Dinosaurs Timeline

dinosaurs TIMELINE

World

Geology

Environment & Organisms

Major Geological Events

time

trivia

Biology

Duration and classification

Fun Facts!

Major Biological Events

I am historically accurate!

When?

Long Time Ago!

The Permian Period takes place between 298.9 and 252.2 million years ago (Britannica, "Permian Period"). It is the last Period in the Paleozoic Era during the Phanerozoic Eon. It is also further divided into the Cisuralian, Guadalupian, and Lopingian Epochs, which are then further divided into the Ages shown in the image (EnergyEducation).

Who?

Not Dinosaurs!

Increadible diversity of terrestrial plant due to the enormous land mass of Pangea. Rapid evolution of insects following the new plant-ruled ecosystem. Additionally, first appearance of many reptile lines, including that which lead to the rise of mammals later on (Britannica). However, it is important to note that these reptiles were not dinosaurs. They were merely their ancestors! The Permian period ended with the greatest mass extinction of all time, estimated to have killed off more than half of all taxonomic families

That's me!

How?

Expect Low and High Temperatures!

Throughout the beginning of the Permian Period, the climate was colder with widespread glaciation, As time went on, the climate warmed to great extents, even causing a crisis in Permian marine and terrestrial life. (Britannica "Permian Period")

• Single, massive continent known as Pangea
• Resulting gigantic ocean known as Panthalassic Ocean

What?

Rocks! That's what!

The biggest geological event during this period was the formation of the single continent Pangea. Rocks from the Permian period can still be found in all present-day continents. Although many have been moved due to erosion and tectonic movement during the following periods.

Terrestrial life was also abundant in the enourmous land mass of Pangea. Many species of fungi, and arthropods, and verious types of tetrapods were found. Additionally, the amniote synapids (which later would include mammals) thrived in this environment. The dimetrodon is a member of this family! The flora during this period was also abundant with four major floristic provinces being recognized. Those are the Angaran, Euramerican, Gondwanan, and Cathaysian.

Terrestrial

The Panthalassa Ocean was the perfect location for the marine species during the Permian Period to evolve. Fossils found of this period show the sea life filled with mollusks, brachiopods, and echinoderms. During this time, brachiopods were very diverse with the most predominant order being the Productida. Many ammonoids and trilobite were also common. This diversity mainly declined during the end of the Permian period.

Marine

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