This Eolith Flint Hammer Tool from Wimereux, Pas-de-Calais in France shows a whole elephant depiction. The sand layer the item was found in was dated to the lower Paleocene, that's nearly 66MYA. Readers of my blog will know that elephant depictions are one the most prevalent motifs shown in prehistoric figure stones, no doubt due to the importance of the animal to incredibly ancient homo-sapiens. The elephant motif can be seen facing rightward and a mammoth motif can be seen facing leftward but needs to be tilted slightly clockwise.
Image Source : Genisis Park