Hello, here is a Big! super Rare and 100% natural Moroccan Stromatolite fossil with VERY well defined growth rings or layers!
Here's more info... Stromatolites are layered colonial structures predominately formed by cyanobacteria and are the oldest fossils on Earth, dating back to more than 3 BILLION years! They are thought to be primarily responsible for the Oxygenation of the Earths atmosphere or the air that we breath.....neat!
This "rock" was a living Bacteria colony during the late Proterozoic are a CRAZY 600 million to three BILLION years ago!
This fossil measures a nice! 5 1/8" or 13.0cm at its biggest or from opposing side to side and a Display STAND is included!