How far deep they were dug up shows us what time period they came from so we can classify what dinosaur it is
The imaginary line that divides the earth into in this case the north and south hemispheres is called the Equator and it passes through Ecuador and actually Ecuador is the Spanish word for Equator. The French explorer La Condamine spent 10 years in Ecuador studying the equator and determined the oblate spheroid shape of the world.
Yes it developed but am not really sure what you mean