brianna G said...

Mammals exist in the Cenozoic era.

Ethan F. said...

Sorry, I meant mesozoic

Macey C. said...

At the end of the mesozoic era, the dinosaurs went extinct.

caden frost is kool said...

Paleozoic era there was mass extinction.

Cameron G said...

Pangaea began to drift apart in the Jurassic era.

Zach R said...

Pangaea started to drift apart in the Jurassic era.

Mason R. said...

Paleozoic and mass extinction.

David R. said...

cenozoic no dinosaurs

Jace S. said...

Cambrian, Trilobites appear.

papa ryans said...

Paleozoic and mass extinction.

abigail cornish said...

jurassic time period

Gabby S said...

Paleozoic, and mass extinction.

lindsey p said...

The mesozoic era had a mass extinction of dinosaurs.

reegant said...

jurassic

Cole Mac. said...

Mesozoic era and the dinosaurs rose up and ruled the world.

Drew C said...

Mesozoic = Mass Extinction

Xander B said...

the largest animal to have ever lived the blue wale is in the cenozoic era

Emily S said...

In the Mesozoic Era there were a lot of different dinosaurs until there was a mass extinction.

Anonymous said...

In the Mesozoic Era there were a lot of different dinosaurs until there was a huge massive extinction.