National Geographic : 1956 Mar
li .. .. © National Geographic Society 364 Kodachrome by Staff Photographers Robert F. Sisson and Donald McBain A Palmlike Plant Left These Imprints on Colorado's Red Rock 165 Million Years Ago Fossils, the hands on eternity's clock, reveal the pageant of life through the ages. This specimen predates other known flowering plants by about 10 million years. Flowering plants that enclose their seeds in a protective ovary dominate modern vegetation. Primitive spore bearers such as ferns represent the old order. Co-author Roland W. Brown points out the leaf's ribbed structure to Dr. Alexander Wetmore, Research Associate of the Smithsonian Insti tution and a Trustee of the National Geographic Society. The plant's discovery is here announced for the first time.