Fossil Records By: Kate, Susannah, Emma, and Anne
What is a Fossil? • The prehistoric remains of an animal or a plant • Can be dated through carbon dating. • Study of Fossil is Paleontology
Fossil Facts • Age of earliest fossil: about 3.8 billion years old. • It was a fossil of a cyanobacteria
Evidence that support evolution • Provides snapshots of the past. • They illustrate a panorama of evolutionary change over the past four billion years. • There may be bits missing, but fossil evidence clearly shows that life is old and has changed over time. Source: http://evolution.berkeley.edu/evolibrary/article/0_0_0/lines_02
What parts are fossilized • Footprints/ prints • Bones • Seeds • Leaves • Ripple marks in a prehistoric shore • Eggs • Dinosaur dung
Formation of Fossils • Fossils can form in Amber • Buried in mud • Either in or over the sediment of rocks • Animals can be trapped from natural disasters
Method of dating(Radioactive decay) • Also known as carbon dating • Arranges it through oldest to newest. • Creates sequence in chronological order and can see where speciation occurred or evolution. • Used to compare living species to past species and can know how old they were by dating the bones.