Word: elso
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...Three months after Siegel's discovery, Harvard Paleontologist Elso S. Barghoorn reported that he had found 2-billion-year-old microfossils near Kakabeka Falls in western Ontario. Among them were a number of fossils that bore no resemblance to any living organism. One was an elaborate structure that Barghoorn named Kakabekia umbellata. When Siegel saw a photograph of Kakabekia, he exclaimed: "I've seen that thing before." Indeed, some specimens of Barghoorn's fossil and Siegel's living organism were remarkably similar. "When photographs of the two were compared," says Karen Roberts, one of Siegel...
...surprising first of all that anything was alive that far back," J. William Schopf, Junior Fellow, and co-discover of the fossil along with Elso S. Barghoorn, professor of Botany, said yesterday. "But more important was finding anything so complex as an apparently photosynthetic organism," Schopf added...
...itself farther and farther into the past. Last week Dartmouth Professor An drew McNair reported to the Geological Society of America that he had discovered the remains of advanced forms of life 120 million years older than any recognized before. As for simpler, one-celled organisms, Harvard's Elso S. Barghoorn told the society that he has found them to be a billion years older than anyone had previously suspected...
...Elso S. Barghoorn, Professor of Botany and curator of the paleobotanical collection at Harvard, has apparently pushed back the evolutionary clock a billion years...
...subjected to so much heat and pressure that all organic traces they once contained have been turned to shapeless specks of carbon. One notable exception is a hard, black, ancient rock found near Gunflint Lake in western Ontario, which somehow escaped this rough treatment. In the magazine Science, Paleontologist Elso S. Barg-hoorn-of Harvard and the late Geologist Stanley A. Tyler of the University of Wisconsin describe the remains of microscopic organisms that lived in that "Gunflint chert" - an impure silica -about 2 billion years ago, 1,800 million years before the earliest dinosaurs...