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The Ordovician lasted for 47 million years from 490 to 443 Million Years Ago.
The Carboniferous is considered to have started 354 million years ago and ended 290 million years ago.
Pangaea formed about 300 million years ago and began to rift about 200 million years ago.The formation and falling apart of super continents appears to be cyclical. Pangaea is the fourth super continent in Earth's history.Known super continents:Columbia (2 billion years to 1.8 billion years ago)Rodinia (1.1 billion years ago to 750 million years ago)Pannotia (600 million years ago to 540 million years ago)Pangea (300 million years ago to 200 million years ago)
The present ice age began about 2.6 million years ago and it has not ended yet. We are in a warm period within an ice age. The last glaciation started about 110,000 years ago and ended about 10,000 years ago.
Pangaea existed approximately 335 million years ago and began breaking apart around 175 million years ago during the Mesozoic era.
For about 165 million years.
160-165 million years ago
the Appalachian mountains were formed about 165 million years ago
I think they lived (the dinosaurs) for approximately 165 million years.
Dinosaurs first appeared about 230 millions years ago and they went extinct about 65 million years ago. Therefore the time of the dinosaurs was about 165 million years.
Dinosaurs existed from 231 million to 65 million years ago. So, yes, dinosaurs existed for 166 million years.
There was no years 85 million years ago. Man made up the idea of years, dates, or time. The dinosaur existed 65 million years ago.
The Mesozoic Period (251 - 65 million years ago) lasted approximately 216 million years. It consisted of the Triassic Period (251 - 200 million years ago), the Jurassic Period (199-146 million years ago) and the Cretaceous Period (145 - 65 million years ago).
There was no years 85 million years ago. Man made up the idea of years, dates, or time. The dinosaur existed 65 million years ago.
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Well, for starters, dinosaurs first came to the earth around 280 million years ago, they were wiped of the face of the earth around 65 million years ago. Technically speaking, they have lived for a total of 215 million yeas ago.
The dinosaurs commonly referred to as "raptors" were in a family known as dromaeosaurids. These dinosaurs first appeared about 165 million years ago and died out 65.5 million years ago along with the rest of the non-avian dinosaurs. Velociraptor, the dinosaur which popularized the term "raptor" for this family lived from 75 million to 71 million years ago.