... comprises Reipe Spring limestone, Reipetown sandstone, Pequop formation, and Loray formation. In the Confusion Range, Butte Mountains, and Ely area, Pequop and Loray formations are generally recognizable, but no distinctive boundary for mapping purposes can be recognized. In these areas, the Arcturus...

... named the Pequop formation. The Pequop formation is 1,525 feet thick at its type section in Sec. 3, T. 33 N., R. 65 E., Elko County, Nevada. Composed of purplish gray, irregularly bedded, platy, silty limestones with interbedded fusuline coquinas, the lower contact is placed at the red silt member which...

... area, but considerable confusion attends its present concept; it is herein proposed to raise it to group rank to include, in ascending order, these formations: Riepe Spring Limestone (Early to Medial Wolfcampian age), Riepetown Formation (Medial to Late Wolfcampian age), Pequop Formation (Leonardian...

..., and Leppy Range of western Utah, and in the Cherry Creek Mountains, Butte Mountains, Pequop Mountains, Diamond Range, and Pancake Range of Nevada. Ferguson Mountain Formation (Wolfcampian) of northeastern Nevada and part of adjacent Utah is approximately 2,000 feet of alternating reefoid, bioclastic matrix...

... type locality in eastern Elko County, Nevada, contains one of the most prolific Wolfcampian fusulinid faunas in the eastern Great Basin. It is conformably overlain by the Pequop Formation, Leonardian in age, also rich in fusulinids. The Pequop is unconformably overlain by the Loray Formation...

... and the Darwin Canyon Formation in California, Paraheritschioides fergusonensis n. sp. from the Ferguson Mountain and Bird Spring formations in Nevada, and Wendoverella arca n. gen. and n. sp., Permastraea nevadensis n. sp., and Pararachnastraea moormanensis n. sp. from the Pequop Formation in eastern Nevada...

... are described. The collecting localities listed in 1960 for White Pine County are now referable to the Pequop Formation [Permian], Arcturus Formation [Pennsylvanian], Reipetown sandstone [Permian], Riepe Spring Limestone [Permian], and the Hogan Formation [Pennsylvanian]. GeoRef, Copyright 2004, American...

...Taylor V. Mayou Abstract Twenty-three nearly complete specimens and many broken parts of Archaeophiomusium bispinosum n.sp., and two specimens of A. burrisi (Miller), were collected from the Leonardian Pequop Formation in the Maverick Springs Range, eastern Nevada. Preservation is exceptional...

... the Ely Limestone ranges from 0 to 2,500 ft (762 m) in thickness. Hogan Formation — Robinson (1961, p. 103-104) proposed this formation name for a 250-ft (76 m) sequence of silty-sandy limestone and calcareous siltstone in the central Pequop Mountains. At the type locality Hogan Formation...

...Figure 1 —Location map showing Pequop Mountains area. 1 = Reference section of Pequop Formation; 2 = Ninemile Canyon section ...

...; the Missourian and Virgilian are absent; and the Permian consists, in ascending order of Wolfcampian Ferguson Mountain Formation (north end of the range) and lateral equivalents, Riepe Spring Limestone and Riepetown Formation (south end of range), Leonardian Pequop Formation, Loray Formation (late Leonardian...

... and skeletal limestone of the Oquirrh Formation. The Kirkman Limestone is not known to be present, but the uppermost few hundreds of feet of the Oquirrh resemble some units of the Kirkman. The units of the Permian System in the Pequop-Diamond Creek and Montello-Sublett basins are, in ascending order...

... and ventral views, Bird Spring Formation, UCMP 154094; 23, 24, head plate, anterior and ventral views, Pequop Formation UCMP 154095; 25, 26, head plate, dorsal and right lateral views, Bird Spring Formation (D-5252), UI x8898; 27 – 29, head plate, dorsal, posterior, and right lateral views, Bird Spring...

...CHARLES H THORMAN Abstract The Wood Hills and Pequop Mountains of northeastern Nevada are located within the Cordilleran miogeosyncline of Paleozoic age and in the Basin and Range province of Cenozoic age. Two structural units or plates, designated Plates I and II, are juxtaposed along the Wood...

..., is considered preferable to retention of the name Butte-Deep Creek trough. The names of lithologic units used here are: Riepe Spring Limestone and Rib Hill, Pequop, Loray, Arcturus, and Dry Mountain lithosomes ( Fig. 5 ). The first four lithosomes are named for formations and they include all or the most...