The Gulf of Mexico basin was created by an episode of crustal extension and sea-floor spreading during the Mesozoic breakup of Pangea (Salvador, 1987; Sawyer et al., 1991; Buffler and Thomas, 1994; Harry and Londono, 2004; Jacques and Clegg, 2002).
Title: Life Before Earth. Abstract: An extrapolation of the genetic complexity of organisms to earlier times suggests that life began before the Earth was formed. Life may have started from systems with single heritable elements that are functionally equivalent to a nucleotide.
Earth is the third planet from the Sun and it is the only planet known to have life on it. The Earth formed around 4.5 billion years ago.It is one of four rocky planets on the inside of the Solar System.arth is the third planet from the Sun and it is the only planet known to have life on it. The Earth formed around 4.5 billion years ago.