Word: permian
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Dates: during 1930-1939
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...Having reached their heights in the Ordovician, the Trilobites began to waste their substance in riotous living. Before the close of the Permian, the last Trilobite had been banished from the face of the earth. The Trilobites probably arose from segmented worms in the Pre-Cambrian...
...scrutinizing the Permian, and the immediately following Triassic, periods, the Harvard Paleontologists are dealing with the origins of the Mesozoic era, or the 100,000,000-year "reign" of the great reptiles. Developed from hardier amphibans, the Permian and Triassic reptiles were the first forms of life able to live and to rear their young outside the water. For millions of years the descendants of these pioneer land forms ruled the earth, taking final form in some cases as the giant dinosaurs. Then the reptile domain abruptly ended, and when the fossil story resumes, after a long lapse...
Texas. One hundred million years old were the dinosaur eggs found in the Gobi Desert by Roy Chapman Andrews. They were the earliest eggs known to Science until the return of Harvard's latest expedition from the Permian Red Beds of north central Texas. From that ancient ground Diggers Theodore White and Llewellyn Price plucked a rust-colored fossil egg, three inches long, which they estimated to be 225,000,000 years old. All evidence indicated that the egg was laid by Ophiacodon, a six-foot reptile with ponderous head and meagre limbs. Last week Harvard announced that the world...
...Columbia in 1921. During his service as instructor of Anatomy at Columbia and as a member of the department of Comparative Anatomy at the Natural History Museum, associate professor and professor of Vertebrate Paleontology at the University of Chicago, he became an authority on reptiles and amphibians of the Permian period. He published two books in 1933 on the subject...