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| style="height:20px; width:300px; text-align:center;" |The Tyrannosaurus Rex is a dinosaur that became [[extinct]] 66 million years ago.
| style="height:20px; width:300px; text-align:center;" |The Giant Sloth lived in North America and became [[extinct]] 10,000 years ago at the end of the last [[Ice Age]].
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|[[File:DimetrodonFossil.png|center|300px]]
: [[Fossil]]s are one of the lines of [[Scientific Evidence|scientific evidence]] for [[Evolution by Natural Selection|evolution]].
: Since [[sedimentary]] [[rock]]s build up in layers over time [[fossil]]s found in deeper layers are from further in the past. This can be used to date the [[fossil]]s telling us when the [[organism]] died.
: [[Fossil]]s provide a number of [[Transitional Form|transitional forms]] showing how some [[species]]s which are not [[extinct]] gradually [[Evolution by Natural Selection|evolved]] over time to form the [[species]] that are alive today.
: The [[fossil]] record is not complete as [[Fossil|fossilisation]] is a rare process, so very few [[organism]]s become [[fossil]]s after death. However, there are enough records to show clear [[Scientific Evidence|evidence]] of [[Evolution by Natural Selection|evolution]].
===References===
====AQA====
:[https://www.amazon.co.uk/gp/product/0008158754/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0008158754&linkCode=as2&tag=nrjc-21&linkId=27ad53b0283feeff7fc5ae04a9e205f306 ''Fossil, page 280-3, GCSE Biology; Student Book, Collins, AQA '']
:[https://www.amazon.co.uk/gp/product/1782945563/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945563&linkCode=as2&tag=nrjc-21&linkId=9a1d023a374038e6072f33c4f3cf808b ''Fossils, page 101, GCSE Biology; The Revision Guide, CGP, AQA '']
:[https://www.amazon.co.uk/gp/product/1471851338/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1471851338&linkCode=as2&tag=nrjc-21&linkId=425855d5890466e47189e1c21b67a1ea ''Fossils, pages 219-20, GCSE Biology, Hodder, AQA '']
:[https://www.amazon.co.uk/gp/product/1782946381/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782946381&linkCode=as2&tag=nrjc-21&linkId=5ec5fc3f6429e30c1d9ab9bca2bccf93 ''Fossils, pages 243, 244, GCSE Combined Science Trilogy; Biology, CGP, AQA '']
:[https://www.amazon.co.uk/gp/product/1782945954/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945954&linkCode=as2&tag=nrjc-21&linkId=100574c08fbbb64318256eb79ed61a76 ''Fossils, pages 301, 302, GCSE Biology, CGP, AQA '']
:[https://www.amazon.co.uk/gp/product/1471851362/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1471851362&linkCode=as2&tag=nrjc-21&linkId=7d78d70a2044ee9982dae010c94af92a ''Fossils, pages 59, GCSE Combined Science Trilogy 2, Hodder, AQA '']
====Edexcel====
:[https://www.amazon.co.uk/gp/product/1782948120/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782948120&linkCode=as2&tag=nrjc-21&linkId=dedef775c6a43dbb0a609441525adac0 ''Fossils, pages 126, 130, 131, 134, GCSE Biology, CGP, Edexcel '']
:[https://www.amazon.co.uk/gp/product/1782945741/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945741&linkCode=as2&tag=nrjc-21&linkId=30da4f2178da182547b62a7329d13b57 ''Fossils, pages 32, 33, GCSE Combined Science; The Revision Guide, CGP, Edexcel '']
:[https://www.amazon.co.uk/gp/product/1782946748/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782946748&linkCode=as2&tag=nrjc-21&linkId=a4f0348fc37d0ba1bb52d27f8679581f ''Fossils, pages 45, 47, GCSE Biology; The Revision Guide, CGP, Edexcel '']
====OCR====
:[https://www.amazon.co.uk/gp/product/1782945695/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945695&linkCode=as2&tag=nrjc-21&linkId=ceafcc80bcad6b6754ee97a0c7ceea53 ''Fossils, page 55, Gateway GCSE Combined Science; The Revision Guide, CGP, OCR '']
:[https://www.amazon.co.uk/gp/product/1782945660/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945660&linkCode=as2&tag=nrjc-21&linkId=83aa4500ad7759e7f401a1c5ba5df758 ''Fossils, page 74, Gateway GCSE Biology; The Revision Guide, CGP, OCR '']