Day 269 – Earliest Forms of Life   6 comments

Stromatolites are the oldest known fossils, originating over 3 billion years ago. There are a few spots in Western Australia where you can see these so-called “living fossils”. They’re called living fossils because as a very early form of life on earth, they are very uncommon now. One of the few places they’re found is Western Australia. Some of the best examples are in Hamelin Pool in Shark Bay. We planned our trip a bit late and the whole area around Shark Bay was booked when we wanted to go so we didn’t see those ones.

The ones shown above are from Lake Thetis, a salt lake near Cervantes. While the existence of stromatolites has been dated back 3 billion years, the structures in Lake Thetis have been dated back a mere 3,500 years.

While they’re not the most active of wildlife you’d ever see in Australia, they’re still pretty darn cool.

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6 responses to “Day 269 – Earliest Forms of Life

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  1. Who would have thought that a post on fossils could be so fascinating. Thanks.

    • Ha! Honestly, as soon as I pressed Publish, I sat here asking myself where this post came from. Not sure what I was thinking. Brain must be on a slow idle today. Couldn’t come up with anything more clever. Thanks for being kind!

  2. Intriguing post. You have been nominated for a Versatile Blogger Award – list is posted on my blog. Your work is always interesting.

  3. A living fossil, how interesting (I had no idea there was such a thing)! Thank you for the informative post (and the cool picture). 😀

  4. Nice picture – and I was a geologist in another life, so stromatolites are very familiar – nice to see them! Adrian

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