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Portrait of Niels Steensen (1666–1677). Unsigned but attributed to court painter Justus Sustermans. (Uffizi Gallery, Florence, Italy).
Portrait of Niels Steensen (1666–1677). Unsigned but attributed to court painter Justus Sustermans. (Uffizi Gallery, Florence, Italy).
De solido intra solidum naturaliter contento dissertationis prodromus (1669)
De solido intra solidum naturaliter contento dissertationis prodromus (1669)
Elementorum myologiae specimen: Illustration from Steensen's 1667 paper comparing the teeth of a shark head with a fossil tooth.
Elementorum myologiae specimen: Illustration from Steensen's 1667 paper comparing the teeth of a shark head with a fossil tooth.
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The Permian through Jurassic strata of the Colorado Plateau area of southeastern Utah demonstrate the principles of stratigraphy.
The Permian through Jurassic strata of the Colorado Plateau area of southeastern Utah demonstrate the principles of stratigraphy.
Engraving from William Smith's monograph on identifying strata based on fossils
Engraving from William Smith's monograph on identifying strata based on fossils
Strata in Cafayate (Argentina)
Strata in Cafayate (Argentina)
Chalk layers in Cyprus, showing sedimentary layering
Chalk layers in Cyprus, showing sedimentary layering