Fossil dating difficulty in south africa

12-May-2018 23:29

Below you can see a photo of a fossil of the head of a dinosaur, and the next image shows you what scientists think this dinosaur looked like.The fossil shape of the head of Massospondylus, a dinosaur that lived in the eastern Free State about 200 million years ago August_1,_2012_-_Massospondylus_carinatus_Fossil_Skull_on_Display_at_the_Royal_Ontario_Miseum_(BP-I-4934)This fossil of the dinosaur's head is not the actual bones, but it is actually now a rock in the shape of the dinosaur's bones.The heavy sand pressed down on the bottom sediments.

The wind blows away the feathers and soon there is nothing left to see. In years after that, more floods brought more sand and put it on top.

We now know when there were ice ages where the whole Earth was covered in ice for thousands of years, and when it was warmer and there were droughts.

The layers of rock which are lower down will be the oldest as they were deposited first.

Over millions of years, the bones turned into rock.

So, a fossil is the remains of an ancient plant or animal which has been preserved in a rock. Imagine being around when all the dinosaurs were walking on Earth.

The wind blows away the feathers and soon there is nothing left to see. In years after that, more floods brought more sand and put it on top.We now know when there were ice ages where the whole Earth was covered in ice for thousands of years, and when it was warmer and there were droughts.The layers of rock which are lower down will be the oldest as they were deposited first.Over millions of years, the bones turned into rock.So, a fossil is the remains of an ancient plant or animal which has been preserved in a rock. Imagine being around when all the dinosaurs were walking on Earth.So we have to use other ways to find out about what life was like on Earth millions of years ago. Fossils are actually our most valuable source of information about the ancient past! Fossils tell us about the organisms that lived long ago.