🦴🦕⬇️⏳

#biostratigraphy #fossils #superposition #relative dating #geological time scale #index fossils

⛏️🪨⏳

#stratigraphy #archaeological layers #geological time #relative dating #excavation dating #rock strata dating

🧱⬇️⏳

#law of superposition #relative dating #strata #geology principles #rock layers #sedimentology

⛰️🟫🟩⬇️⏳

#geological superposition #stratigraphy #rock layers #principle of superposition #relative dating

1️⃣🏺2️⃣🦴3️⃣🏛️

#relative dating #artifact sequence #historical progression #archaeological order #typological sequence #cultural sequence