The desperate search for oil drove capitalists to take a hard look at the pulverized rocks drawn up from both dry and successful holes. It was the only emperical evidence they had. They found these cores to be filled with Foraminifera. There are some 4,000 species of these single celled aquatic creatures in today’s oceans, from the surface to the bottom mud, from the artic to the tropics. But the fossils of 275,000 Foraminifera species were coming out of the drill holes.
Obviously the vast majority of these little creatures and plants had gone extint. By studying what fossils were found with the oil in past well cores, the capitalists could better judge their chances of finding oil in any new drilling hole. Eventually, oilmen could depend on Foraminifera fossil species to lead them toward the oil.
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