Ice age
Cenozoic
The supercontinent that began to break apart about 225 million years ago was Pangaea.
65 million years
The Ethiopian highlands began to rise about 75 million years ago.
Pangaea existed approximately 335 million years ago and began breaking apart around 175 million years ago during the Mesozoic era.
The Tertiary Period began roughly 65 million years ago following the mass extinction event that ended the Cretaceous Period. It ended about 2.6 million years ago, marking the beginning of the Quaternary Period.
how many years ago was feudalism introduced if began about 800 ce
The answer is 63.2 million years. Since the Tertiary Period began 65 million years ago and then stoped 1.8 million years ago you have to subtract the 1.8 million from 65 million to get the actual lenght of time.
Pangaea
Paleozoic, Mesozoic, and Cenozoic refer to periods in Earth's history. The Paleozoic era began 542 million years ago and ended 251 million years ago. The Mesozoic era is the age of dinosaurs and was from 245 to 66 million years ago. The Cenozoic period began 65 million years ago and continues today.
It formed approximately 300 million years ago and then began to break apart after about 100 million years. So, to answer your question; about 200 million years ago.
The Paleozoic era began about 543 million years ago. It came after the Precambrian era and before the Mesozoic era.