Fossil
"Shells [are] found in the midst of the land, and on mountains. In the quarries of Syracuse the impressions of a fish and seaweed have been found; on Paros the impression of a bay-leaf in the depth of a stone, and on Malta the flattened shape of sea-creatures [have been found]. These, he says, were formed when everything, long ago, was covered in mud, and the impression dried out in the mud". Guthrie p. 387