GEOLOGY

Detailed explanation-1: -When dinosaurs walked through the mud they left footprints, just like you do on a muddy trail. Over time these footprints were filled with sand or small pebbles and eventually hardened into rock. The footprints were preserved for millions of years until erosion brought them to the surface where people can see them.

Detailed explanation-2: -’Trace fossils’ are the evidence left by organisms in sediment, such as footprints, burrows and plant roots.

Detailed explanation-3: -Dinosaur tracks are a type of trace fossil. These are evidence of an animal’s activity when it was alive, but are not part of the animal itself. Scientists that study this type of fossil are known as ichnologists.

Detailed explanation-4: -Most fossils “hide out” in sedimentary rock . When tiny bits of rocks and minerals (called sediment) join together over millions of years, they become sedimentary rock. Plants and animals that become sandwiched in this sediment eventually turn into fossils. Two examples of sedimentary rocks are sandstone and shale.