1.   After a lot of hard work, they found they were uncovering a more or less intact skeleton.

2.   But until now they had failed to find an intact skeleton with a well-preserved skull.

3.   Neither had swimming in clammy water, nor stumbling upon largely intact human skeletons, disconcerting as they were.

4.   Only about seven intact skeletons of that age have been found in the Americas.

5.   It contained two intact skeletons and pieces of others piled together to make room for later additions, Zettler said.