๐Ÿงฌap biology review

Stratigraphy

Written by the Fiveable Content Team โ€ข Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 examโ€ขWritten by the Fiveable Content Team โ€ข Last updated September 2025

Definition

Stratigraphy is the study of rock layers (strata) and layering (stratification). It is primarily used in geology for dating and understanding geological events.