98 million years ago was in the Cretaceous period.
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.
The Devonian period lasted for approximately 60 million years, from about 419 million years ago to 359 million years ago.
The five mass extinctions that occurred in Earth's history took place during the Ordovician period (about 445 million years ago), the Devonian period (about 375 million years ago), the Permian period (about 251 million years ago), the Triassic period (about 200 million years ago), and the Cretaceous period (about 66 million years ago).
The Cretaceous Period ended about 66 million years ago.
470 million years ago was in the Ordovician Period (488.3 - 443.7 Ma).Phanerozoic Eon (542 Ma - Now)Paleozoic Era (542 - 251Ma)Ordovician Period (488.3 - 443.7Ma)Middle Ordovician Epoch (471.8 - 460.9Ma)Dapingian Age (471.8 - 468.1Ma)
The Devonian period lasted from 416 million years ago to 359.2 million years ago.
The Jurassic Period is defined as the period of time between 200 million years ago to 145 million years ago.
The Jurassic Period lasted from 199 million years ago to about 145 million years ago.
The Devonian period lasted from 416 million years ago to 359.2 million years ago.
The Precambrian period was from 4600 million years ago to about 542 million years ago.
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.
The Triassic period started 252.2 million years ago and ended 201.3 million years ago. It was the first period of the Mesozoic era.
The Ordovican period was in the Paleozoic era, and occurred between 488.3 million years ago and 443.7 million years ago.
The Devonian period lasted for approximately 60 million years, from about 419 million years ago to 359 million years ago.
208 to 144 million years ago
The compsognathus when extinct about 145 million years ago during the jerassic period
The pterosaurs flew during a time period staring about 220 million years ago and ending 65 million years ago.