Regional meeting of A.A.P.G. and eighteenth annual meeting & field trip [of the] South Texas Geological Society guide book ; paleozoic and cretaceous of eastern Llano uplift, October 20, 1951 Guide book Palezoic and cretaceous of eastern Llano uplift, October 20, 1951 Palezoic and cretaceous of eastern Llano uplift, October 20, 1951 South Texas Geological Society creator text txu 1951 monographic eng print 10 pages : illustrations ; 28 cm n-us-tx Geology Texas Geology, Stratigraphic Paleozoic Geology, Stratigraphic Cretaceous Cretaceous Geologic Period Geology Geology, Stratigraphic Paleozoic Geologic Period Texas From 65 to 570 million years ago fast QE167 .S687 1951 557.64 IFA 830623 20170308131953.0 in00003859871 eng