. Annual report for the year ended June 30 .... United States National Museum. INVESTIGATION AND RESEARCH 75. Mural at the entrance of the new hall of fossil fishes and amphibians com- pares graphically the age of man with the vastness of geologic time. Vertebrate paleontology.—Curator C. Lewis Gazin has con- tinued his investigation of the lower Eocene mammahan faunas of the Knight formation. For the various faunas involved he has completed study of materials representing 7 of the 13 orders of mammals then extant, including the highly diversified insectivores, primates, rodents, and carnivore
. Annual report for the year ended June 30 .... United States National Museum. INVESTIGATION AND RESEARCH 75. Mural at the entrance of the new hall of fossil fishes and amphibians com- pares graphically the age of man with the vastness of geologic time. Vertebrate paleontology.—Curator C. Lewis Gazin has con- tinued his investigation of the lower Eocene mammahan faunas of the Knight formation. For the various faunas involved he has completed study of materials representing 7 of the 13 orders of mammals then extant, including the highly diversified insectivores, primates, rodents, and carnivores. The Knight investigation is supplemental to an earlier report published in 1952 and is based on later, more extensive collections from a variety of localities represent- ing successive horizons in the lower Eocene, the earliest of which had not been reported previously from southwestern Wyoming. Dr. Gazin completed a study of the relationships of Apheliscus and Phenacodaptes, genera of Eocene and Paleocene mammals that he has demonstrated belong in the same phyletic line and are related to the pantolestid insectivores. 563136—60 6. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original United States National Museum. [Washington] : Smithsonian Institution
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