Geologic
Time: Mesoproterozoic
(1.2 billion years old)
Size: 12
by 6.5 inches
Location:
Irregully Formation, Bangemall Basin, near Ashburton River, Kooline
Station, Western Australia
Without
a doubt, this is some of the most stunning stromatolite I've ever
seen., with distincy alternating dark and light banding, with
dark purple-ish brown bands, and an occasional deep red blotch.
The formation from which it comes in Western Australia dates to
the Mesoproterozoic, to a time that the use of sex on earth for
reproduction and diversity had just begun, and when the earliest
cells with nuclei, the eucaryotes, were first appearing.
Also
see: Stromatolites
Across Geologic Time |
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