Coincidence of Shapes?

Another Karen Lucibello Daigle photo:

I saw this yesterday and immediately thought of Oley Hills:

And Karen mentioned that it also resembles this Markham Starr photo:

from:

https://lagruacenter.org/event/detail/2018/5/10/6/00/pm/451-shs_rock_formations?fbclid=IwAR1AXmkx6YCAPJpmisZ3GY7P0w7Y2-DROHXCoZ3ABMewiiNSaiwtnG2pFP4

While re-reading NM's paper, another coincidence popped it's (turtle-like) head up: