Fossil provide us evidence about
`to` The organisms that lived long ago such as the time period during which they lived, their structure etc.
`to` Evlutionary development of species i.e., line of their development.
`to` Connecting links between two groups. For example, feathers present in some dinosaures means that birds are very closely related to reptiles.
`to` Which organisms evolved earlier and which later.
`to` Development of complex body designs form the simple body designs.
