- GeoRef, Copyright 2004, American Geological Institute. Reference includes data from Bibliography and Index of North American Geology, U. S. Geological Survey, Reston, VA, United States
Acid residues from limestone obtained from a single locality in eastern Nevada have yielded 5 lagenid species of Triassic foraminifera. The specimens are silicified and are present in over 600 ft. of section. The fauna is associated with Lower Triassic conodonts and occurs about 1,000 ft. above the Lower Triassic (Scythic) ammonoid guide, Meekoceras.