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The Jurassic Period of geologic time spanned from 206 to 144 million years ago. It was preceded by the Triassic Period and followed by the Cretaceous Period, all three comprising the Mesozoic Era.

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What are the three era’s in the Phanerozoic eon?

mesozoic


What eon did they exist?

The dinosaurs existed during the Mesozoic Era within the Phanerozoic Eon.


What are the three era's in phanerozoic eon?

The three eras in the Phanerozoic eon are the Paleozoic era, Mesozoic era, and Cenozoic era. These eras represent distinct periods in Earth's history with unique biological and geological developments. The Phanerozoic eon spans from approximately 541 million years ago to the present day.


What eon did the allosaurus live in?

Eon: Phanerozoic Era: Mesozoic Period: Late Jurassic to Early Cretaceous Time range: 155 to 140 million years ago


What eon did the ammosaurus live in?

The eon it lived in is the Phanerozoic, but I really don't believe that's what you're asking. It lived in the early Jurassic period of the Mesozoic era.


Is paleozoic the second era?

No, the Paleozoic era is the first of three eras in the Phanerozoic eon. It spans from around 541 million years ago to 252 million years ago. The following era is the Mesozoic era, which is the second era in the Phanerozoic eon.


What eon period and era the kentrosaurus?

The Kentrosaurus lived during the Late Jurassic period, specifically in the Kimmeridgian to Tithonian stages, which is part of the Mesozoic era.


Cenozoic paleozoic and mesozoic are examples of what?

Cenozoic, Paleozoic, and Mesozoic are examples of geological eras that represent distinct time periods in Earth's history. They help classify and organize the vast timeline of Earth's evolutionary and climatic changes. Each era is characterized by specific events, such as the rise of mammals in the Cenozoic era or the dominance of dinosaurs in the Mesozoic era.


How is the phanerozoic eon divided?

The Phanerozoic eon is divided into three eras: Paleozoic, Mesozoic, and Cenozoic. Each era is further subdivided into periods, such as the Cambrian, Jurassic, and Quaternary, based on significant geological and biological events.


How many eras are in Phanerozoic?

There have been 3 eras in the Phanerozoic Eon.The Paleozoic Era (542 - 251Ma)The Mesozoic Era (251 - 65Ma)The Cenozoic Era (65Ma - Now)


What are the phanerozoic periods in order?

The Phanerozoic Eon is divided into three major eras: the Paleozoic Era, the Mesozoic Era, and the Cenozoic Era. The Paleozoic Era is further divided into six periods: Cambrian, Ordovician, Silurian, Devonian, Carboniferous, and Permian. The Mesozoic Era is divided into three periods: Triassic, Jurassic, and Cretaceous. The Cenozoic Era is divided into two periods: Paleogene and Neogene.


What is the era before the Mesozoic Era?

The Paleozoic era was from 540 million years ago to about 245 million years ago. After that came the Mesozoic era, and that lasted from the end of the Paleozoic to 65 million years ago, when the earth entered the Cenozoic era.