🌍🧱𓆣🪨

#ordovician geology #fossil layers #stratigraphy #ancient earth #marine sediments #brachiopod #trilobite #rock record

🌍📜⏳

#earth history #geological record #rock record #historical geology #deep time #geological time scale

🪨🌊🦞

#fossil marine arthropod #ancient ocean life #paleozoic era #sea scorpion #rock record