. Cambrian Brachiopoda. Brachiopoda, Fossil. 342 CAMBRIAN BRACHIOPODA. feet (884 m.) above the Lower Cambrian and 1,500 feet ( m.) below the Upper Cambrian in the central part of the bed forming la of theMarjum limestone [Walcott, 1908f, p. 179], about one mile ( km.) south-southwest of Marjum Pass; all in the House Range [Walcott, 1908f, PI. XIII], Millard County, Utah. (lis) Shales just above Simpson Spring, about 20 miles ( km.) west-southwest of Vernon, on the stage road from Vernon to Fish Spring, Tooele County, Utah. (lOw) Shaly limestones about 5 miles (8 km.) northeast of O
. Cambrian Brachiopoda. Brachiopoda, Fossil. 342 CAMBRIAN BRACHIOPODA. feet (884 m.) above the Lower Cambrian and 1,500 feet ( m.) below the Upper Cambrian in the central part of the bed forming la of theMarjum limestone [Walcott, 1908f, p. 179], about one mile ( km.) south-southwest of Marjum Pass; all in the House Range [Walcott, 1908f, PI. XIII], Millard County, Utah. (lis) Shales just above Simpson Spring, about 20 miles ( km.) west-southwest of Vernon, on the stage road from Vernon to Fish Spring, Tooele County, Utah. (lOw) Shaly limestones about 5 miles (8 km.) northeast of Osceola, on the east side of the Snake Range, White Pine County; and (68) shaly limestones in upper beds of Secret Canyon shale, either in New York or Secret Canyon, Eureka district [Hague, 1892, Atlas], Eureka County; both in Nevada. Specimens that are compared with Micromitra sculptilis occur at the following locaHty: Middle Cambrian: (541) About 2,950 feet ( m.) above the Brigham quartzite and 1,225 feet ( m.) below the Upper Cambrian in the limestone forming le of the Bloomington formation fWalcott, 1908f, p. 194], in Blacksmith Pork Canyon, about 10 miles ( km.) east of Hyrum, Cache County, Utah. MiCKOMITRA SCULPTILIS ENDLICHI Walcott. Text figure 22. Micromitra sculptilis endlichi Walcott, 1908, Smithsonian Misc. Coll., vol. 53, No. 3, p. 56. (Characterized as below as a new variety.) This form is represented by a single specimen of a ventral valve. The surface is similar to that of Micromitra sculptilis (Meek), but the valve is more elongate, A^ ^^.gjgl^l^^ less elevated, and larger (5 mm. in diameter) than the specimens of ^1 ^ff ^^^^mV ^^^ latter from the type locality. iB n^|^^^^^B| The varietal name is given for Mr. F. M. Endlich of the Hayden n ^^^H^HVl Survey. 1 Formation and locality.—Tipper Cambrian: (8o) Limestone 2 miles ( km.) north of Aurum, Schell Creek Range, White Pine Coimty, Nevada. A' Figure 22.— Micromiira sculpiilis endlichi Walcot
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