Note on the age of the Laramie group or Rocky Mountain lignitic formation

Henry Martyn Bannister

doi:10.2475/ajs.s3-17.99.243

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Bannister, H. M. (1879). Note on the age of the Laramie group or Rocky Mountain lignitic formation. American Journal of Science, s3-17(99), 243–245. https://doi.org/10.2475/ajs.s3-17.99.243

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Note on the Age of the Laramie Group or Rocky Mountain Lignitic Formation