Fossil sharks teenth - Stratigraphy

1669 Stratigraphy

The book of science

Tom Sharp

Nicolas Steno stratigraphy Fossil sharks teenth - Stratigraphy

Stratigraphy

Principles

Time and logic

Nicolas Steno’s four principles of stratigraphy in “Principles” are superposition, original horizontality, lateral continuity, and cross-cutting relationships, according to Michael E. Brookfield. Above, those principles are in his own words as translated by John Garrett Winter.

See also in The book of science:

Readings on wikipedia: