We can speculate when these builds of the big Pyramids in Egypt occured.
We however have the severe Water Erosion on the huge Limestone blocks which rise several courses above the plateau via Sphinx /Valley Temples...and higher up incline via Menkaure Mortuary Temple.
In Central America....Temples built over sacred grotto...
Become Mask face Temples...which are later built over...
Either the Mask face is included in the next build or burried inside a larger temple/pyramid.
There are aspects to several of the Big Pyramids in Egypt as reffed by John Anthony West,
Robert Schoch. ...that they existed long before as a structure which was built upon.
The Dynastic Egyptians were not the ones doing this to the big Pyramids.
These via the severe Water Erosion indicate they existed long into time past when high waters surged over the plateau...as reffed by Schoch.
The symbolism of both Temples ...when mainstream history says there was no contact.
Clearly.....Pyramids Temples are world wide consciousness and purpose.
Dynastic Egypt continue that...upon what they arrive to find which is allready vastly ancient.
They build pyramids....we see the outcome via Dynasty 5 : )
China,Egypt, Mexico, Heavens mirror