This picture is an unidentified fern fossil impressions . They were found in a clay-ironstone nodule in Tipton Staffordshire England. The...

This picture is an unidentified fish fossils . They were found in Greenland. The fossil dates to the Pleistocene Epoch of the Quaternary...

This fossil is an unidentified ammonite fossil preserved in iron sulfide . It was on display at the British Natural History Museum in L...