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.
Earliest life on Earth: scientists find evidence in WA rock sediments. Evidence of what could be the earliest forms of life on Earth has been unearthed in the remote Pilbara region of Western Australia. Researchers from Australia and the US have discovered signs of âcomplex microbial ecosystemsâ within rock sediments dated at 3.5bn years old.