TY - BOOK AU - Secord,Ross ED - University of Michigan TI - The Tiffanian land-mammal age (middle and late Paleocene) in the northern Bighorn Basin, Wyoming T2 - Mauseum of Paleontology, University of Michigan , Papers on paleontology PY - 2008/// CY - Ann Arbor, MI PB - Museum of Paleontology, University of Michigan KW - Paleontology KW - Paleocene KW - Wyoming KW - Mammals, Fossil KW - Teeth, Fossil N1 - "December 15, 2008."; Includes bibliogr. references : (p. 171-179) ER -