stratigraphy and paleontology are concerned with the sedimentary and life history of the earth.
It must always be remembered that the evidence is primarily one of stratigraphy.
The latter paper should be carefully read by all students of the stratigraphy of the Lower Palozoic Rocks.
A medal was awarded for a sheet of thirteen sections illustrating the stratigraphy of Vermont and New Hampshire.
He made original and important observations on stratification, and laid down some of the fundamental axioms in stratigraphy.
stratigraphy stra·tig·ra·phy (strə-tĭg'rə-fē)