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.
Best Answer: The earliest record we have of a creature that looks like a modern human is only about 100,000 years old, which is just an eye blink in the history of life on Earth. Although life has been on this planet for around 3.8 billion years, humans have only been here for a tiny fraction of that time.