The era from 418 to 355 million years ago was the Paleozoic Era that existed during the Middle of the Silurian Period and at the end of the Devonian Period. Jawed fish, Arachnids, Eurypterids, Land Plants, Devonian Forests, Sharks, Lung Fish, and Bony Fish were present during this time frame.
That time frame is part of the Paleozoic era which stretched from 542 to 251 million years ago and covers part of the Carboniferous (359 - 299 million years ago) and the Devonian period (416 to 359 million years ago).
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No, the most recent glaciation ended gradually between 10,000 and 6,000 years ago, but this was only one of many glaciations which occurred during the present ice age which started over 2.5 million years ago.
It moved westward in a shape of a curve.
Pangaea was present during the late Paleozoic and early Mesozoic eras. Its formation is dated to about 300 million years ago and its breakup began about 100 million years ago. The break-up of Pangaea is thought to have occurred in three phases, with the first beginning in the Early-Middle Jurassic Age. The second phase began in the Early Cretaceous Period and the third during the Early Cenozoic Period.
It is believed that the oldest mountain range is the Appalachians. They formed during the Ordovician Period which occurred about 480 million years ago. The Appalachians run for 1,500 miles and the highest peak is 6.684 feet.
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The shape of the Canadian Shield was cause by glaciers and ice sheets during the many glaciations which have occurred during the last 2.6 million years of the present ice age.
The 'Age of Reptiles' occurred during the Mesozoic Era. The Mesozoic Era occurred from 252.17 to 66 million years ago and holds the Cretaceous, Jurassic, and Triassic periods.
About 25.4 Million Military Deaths occurred during World War 2, This is about 34-35% of the Total deaths which occurred during World War 2.
Yes, although mutations are rare, they are still present today meaning that they were also present during the 20th century.
The murder of entire populations (genocide) that occurred during Hitler's rule of Germany is called the Holocaust; six million Jews were persecuted and murdered by Hitler and his Nazi regime as were five million Non-Jews.
Their family camps during the summer is in the present tense. This is because it is an ongoing activity and it happens regularly, so the present tense is used to describe it.
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This is a first hand account. The writer was there during the action so can present a unique point of view.
3.1 Million POW deaths occurred in Nazi Captivity. Whereas, around 2.8 Million died in soviet captivity. That's about 6 million in total.