..., Mobulavermis adustus new genus new species, the first lobopodian to be reported from the Cambrian-age Pioche Shale of Nevada. Mobulavermis adustus was large and possessed more ventrolateral flap pairs than any other known lobopodian or radiodont. It is found to be a close relative of both Kerygmachela...

...BRUCE S. LIEBERMAN Abstract A new Burgess Shale-type soft-bodied fauna crossing the Lower-Middle Cambrian boundary in the Comet Shale Member of the Pioche Formation in Lincoln County, Nevada, contains common remains of soft-bodied ecdysozoan taxa. These fossils provide important new information...

...Frederick A. Sundberg; Linda B. McCollum Abstract Twelve ptychopariid species assigned to five genera occur in the Lower-Middle Cambrian boundary interval, Pioche Shale, eastern Nevada. New taxa include one genus, Eokochaspis, and seven species, Eokochaspis nodosa, E. delamarensis, E. metalaspis, E...

...Peter G. Vikre; Quentin J. Browne Abstract In the Pioche district, lead, zinc, silver, gold, copper, and manganese were mined from intrusion-related bedding replacement, fissure replacement, and fissure vein deposits in Late Proterozoic and Cambrian siliciclastic and carbonate rocks. Radioisotopic...

...A. R. Palmer Abstract The extinction of the Olenellina on Laurentia can be located within centimeters in the C-shale or uppermost Combined Metals Limestone members of the Pioche Formation in eastern Nevada. Olenellid species diversity beneath the extinction boundary is not diminished. One...

...TERRENCE J. TOY Abstract The relationship between climate and hillslope form was investigated at 29 sites along two traverses: one from Berea, Kentucky, to Pioche, Nevada; the other from Glendive, Montana, to Ruidoso, New Mexico. A rigorous site-selection procedure was used to minimize...

...W. H. Flack Abstract President H. W. Arndt presided at a stated meeting, 29 members and 16 visitors attending. Dr. Joseph L. Gillson spoke on the “Minerals of the Pioche, Nevada, silver mining region.” He described the occurrence of jarosite, plumbojarosite, hydrozincite, magnesite, willemite...

...HARRY E. WHEELER Abstract Biostratigraphic and lithologic correlations of Lower and Middle Cambrian strata are made in eastern and southeastern Nevada at Eureka, Cave Valley, Pioche, Delamar, Mormon Range, and Virgin Mountains, and in Arizona at the western end of the Grand Canyon near Grand Wash...

... of western Utah shows strong affinities with faunas of the upper Arrojos Formation of Sonora, Mexico; upper Bright Angel Shale of the Grand Canyon, Arizona; lower Stephen Formation of British Columbia; upper Pioche Shale of the northern Egan Range, Nevada; and the Chisholm Shale of the Pioche District...

... zone may be present but is not recognizable because of structural complexities and scarcity of fossils. The Currant Creek section has been compared with that of the Pioche District, Nevada; House Range, Utah; and the Bear River Range, Utah-Idaho. Comparisons indicate that the Albertella zone of Currant...

...KENNETH G BRILL, JR. Abstract Subsiding basins and broad uplifts influenced the distribution of Permo-Pennsylvanian strata in the Colorado Plateau and eastern Great Basin. Within the area of study are the Pioche and Hamilton basins of eastern Nevada and the southern part of the Oquirrh basin...

...Harald Drewes; A. R. Palmer ABSTRACT The southern Snake Range of Nevada lies between the Cambrian sections at Pioche and Eureka, Nevada, and Gold Hill and the House Range, Utah. The Cambrian rocks of the area include about 5,000 feet of beds assigned to the Prospect Mountain quartzite, Pioche shale...

...CHARLES DEISS Abstract Field and laboratory studies have shown that the older type Cambrian sections in Nevada, Utah, and Wyoming are not usable for correlation, and that published faunal lists are incomplete and partly erroneous. In 1936 and 1937, fossils were accurately zoned in seven remeasured...

...; the other three, part of the Nevada Test Site Net, are near Darwin, California, Pioche, Nevada, and Tonopah, Nevada. Each station is equipped with three orthogonally oriented, Benioff short-period seismometers followed by phototube amplifiers with 5 cps galvanometers. Sig- nals from each instrument...

... the Pioche shale by Walcott (1908 , p. 11) for exposures in the vicinity of Pioche, Nevada. Since Walcott, the name has been used in every locality in western Utah and eastern Nevada except the Deep Creek Mountains, and the writer has therefore dropped the name Cabin in favor of Pioche, which has priority...