For the first time in three decades, scientists are about to revisit one of North America's most remarkable troves of ancient fossils: the bones of tens of thousands of animals piled at least 30 feet deep at the bottom of a sinkhole-type cave.
Associated Press, San Diego Union-Tribune Nation
Thu, 07/24/2014 - 9:53am
For the first time in three decades, scientists are about to revisit one of North America's most remarkable troves of ancient fossils: the bones of tens of thousands of animals piled at least 30 feet deep at the bottom of a sinkhole-type cave.