Heliopause | Kudrat on Instagram: "A perfectly preserved fish fossil revealed inside a limestone slab a window into ancient aquatic life frozen in time. Millions of years ago, this fish sank to the bottom of a calm lake or sea and was quickly buried by fine layers of sediment. Over countless ages, minerals replaced its organic tissues, turning it into stone while retaining its delicate details. When the rock was split open, the fossil appeared exactly where it had rested since prehistory - a rem

Fossils | Characteristics, Types & Importance