surely coincidental :) Well, yes, probably. More interesting than false alien visitation theories is the extent to which these images may represent cultural borrowing or even travel over thousands of miles in a non technological age.
28 Large Stone Boxes in the underground Serapeum at Saqqara are made of granite, presumably brought from Aswan which is 500 miles away. The lid was cut from the same block as the box itself, and the two combined weigh more than 80 tons
Found in ancient Egyptian tomb.The Egyptian pharoahs have elongated skulls, as found in Paracas. Some figures have "alien like" features? One theory is that an "alien like" being and a possible space craft are at the top to represent alien rule.