fossils
n. countable B1 Intermediate US //ˈfɑsəɫz// UK //fˈɒsəlz// fos·sils
n. the remains or traces of ancient plants and animals that have turned to stone. You find them in rock layers.
n. the preserved remains or physical traces of organisms from the geological past, typically mineralised within sedimentary rock.
The children found small fossils in the sand.
Paleontologists study fossils to understand how life on Earth changed over millions of years.
The discovery of well-preserved dinosaur fossils in this region has significantly advanced our understanding of prehistoric ecosystems.