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Summary
DescriptionStranded Cambrian scyphozoans.jpg
English: Stranded scyphozoans on a Cambrian tidal flat; Elk Mound Group; Blackberry Hill, Wisconsin; photograph originally published in K.C. Gass, 2015. Solving the Mystery of the First Animals on Land: The Fossils of Blackberry Hill. Siri Scientific Press, Manchester, UK.
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