Dinosaurs of the Triassic period of the Mesozoic Era

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Dinosaur Jungle   >   Dinosaur Facts   >   Timeline   >   Triassic Period

Triassic Period



The Triassic period was the first of three periods in the Mesozoic Era (the others being the Jurassic period and the Cretaceous period), and occured between 248 million and 213 million years ago.

It was during the Triassic period that archosaurs ("ruling reptiles"), including dinosaurs, crocodiles, and Pterosaurs first evolved. Prior to the Triassic, during the previous Permian era, mammal-like reptiles had been the dominant land animals. Some survived into the Triassic, but they dramatically declined, apparently out-competed by the dinosaurs. The mammal-like reptiles did however give rise to the first mammals, these being tiny mouse-sized animals. The dominant plants during the Triassic period were conifers, ferns, ginkgos and horsetails.

The late Triassic period

The World in the Triassic
Here is a map of the world during the early Triassic (about 225 million years ago). At this time, all the continents were combined into one massive super-continent, known as Pangaea:

The different geography of the world also led to a different climate. On the whole, the Triassic was generally hot and dry, and there was no glaciation or ice caps at the poles (polar regions were moist and temperate). The interior of Pangaea would have had a highly seasonal continental climate, with very hot summers and cold winters.


Triassic Dinosaurs



Here are some of the types of dinosaurs that lived during the Triassic period:

Timeline:

 
Coelophysis was a carnivore (meat-eater) that lived from 225 to 220 million years ago
Coelophysis 
Coelophysis was a carnivore (meat-eater) that lived from 225 to 220 million years ago
Cryolophosaurus was a carnivore (meat-eater) that lived from 196 to 1960 million years ago
Cryolophosaurus 
Cryolophosaurus was a carnivore (meat-eater) that lived from 196 to 1960 million years ago
Herrerasaurus was a carnivore (meat-eater) that lived about 228 million years ago
Herrerasaurus 
Herrerasaurus was a carnivore (meat-eater) that lived about 228 million years ago
Melanorosaurus was a herbivore (plant-eater) that lived from 227 to 221 million years ago
Melanorosaurus 
Melanorosaurus was a herbivore (plant-eater) that lived from 227 to 221 million years ago
 
Mussaurus was a herbivore (plant-eater) that lived about 215 million years ago
Mussaurus 
Mussaurus was a herbivore (plant-eater) that lived about 215 million years ago
Pisanosaurus was a herbivore (plant-eater) that lived from 228 to 216 million years ago
Pisanosaurus 
Pisanosaurus was a herbivore (plant-eater) that lived from 228 to 216 million years ago
Plateosaurus was a herbivore (plant-eater) that lived from 222 to 218 million years ago
Plateosaurus 
Plateosaurus was a herbivore (plant-eater) that lived from 222 to 218 million years ago
Riojasaurus was a herbivore (plant-eater) that lived from 225 to 219 million years ago
Riojasaurus 
Riojasaurus was a herbivore (plant-eater) that lived from 225 to 219 million years ago
 
Saltopus was a carnivore (meat-eater) that lived from 225 to 222 million years ago
Saltopus 
Saltopus was a carnivore (meat-eater) that lived from 225 to 222 million years ago
Staurikosaurus was a carnivore (meat-eater) that lived about 225 million years ago
Staurikosaurus 
Staurikosaurus was a carnivore (meat-eater) that lived about 225 million years ago
Unaysaurus was a herbivore (plant-eater) that lived about 225 million years ago
Unaysaurus 
Unaysaurus was a herbivore (plant-eater) that lived about 225 million years ago
 
 


Related Information & Resources


See Also

Books about the Triassic Period


Here are some books from Amazon.com:

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Triassic Life on Land: The Great Transition (The Critical Moments and Perspectives in Earth History and Paleobiology)
By Hans-Dieter Sues

Columbia University Press
Released: 2010-04-28
Kindle Edition (224 pages)

Triassic Life on Land: The Great Transition (The Critical Moments and Perspectives in Earth History and Paleobiology)
 
Product Description:

The Triassic period is generally viewed as the beginning of the Age of Dinosaurs. For paleontologists, however, it also marks the rise of the world's first modern land ecosystems.

Over the past three decades, extensive, worldwide fieldwork has led to the discovery of many new species of Triassic animals and plants, suggesting that faunal and floral changes already began in the Middle Triassic and were more protracted than previously thought. The Late Triassic is a pivotal time in the evolution of life on land, with many of the major groups of present-day vertebrates and insects first appearing in the fossil record. This book provides the first detailed overview of life on land during the Triassic period for advanced students and researchers. Noted vertebrate paleontologists Hans-Dieter Sues and Nicholas C. Fraser also review the biotic changes of this period and their possible causes.

Dawn of the Dinosaurs: Life in the Triassic (Life of the Past)
By Nicholas Fraser

Indiana University Press
Released: 2006-10-26
Hardcover (328 pages)

Dawn of the Dinosaurs: Life in the Triassic (Life of the Past)
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Product Description:

Before the Age of Dinosaurs there was an age in Earth’s history known as the Triassic. It was a world of truly fantastic creatures, a genetic stew of the ancient and the modern. During this time the Earth took its first steps toward the creation of modern terrestrial ecosystems. This incredibly exciting period is brought vividly to life in the words of paleontologist Nicholas Fraser and the consummate artistry of Douglas Henderson. Together they have created a book in which the riches of Triassic life are presented with clarity, scientific accuracy, and imaginative recreation. Every lover of the life of the past will treasure Dawn of the Dinosaurs.

Dinosaurs: Triassic, Jurassic, Cretaceous & Bird Dinosaurs (Dinosaur 4-Pack Picture Books (Vols 1-4) Book 1)
By Explore Series

Released: 2014-01-02
Kindle Edition (197 pages)

Dinosaurs: Triassic, Jurassic, Cretaceous &  Bird Dinosaurs (Dinosaur 4-Pack Picture Books (Vols 1-4) Book 1)
 
Product Description:
SAVE $ 3.00 with this SPECIAL BOOK SET - Great for Children Who Love Dinosaurs!
This 4-pack includes each of the best-selling Dinosaur books from the Explore Series.

With over 170 colorful images, these books include dinosaurs from each of these prehistoric periods: Jurassic, Cretaceous, and Triassic plus a BONUS book on the popular Bird Dinosaurs (also called Feathered Dinosaurs).

Each dinosaur book includes a colorful image and is full of interesting, fun facts about dinosaurs from each period. If you don't own a Kindle Fire yet, don't worry. The images look amazing in color, but also display well on the classic black and white screen.

With the neverending popularity of dinosaurs in cartoons, toys and Disney movies, dinosaurs are not just for people interested in fossils anymore. Although Jurassic Park is the most obvious example, especially when it comes to the T-Rex, the popularity of dinosaurs has exploded in recent years. Strangely enough, the T-Rex is not even from the Jurassic period; it's from the Cretaceous era.  Who knew?

They are fun for children and educational at the same time. A perfect learning tool.

Although each of these books is available as a separate book, it makes sense to get all four at once and receive the great sale price when you buy them for your young dinosaur fan. Children love them!

Included are:
Dinosaur of the Triassic Period
Dinosaur of the Jurassic Period
Dinosaur of the Cretaceous Period
Bird Dinosaurs (Feathered Dinosaurs)

SAVE $ 3.00 with this SPECIAL BOOK SET - Great for Children Who Love Dinosaurs!
The Triassic Period
Sanjit sen
Released: 2014-07-29
Kindle Edition (310 pages)

The Triassic Period
 
Product Description:
Timeline and Duration :
Let's begin with when it all
started. The Triassic Period was
preceded by the Permian Period
and succeeded by the Jurassic
Period. It was the first geologic
period of the Mesozoic Era and it
is divided into three epochs (tens
of millions of years). Each of these
epochs are further subdivided into
various stages, spanning over a
particular period of time.
Therefore, we can say that the
Triassic Period lasted between
approximately 250 million years
ago to 200 million years ago,

What Happened in the Triassic
Period?
The Triassic Period was an
evolutionary extravaganza and full
of transitions - both progressive as
well as regressive. While, on one
hand a large number of species
walked the Earth and swam the
seas, the mass extinction during
the later years wiped out much of
it , making this period the cradle
of oblivion for the most number of
extinct animals. The oceans and
marine life forms faced this heat
the most. There is considerable
debate surrounding the exact
reason behind such a large-scale
extinction. Around the same time
when these extinctions occurred, a
huge volcanic eruption is believed
to have taken place and many
believe this to be a reason. This
eruption caused many parts to
break off from the unified
continental landmass, and drift
away as separate landmasses.

This coincided with a global
cooling of the Earth and a
significant bolide impact caused
by a meteorite entering the Earth's
atmosphere. It is believed that
these occurrences were collectively
responsible for the sudden
extinction of many prehistoric life
forms from the Earth. Those
creatures who were ill-suited to
these sudden environmental
developments and failed to adapt
to these changes, became extinct.

That was a brief account of the
events and going-ons of this
prehistoric period. It's all a part
and parcel of the evolutionary
machinery and this thought has
been very aptly put to the pen by
Stephen J. Gould when he said:

If one small and odd lineage of
fish had not evolved fins capable of
bearing weight on land (though
evolved for different reasons in
lakes and seas,) terrestrial
vertebrates would never have
arisen. If a large extraterrestrial
object-the ultimate random bolt
from the blue-had not triggered
the extinction of dinosaurs 65
million years ago, mammals would
still be small creatures, confined to
the nooks and crannies of a
dinosaur's world, and incapable of
evolving the larger size and brains
big enough for self-consciousness
require. If a small and tenuous
population of protohumans had
not survived a hundred slings and
arrows of outrageous fortune (and
potential extinction) on the
savannas of Africa, then Homo
sapiens would never have emerged
to spread throughout the globe.
We are glorious accidents of an
unpredictable process with no
drive to complexity, not the
expected results of evolutionary
principles that yearn to produce a
creature capable of understanding
the mode of its own necessary
construction.
Dawn of the Dinosaur Age: The Late Triassic & Early Jurassic Epochs: The Late Triassic and Early Jurassic Periods (The Prehistoric Earth)
By Thom Holmes

Chelsea House Pub
Released: 2008-09-01
Kindle Edition (159 pages)

Dawn of the Dinosaur Age: The Late Triassic & Early Jurassic Epochs: The Late Triassic and Early Jurassic Periods (The Prehistoric Earth)
 
Product Description:
Each title in this comprehensive reference series highlights fundamental principles of scientific inquiry and provides insight into dinosaurs and other fascinating prehistoric creatures, including mammals, birds, flying reptiles, ocean life, and human ancestors.
Encyclopedia of Dinosaurs: Triassic, Jurassic and Cretaceous Periods
By Publishing House My Ebook

Ingramcontent
Paperback (116 pages)

Encyclopedia of Dinosaurs: Triassic, Jurassic and Cretaceous Periods
List Price: $10.99*
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  • Encyclopedia of Dinosaurs Triassic Jurassic and Cretaceous Periods
Product Description:

Encyclopedia of Dinosaurs will spark the curiosity of young readers, taking them to a time where Tyrannosaurus rex ruled the land, pterodactyls flew in the skies, and packs of velociraptors prowled the jungles. Filled with up-to-date discoveries about prehistoric life, this tome includes comprehensive material about geography, history, and other scientific information from prehistoric times.
Here is everything young readers want to know about dinosaurs and their world--in one magnificently illustrated, up-to-date family reference.
Profiles all known dinosaurs and prehistoric creatures, from the Triassic, Jurassic and Cretaceous eras and beyond. Each main entry has a highly detailed and technically accurate illustration.

Travel to the Triassic Era (Clever Storytime)
By Anastasiya Galkina

Clever Publishing
Released: 2019-10-08
Hardcover (48 pages)

Travel to the Triassic Era (Clever Storytime)
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Product Description:
Discover the land of dinosaurs! After uncovering a magical book, a brother and sister duo are whisked away, soon finding themselves walking among the dinosaurs. This fantastical story introduces early readers to a variety of dinosaurs in the most entertaining way. Children will be swept away on this prehistoric adventure as they explore these colorful pages. A glossary at the end of the story provides fascinating facts about favorite dinosaurs that roamed the earth during the Triassic Era.

Travel to the Triassic Era is a wonderful companion book, featuring different dinosaurs and facts. Add them both to your child's home library!
Dinosaurs of the Upper Triassic and the Lower Jurassic: 25 Dinosaurs from 235--176 Million Years Ago (The Firefly Dinosaur Series)
By David West

Firefly Books
Hardcover (32 pages)

Dinosaurs of the Upper Triassic and the Lower Jurassic: 25 Dinosaurs from 235--176 Million Years Ago (The Firefly Dinosaur Series)
List Price: $16.95*
Lowest New Price: $11.81*
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Product Description:

Praise for Dinosaurs on My Street by David West:

"The illustrations are center stage... plenty of strong appeal for dinosaur buffs."
-- School Library Journal

Titles in the Firefly Dinosaur series:

Dinosaurs of the Upper Triassic and the Lower Jurassic: 25 Dinosaurs from 235--176 Million Years Ago
Dinosaurs of the Middle Jurassic: 25 Dinosaurs from 175--165 Million Years Ago
Dinosaurs of the Upper Jurassic: 25 Dinosaurs from 164--145 Million Years Ago
Dinosaurs of the Lower Cretaceous: 25 Dinosaurs from 144--127 Million Years Ago
Dinosaurs of the Mid-Cretaceous: 25 Dinosaurs from 127--90 Million Years Ago
Dinosaurs of the Upper Cretaceous: 25 Dinosaurs from 89--65 Million Years Ago

This series of six books is for dinosaur enthusiasts and novices alike. It covers dinosaurs living in the six periods that make up the Mesozoic Age, which spanned prehistoric time 227 million years ago to 65 million years ago.

Each book is an illustrated guide to 25 of the best known dinosaurs of that period. Up-to-date information accompanies the highly detailed computer-generated artworks -- big, colorful, lifelike, fill-the-page dinosaurs.

The books open with an illustrated introductory spread that provides background information on the time period in which the 25 dinosaurs lived. The dinosaur spreads bear a brief introduction, information on when and where it lived, its size, and where fossil remains have been found. They also have a shadow icon of an adult, child, or animal (e.g. domestic cat) which indicates the size of the dinosaur.

All dinosaur-loving readers will thrill at the giant and engaging dino artworks. These books are sure to be enjoyed over and over again.

When Dinos Dawned, Mammals Got Munched, and Pterosaurs Took Flight: A Cartoon PreHistory of Life in the Triassic (National Geographic Kids)
By Hannah Bonner

National Geographic Children's Books
Released: 2012-04-10
Hardcover (48 pages)

When Dinos Dawned, Mammals Got Munched, and Pterosaurs Took Flight: A Cartoon PreHistory of Life in the Triassic (National Geographic Kids)
List Price: $17.95*
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Product Description:
In the style of WHEN BUGS WERE BIG and WHEN FISH GOT FEET this book discusses all the exciting developments of the Triassic Age, from the recovery of the planet from the most deadly mass extinction ever, to the first appearance of the dinosaurs. We also get to meet the first mammals, the first pterosaurs (flying reptiles), the first frogs, a host of predatory marine reptiles, early turtles, and the first coral reefs.  With the books' signature blend of humor and clearly presented information, cartoon illustrations help keep the fact-filled material extra fun.

National Geographic supports K-12 educators with ELA Common Core Resources.
Visit www.natgeoed.org/commoncore for more information.
Mesozoic Sea Dragons: Triassic Marine Life from the Ancient Tropical Lagoon of Monte San Giorgio (Life of the Past)
By Olivier Rieppel

Indiana University Press
Released: 2019-05-01
Hardcover (256 pages)

Mesozoic Sea Dragons: Triassic Marine Life from the Ancient Tropical Lagoon of Monte San Giorgio (Life of the Past)
List Price: $75.00*
Lowest New Price: $66.61*
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Product Description:

Told in rich detail and with gorgeous color recreations, this is the story of marine life in the age before the dinosaurs. During the Middle Triassic Period (247–237 million years ago), the mountain of Monte San Giorgio in Switzerland was a tropical lagoon. Today, it is a UNESCO World Heritage Site because it boasts an astonishing fossil record of marine life from that time. Attracted to an incredibly diverse and well-preserved set of fossils, Swiss and Italian paleontologists have been excavating the mountain since 1850.


Synthesizing and interpreting over a century of discoveries through a critical twenty-first century lens, paleontologist Olivier Rieppel tells for the first time the complete story of the fish and marine reptiles who made that long-ago lagoon their home. Through careful analysis and vividly rendered recreations, he offers memorable glimpses of not only what Thalattosaurs, Protorosaurs, Ichthyosaurs, Pachypleurosaurs, and other marine life looked like but how they moved and lived in the lagoon.


An invaluable resource for specialists and accessible to all, this book is essential to all who are fascinated with ancient marine life.



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