The Jurassic period occurred between 206-144 million years ago as part of the Mesozoic era. The climate was warm with tropical and temperate conditions worldwide. The atmosphere contained high levels of carbon dioxide and continents had separated into Laurasia and Gondwana. Dinosaurs like Brachiosaurus and Allosaurus roamed on land while ichthyosaurs, plesiosaurs, and crocodyliforms inhabited the seas and oceans. Sauropods were particularly abundant and diverse during this time.

1. The Jurassic Period
Presented by: Muhammad Nadeem
Submitted to: Prof: Dr. Abdul Ghaffar
Dilophosaurus.
You’ll learn about them later.

2. The Jurassic period: what does it mean?
The Jurassic period, which occurred between the Triassic and Cretaceous
periods in the Mesozoic era, which means “The Age of Reptiles”.

3. How long did it last?
This period lasted from to 206 to 144
million years ago and ended with a mass
extinction and the beginning of
Cretaceous period.
It started with a major extinction event
as well, with most invertebrates going
extinct. The Jurassic period was a part of
the Mid-Mesozoic era.

4. Earth’s Climate During this time
The Earth’s climate during the Jurassic period was quite warm, with
tropical climates and temperate ones. Scientists have found that there
weren’t many glaciers during this time and many lush forests,
indicating that it was warmer during this period.

5. The atmosphere during this time
Science shows the atmosphere was humid, cloudy, and had much more
carbon dioxide in the air than the current atmosphere.

6. Earth’s continents during the Jurassic Period
This was right after pangea
broke up, so there were only 2
supercontinents:
1.Laurasia
2.Gondwana
Laurasia was in the north
while Gondwana was in the
south. Laurasia is now North
America, Europe and Asia;
Gondwana is currently South
America, India, Africa,

7. Although the term Jurassic may conjure up images of dinosaurs like Tyrannosaurus rex,
stegosaurus, Aptosaurus and Applosaruus.The Jurassic period was the golden age for
sauropods, large, long-necked quadruped dinosaurs. The most famous being Brachiosaurus, the
ancestor to the largest dinosaur known to have walked the planet, Argentinosaurus, a 100 ton
sauropod. Certain sauropods, like Mamenchisaurus (below), had necks more than half their
entire body length, making scientists question even today how they held their heads up.
Dinosaurs of the Jurassic - On The Ground
Long Boi
Veggie Boi Tall Boi
Doc

9. He give the big chomp.
Predators like allosaurus, a slightly smaller cousin of the tyrannosaurus .
Some scientists think that they had the ability to unhinge their jaw like a snake.
I told you they’d be back! Dilophosaurus was another predator during this time.
Unlike most creatures from the 1993 movie Jurassic Park, Dilophosaurus was actually larger .
BUT WAIT - There’s more.
Dilophosaurus in
Jurassic Park
(1993)
Dilophosaurus
based on
actual
fossils--->
He has a cough.
Are you
feeling it
now, Mr.
Krabs?

10. Dinosaurs of the Jurassic - In The Sky
Dinosaurs and not-so-dinosaurs ruled the skies during the
Jurassic period. Dinosaurs like Dimorphodon, a small
winged creature with a huge t-rex shaped head(seriously,
this thing was a mutant) played a dominant role. The
Jurassic was also the period where the first birds came
into known existence.
Archaeopteryx, a small feathered creature, is still argued
over today as to weather it was a bird or reptile, but it
may have been the ancestor to the giraffe sized.
screeeeeech
<---- Quetzalcoatlus
Giraffe ----->
Middle Aged Man ------------->
Archaeopteryx
Dimorphodon
To Birb or not to Birb...

11. One of the most well-known aquatic dinosaurs
of the Jurassic is the ichthyosaur. These
creatures were similar in appearance to
modern-day dolphins, with streamlined bodies
and long, pointed snouts. They were able to
swim quickly through the water using powerful
flippers, and their large eyes allowed them to
see well in low light conditions.
Dinosaurs of the Jurassic - In The Water
At that time shallow seas of North America and
Europe containing a large variety of marine
reptiles including dinosaurs.

12. Dinosaurs of the Jurassic - In The Water
Another group of aquatic dinosaurs that lived
during the Jurassic were the plesiosaurs. These
creatures had long necks and four flippers, and
they are often depicted in popular culture with
their heads sticking out of the water.
Finally, there were also several types of
crocodile-like dinosaurs that lived in the water
during the Jurassic period. These creatures,
known as crocodyliforms, had long, tooth-filled
jaws

13. Plant life alive during this time
Many plants started dominating early earth during the Jurassic period. There
were many gymnosperms, cycads, glossopteris, and cycadeoids. The
Jurassic period is also known as the “Age of Cycads”.

14. Source
s
https://www.enchantedlearning.com/subjects/dinosaurs/mesozoic/jurassic/
https://www.livescience.com/28739-jurassic-period.html
https://sciencing.com/climate-jurassic-era-4932.html
https://socratic.org/questions/what-was-the-atmosphere-during-the-jurassic-period
http://science.answers.com/Q/What_did_the_earth's_surface_look_like_in_the_jur
assic_time_period
https://www.reference.com/history/major-events-happened-during-jurassic-period-
c7e574a5727b0ce4

15. Thank you 😊