On the "geodes" of the Keokuk Formation and the genus Biopalla, with some species

Samuel Jacob Wallace

doi:10.2475/ajs.s3-15.89.366

Mineralogy

On the "geodes" of the Keokuk Formation and the genus Biopalla, with some species

Samuel Jacob Wallace

American Journal of Science May 1878, s3-15 (89) 366-370; DOI: https://doi.org/10.2475/ajs.s3-15.89.366

Samuel Jacob Wallace

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American Journal of Science

Vol. s3-15, Issue 89

May 1878

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On the "geodes" of the Keokuk Formation and the genus Biopalla, with some species

Samuel Jacob Wallace

American Journal of Science May 1878, s3-15 (89) 366-370; DOI: 10.2475/ajs.s3-15.89.366

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On the "geodes" of the Keokuk Formation and the genus Biopalla, with some species

Samuel Jacob Wallace

American Journal of Science May 1878, s3-15 (89) 366-370; DOI: 10.2475/ajs.s3-15.89.366

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Keywords

Biopalla
geodes
Illinois
Iowa
Keokuk
Keokuk beds
Mineralogy
secondary structures
sedimentary structures
United States

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