=LDR 22 4500 =001 340 =082 04$a551.7009 SCH =100 1\$aSchuchert, Charles =245 10$aAtlas of Paleogeographic Maps of North America =260 \\$aNew York :$bJohn Wiley,$c1955 =650 \0$aBooks =852 \\$bFreeman Library$h551.7009 SCH$zNot located