Seal and impression. Located at the Louvre Museum. Green jasper, 1.75" h, c. 3,300 B.C. Click and drag photo to resize. Script from The Java Script Source
Note the points of comparison between the head of the "Mesopotamium sauropod" and the skull of Diplodocus Longus, as highlighted in the graphic below. Click and drag to resize.
We had not previously made mention of the flying creatures (pterosaurs?) flying above the sauropods, but a sauropod identification certainly has an impact on the presumed size of these unbirdlike flying creatures, shown in more detail below.