Word: dinosaurs
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...ancient seagoing crocodile and a 140 million-year-old fish so well preserved that its scales are still clearly visible. Now, in the course of routine stonecutting, a quarry owner named Louis Ghirardi has turned up an even more important prize: a superbly preserved fossil of a birdlike dinosaur, one of the smallest ever unearthed...
...lines to keep them running. One by one, private companies fell into public hands: Detroit (1922), New York City (1932, 1940), Cleveland (1942), Chicago and Boston (1947). After Atlanta went public last March, D.C. Transit was the outstanding survivor of this particular breed of dinosaur. With its passing, the largest privately owned city system is Rapid Transit Lines, Inc., whose 400 buses serve central Houston...
...largest was found by Brigham Young University's James A. Jensen,* a tall (6 ft. 3 in.), lanky scientist known as "Dinosaur Jim," who worked as a taxidermist, welder, carpenter and longshoreman before turning to paleontology. Last year, on a tip from two amateur rock collectors, Jensen began exploring what was once a prehistoric riverbed near the little farming and lumber town of Delta in western Colorado. By spring he had unearthed a trove of bones that included the remnants of a large carnivorous dinosaur, three prehistoric turtles, parts of ancient crocodiles and small, chicken-sized flying reptiles...
...giant beast resembles the Brachiosaurus, a huge herbivorous dinosaur that prowled the earth from some 165 million to 100 million years ago. But Jensen thinks that the bones are sufficiently different to indicate that they belong to an entirely new species. As yet, Jensen's discovery has not been confirmed by other specialists, but he thinks that he can provide even more persuasive evidence. By probing further in the Colorado quarry-"a paleontologist's paradise," he says-Jensen hopes eventually to recover enough bones to reconstruct the entire skeleton of the prehistoric monster...
...Heinrich K. Erben of Bonn University's Institute of Paleontology bases his theory on a treasure trove of dinosaur eggs unearthed near Aix-en-Provence in Southern France. So many fossilized egg fragments were found there that Erben concluded that dinosaurs had used the site as a regular nesting place for thousands of years. Using a scanning electron microscope, he determined that the average thickness of the eggshells in the lower or older layers ranged from 1.7 to 2.6 mm., while the shells in the younger layers were only about half as thick. Such fragile eggs could easily become...