

More revealing histories of exposure; the rat urine story.
Keywords
magnetic intensity;packrats;paleomagnetism;magnetic field;cosmogenic elements;Theria;Eutheria;Rodentia;variations;reconstruction;Mammalia;chlorine;Cl 36;halogens;exposure age;Chordata;Tetrapoda;Vertebrata;geochronology;C 14;carbon;isotopes;radioactive isotopes