round? flat? hollow? cube? donut? cylinder? it’s a 4d shapeshifter.

memorie of a place 2 avoid:

PRECAMBRIAN

hadean 

eoarchean

paleoarchean

mesoarchean 

neoarchean

PROTEROZOIC

siderian (P)

rhyacian

orosirian

statherian

calymmian(M)

ectasian

stenian 

tonian (N)

cryogenian

ediacaran 

PHANEROZOIC

cambrian (P) - terreneuvian, series 2, miaolingian, furongian

ordovician 

silurian - llandovery, wenlock, ludlow, pridoli

devonian 

carboniferous -mississippian, pennsylvanian, 

permian - cisurian, guadalupian, lopingian

triassic (M)

jurassic 

cretaceous 

paleogene (CENO) - paleocene, eocene, oligocene

neogene -miocene, piocene

quaternary - pleistocene, holocene