Symposium: Vertebrate Paleontology as a Discipline in Geochronology: I, II, III Savage, Donald E. ; McKenna, Malcolm C. Abstract Publication: Geology Pub Date: February 1974 DOI: 10.1130/0091-7613(1974)2<83:SVPAAD>2.0.CO;2 Bibcode: 1974Geo.....2...83S