A tropical tree specialist could help date and identify some of the hundreds of trees at pool bottoms to assess landscape change.
A primate skull unearthed outside of Mecca in Saudi Arabia is the closest common ancestor to apes and Old World monkeys, researchers say, and helps date the split.
Crafts's Wheelers bear a remarkable resemblance to Mr. and Mrs. John Hill Wheeler, a North Carolina couple whom Gates uses to help date and document Crafts's narrative.
Now researchers say the shells, unearthed in abundance at archeological sites in Africa and Asia, can help date fossils in the same strata.
It is the first such find from a domestic setting – similar examples are isolated finds by metal detectors, or from graves – and helps date the hall to the late sixth or early seventh century.
The lasers and scans which identify the chemicals used in paint can help date a picture, often scuppering the claims to originality of an 'older' painting.
In such cases, identifying the writing implement can help date when both original and later text were written; paper stock can provide similar information, which must be included in annotations to any good transcription.
As you'd imagine the list covers the full spectrum of science: from heroic measures to restore the fertility of a three-footed Sumatran rhino, to a scientist creating instruments that could help date features on the Moon and Mars.
And because today's sponges and eumetazoans differ in some important genetic features, the team says, the find could also help date the first appearance of genes key to the evolution of most animals living today.
Observing foamy urine may help date the onset of proteinuria.
