MESOZOIC ERAPresented by: Natalia Agudelo Juan Sebastián Landázuri Daniela González Rojas Fabio Baena

Triassic= Age of reptiles Start 284 million years ego Cover 35 years

Jurassic= Begins 213 million years ego Cover 69 million years

Cretaceous= Is the longest period Start 114 million years egoCover 79 million years

HOW IS DIVIDED?

3

The First period “Age of reptiles”

Crocodiles, turtles. The earliest mammals evolved.

Small sizes (like a mouse) Permanent extinction=extreme natural conditions

TRIASSIC PERIOD1

The environment in all the periodVolcano eruptionGlobal coolingSeparation of the tectonic floor.

Extra= coral was already in the ocean it survive the terminal extinction

ENVIRONMENT

Dinosaurs were the most common animalThey rule about 150

million years in all the times

They evolved ( Archaeopteryx)

JURASSIC PERIOD2

At all the JurassicHot and dryThe season were more notariesFlower plants evolvedThe laurasia and gondwana separation

Extra= sharks, rays, ammonites and crocodiles appear.

ENVIRONMENT

The longest period The reptiles still rule

Giants Sauropod Massive extinction

(more than half of the animals and plants)=asteroid

Ouranosaurus

Mosasaurus

3 CRETASEOUS PERIOD

The beginning Warm temperatureNo polar iceSea levels were high

At the endSeveral climate changesVolcanic eruptionSea levels were lower

ENVIRONMENT

Triassic period

Jurassic period

Cretaceous period

laurasia

Gondwana

PANGEA

Bibilografy Jesuit University. Geological Time.

http://www.cotf.edu/ete/modules/msese/earthsysflr/mesozoic.html. April 28, 2005

Col, Jeananda. Zoomdinosaurs. http://www.enchantedlearning.com/subjects/dinosaurs/mesozoic/cretaceous/ .1996

Col, Jeananda. Zoomdinosaurs. http://www.enchantedlearning.com/subjects/dinosaurs/mesozoic/triassic/ .1996

Col, Jeananda. Zoomdinosaurs. http://www.enchantedlearning.com/subjects/dinosaurs/mesozoic/jurassic/ .1996

http://www.bobainsworth.com/fossil/mesozoic.htm 01/08/2011 http://www.youtube.com/watch?v=Mt6ip7xD3ZI