Petrified Peat from a Paleocene Lignite in North Dakota

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Science  14 Jul 1972:
Vol. 177, Issue 4044, pp. 165-166
DOI: 10.1126/science.177.4044.165


The first discovery of a silicified peat in a Paleocene lignite is reported from western North Dakota. The state of preservation of plant structures is comparable to that of Carboniferous coal balls. A sampling of anatomical details is illustrated.