IN THE SUMMER of 1971, a young geologist named Mike Voorhies was scouting around onsome grassy farmland in eastern Nebraska, not far from the little town of Orchard, where hehad grown up. Passing through a steep-sided gully, he spotted a curious glint in the brushabove and clambered up to have a look. What he had seen was the perfectly preserved skull ofa young rhinoceros, which had been washed out by recent heavy rains.

A few yards beyond, it turned out, was one of the most extraordinary fossil beds everdiscovered in North America, a dried-up water hole that had served as a mass grave for scoresof animals—rhinoceroses, zebra-like horses, saber-toothed deer, camels, turtles. All had diedfrom some mysterious cataclysm just under twelve million years ago in the time known togeology as the Miocene. In those days Nebraska stood on a vast, hot plain very like theSerengeti of Africa today. The animals had been found buried under volcanic ash up to tenfeet deep. The puzzle of it was that there were not, and never had been, any volcanoes inNebraska.

Loading...

未加载完，尝试【刷新】or【关闭小说模式】or【关闭广告屏蔽】。

尝试更换【Firefox浏览器】or【Chrome谷歌浏览器】打开多多收藏！

移动流量偶尔打不开，可以切换电信、联通、Wifi。

收藏网址：www.ziyungong.cc

(＞人＜；)