The Prodromus of Nicolaus Steno’s Dissertation Concerning a Solid Body Enclosed by Process of Nature Within a Solid

work by Steno

Also known as: “De Solido Intra Solidum Naturaliter Contento Dissertationis Prodromus”(Show More)

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July 16, 2026

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Nicolaus Steno's Prodromus (1669) is a foundational work in geology. It established key principles for understanding rock layers and fossils.

Steno argued that fossils, like shark teeth found in Malta, were the actual remains of ancient organisms, not mere stones. He explained that these organic parts could become encased in sediment, which later hardened into rock.12

He also proposed the principle of superposition, stating that in undisturbed rock layers (strata), the oldest layer is at the bottom, and each successive layer above it is younger. This work laid the groundwork for stratigraphy and historical geology.132

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Nicolaus Steno
…Naturaliter Contento Dissertationis Prodromus (The Prodromus of Nicolaus Steno’s Dissertation Concerning a Solid Body Enclosed by Process of Nature Within a Solid). In this work, a milestone in the literature of geology, he laid the foundations of the science of crystallography. He reported that, although quartz crystals differ greatly…
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…Naturaliter Contento Dissertationis Prodromus (The Prodromus of Nicolaus Steno’s Dissertation Concerning a Solid Body Enclosed by Process of Nature Within a Solid). In this work, a milestone in the literature of geology, he laid the foundations of the science of crystallography. He reported that, although quartz crystals differ greatly…
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law of superposition
…Naturaliter Contento Dissertationis Prodomus (1669; The Prodromus of Nicolaus Steno’s Dissertation Concerning a Solid Body Enclosed by Process of Nature Within a Solid). It is one of the great general principles of geology.
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…Naturaliter Contento Dissertationis Prodomus (1669; The Prodromus of Nicolaus Steno’s Dissertation Concerning a Solid Body Enclosed by Process of Nature Within a Solid). It is one of the great general principles of geology.
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geochronology
The principle of superposition of rock strata
…Steno published his noted treatise The Prodromus of Nicolaus Steno’s Dissertation Concerning a Solid Body Enclosed by Process of Nature Within a Solid, a seminal work that laid the essential framework for the science of geology by showing in very simple fashion that the layered rocks of Tuscany exhibit sequential…
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…Steno published his noted treatise The Prodromus of Nicolaus Steno’s Dissertation Concerning a Solid Body Enclosed by Process of Nature Within a Solid, a seminal work that laid the essential framework for the science of geology by showing in very simple fashion that the layered rocks of Tuscany exhibit sequential…
Read More