Is the Permian-Triassic unusual? Implications of climate and tectonic development. Paper and related correspondence Box 12 Unit ID: 100
James McElroy's comparative lithostratigraphy of Gondwana sequences, 1967 Box 8 Unit ID: 78 Date: 1967
Late Palaeozoic to Early Mesozoic Rocks, Fossils and Geological events in Western USA, Jul-92 Box 1 Unit ID: 6 Date: Jul-92