American paleontologist Neil Shubin's 2008 so-called "first life" diagram, from his Your Inner Fish, a point in time which he situates at 3.5 billion years ago. [1]
In science, first life, sometimes referred to as "origin of life" (or protoplasm), is a conceptualized hypothetical point in time, in the now-defuncttheory of life (see: defunct theory of life), said to have occurred 3.5 to 3.85 billion years ago, based on isotope dating of fossilized bacteria, wherein "life" is said to have began or emerged, on or near the surface of the earth, following about one billion years of earth daily axis rotation and yearly rotation around the sun, wherein a period of no-life existence conceptually occurred, after the point at which the sun ignited, releasing photons, 4.6 billion years ago, according to the nebular hypothesis, and the earth formed in rotation, shortly thereafter.
Overview The following is a “first life” diagram, from American anesthesiologist Stuart Hameroff’s 1998 chapter “Did Consciousness Cause the Cambrian Evolutionary Explosion?”, artwork by Dave Cantrell and Cindi Laukes, based on organisms in Gould (1989) and adapted from a diagram by Joe Lertola, Time Magazine, December 4, 1995, subtitled with the generic "according to fossil records life on earth originated about 4 billion years ago" assertion, per citation of Lynn Margulis (1995), and consciousness "emerged" 200 million years ago, per citation of John Eccles (1992): [3]
In 2008, American paleontologist Neil Shubin, in his Your Inner Fish, gave the adjacent “first life” diagram, with a first life arrow pointing to about 3.5 billion years ago, following which he later states that human lineage continues back to “3.8-billion-year-old pond scum, and beyond?” [1]
In 2008, American geologists Joseph Graham, William Newman, and John Stacy published the following diagram positioning the origin of organic structures spiral diagram, stating that “buried within rocks are the remains of life—the plants and animals that evolved from organic structures that existed 3 billion years ago”: [2]
References 1. Shubin, Neil. (2008). Your Inner Fish: a Journey into the 3.5-Billion-Year History of the Human Body (first life, pg. 121; pond scum, pg. 178). Random House. 2. Graham, Joseph, Newman, William and Stacy, John. (2008). “The Geologic Time Spiral” (Ѻ) (Ѻ), USGS.gov. 3. (a) Hamermoff, Stuart R. (1998). “Did Consciousness Cause the Cambrian Evolutionary Explosion?”, in: Toward a Science of Consciousness II (§37:421-37) (Ѻ). MIT Press. (b) Margulis, Lynn and Sagan, Dorion. (1995). What is Life? University of California Press. (c) Eccles, John C. (1992). “Evolution and Consciousness”, Proceedings of the National Academy of Science, USA, 89(16):7320-24.
Further reading ● Dreamer, David. (2011). First Life: Discovering the Connections between Stars, Cells, and How Life Began (emerge, pg. 2). University of California Press.
