Yellow gemstones meaning is enlightening, wisdom, Cheeriness, joy, action, optimism, happiness, idealism, summer, hope, imagination, sunshine, philosophy, youth. The color yellow also symbolizes the sun. For those born in the month of November, Yellow is the color of their birthstones as yellow Topaz and Citrine.
The Cretaceous Period (146-65 million years ago). In the early Cretaceous, many of the southern continents were still joined together as part of the southern landmass called Gondwana.Northern continents formed the great landmass Laurasia. Australia was joined to Antarctica, New Zealand and South America, forming the last remnant of the great southern landmass called Gondwana. 2  About 80 million years ago New Zealand drifted away from the rest of Gondwana. 3  The Australian part of Gondwana was located close to the South Pole.
The theory of Pangea is that millions of years ago all the continents were joined together in one enormous land mass known as Pangea. Then for a reason that is still not known for sure, the continents broke apart and began to drift in opposite directions.The theory goes on to say that the continents will continue to drift until they meet again, in a different configuration.y the end of the Cretaceous period, the continents were separating into land masses that look like our modern-day continents. An Austrian geologist stated that there had been once a land bridge connecting South America, Africa, India, Australia, and Antarctica.