Transverse section of the pitted Chlorellopsis reef shown in Bradley 205; showing the cores of sand filled ringed pits and the conoidal excrescences at their lower ends. Moffat County, Colorado. 1925.
Dates
Date Taken
1925
Summary
Transverse section of the pitted Chlorellopsis reef shown in Bradley 205; showing the cores of sand filled ringed pits and the conoidal excrescences at their lower ends. This also shows the marked thickening of the algal layers between pit cores, natural size. Specimen is from about 138 feet below the top of the Green River formation in NE 1/4 SE 1/4 sec. 30, T. 4 N., R. 96 W. Moffat County, Colorado. August 1, 1925. Plate 38-A in U.S. Geological Survey. Professional paper 154. 1929.
Summary
Transverse section of the pitted Chlorellopsis reef shown in Bradley 205; showing the cores of sand filled ringed pits and the conoidal excrescences at their lower ends. This also shows the marked thickening of the algal layers between pit cores, natural size. Specimen is from about 138 feet below the top of the Green River formation in NE 1/4 SE 1/4 sec. 30, T. 4 N., R. 96 W. Moffat County, Colorado. August 1, 1925. Plate 38-A in U.S. Geological Survey. Professional paper 154. 1929.
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