🦴🐚🪲

#fossils #fossiliferous rock #limestone #shale #ancient life

🌊⏳⬇️🪨

#shale #sedimentary rock #deposition #mudstone #sedimentation

🪨—⚫

#shale #sedimentary rock #layered rock #dark rock #flat rock

🖤🪨⛽

#shale #shale rock #sedimentary rock #rock layers #shale oil

🪨🦴🦕

#shale #fossiliferous rock #sedimentary rock #dinosaur fossil

🪨〰️〰️

#platy structure #layered rock #shale

⛰️🤏🍂

#shale #flaky rock #fissile rock #splitting rock #weak rock #brittle rock