TY - BOOK T1 - The base of the Upper Jurassic Morrison Formation in east-central Utah :a review of the first description of the base of the Morrison Formation in east-central Utah and some later modifications / DA - 1985. CY - Washington, D.C. : CY - Alexandria, VA : AU - O'Sullivan, Robert Brett, VL - 1561 CN - QE75 CN - QE75 PB - U.S. G.P.O. ; PB - For sale by the Branch Distribution, U.S. Geological Survey, PP - Washington, D.C. : PP - Alexandria, VA : PY - 1985. ID - 229477 KW - Geology TI - The base of the Upper Jurassic Morrison Formation in east-central Utah :a review of the first description of the base of the Morrison Formation in east-central Utah and some later modifications / ER -