Over the years, scientists have become more skilled in the art of discovering fossils, and knowing how long ago they actually were. Some fossils go all the way back into the Paleozoic era. Our time has been broken up into several eras, epochs, and periods. We use the geologic time scale to determine which era or time period comes first. The fossils that have been found in colder climates, such as Antarctica, have been looked up, and examined. Some geologists still have no clue, but the rest have a general idea of where they came from. Several millions and billions of years ago, all the continents were once together, in a form known as Pangea. Pangea contained all the land masses and held real life as well. All was well, until volcanic eruptions, and plates began to slip under the earth, causing the continents to break apart. The mammals, or living organisms on those land masses were know broken apart.
Those organisms could just have easily stayed on the continents, and died there, have the result of the fossils in the colder climate places. Another popular theory, is that the climates from back then could have been much different from what they are in contemporary times. The sun could have created much more warmth on those parts of the earth, and as time changed, they slowly became cold and dreary.
RSS Feed