. Annual report for the year ended June 30 .... United States National Museum. INVESTIG'ATIONiS AND REiSEARCH 87 erts has under study a new genus and several new species of fossil crab from the Upper Cretaceous of Nigeria and the southeastern United States. Evaluation of the systematic position of other genera is included in this project. In another study he is reevaluating two fossil crab species. The library research and photographing of speci- mens has been completed for both studies and preparation of manu- scripts is under Mammals of the lower Miocene, a mural in the hall of fossil
. Annual report for the year ended June 30 .... United States National Museum. INVESTIG'ATIONiS AND REiSEARCH 87 erts has under study a new genus and several new species of fossil crab from the Upper Cretaceous of Nigeria and the southeastern United States. Evaluation of the systematic position of other genera is included in this project. In another study he is reevaluating two fossil crab species. The library research and photographing of speci- mens has been completed for both studies and preparation of manu- scripts is under Mammals of the lower Miocene, a mural in the hall of fossil mammals, as reconstructed by artist Jay H. Matternes on the basis of fossils from the Harrison formation of western Nebraska. Plant life, determined from fossil leaves, seeds, and pollen of the period, includes willow, Cottonwood, hackberry, aromatic sumac, cattail and a carpet of short grass of the genus Aristida. Vertebrate paleontology.—Curator C. Lewis Gazin completed his study of the early Eocene mammalian faunas of the Wasatch forma- tion in southwestern Wyoming, involving Knight faunas of the Fossil, Green River, and Washakie Basins and the later Wasatchian faunas of the New Fork and Cathedral Bluffs tongues. Approximately 58 genera and 105 species of fossil mammals were involved, and about 20 percent of these were primates, rounding out his earlier study of the middle and later Eocene members of the order. The discovery of eavlj Eocene mammals in the Almy formation during the field season tliis year, demonstrating that the age of these. 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
Size: 2094px × 1193px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookpublisherwashingtonsmithsonianinstitution
