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Pleistocene cave fossils


izak_

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Recently I went to a property in NSW with hundreds of limestone caves after a member of our fossil club invited us on a trip there. I had never even considered going caving before, caves terrify me, but for fossils? Why not. The particular cave we went down was relatively easy, 11m straight down but there was a convenient tree limb above it. Not a fan of abseiling, but again, will do it for fossils. There are better caves in the area for fossils but didn't get around to going down them as we only had half a day, so maybe next time. 

Once at the bottom of the hole which was the opening, we went down into the actual cave. It was an amazing place; a lot of fantastic limestone formations in a small cavern with a number of other passages and holes we could go down. One of the places we found Pleistocene fossils was under the floor of the main cavern. A wide but shallow cavern was underneath that had bones cemented to the roof. Most had eroded out however. 

Another passage led down a couple of metres to a different fossil deposit which is where we collected from. A tight squeeze was needed to get through to the face of the deposit so its not a place for the claustrophobic. Heres a photo of that particular face, and some bones that had eroded out of it as well as modern animals that fall in much the same way as their Pleistocene predecessors. A layer of flowstone had formed over the face.

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The bones here were quite busted and fragmentary as many people had been in here before us and stood on them. I only collected teeth and jaws as they are much more interesting than fragmentary bones IMO. here are some of our finds:

Macropus spp. 

5d673faeda528_ScreenShot2019-08-29at12_59_08pm.png.20e0e9acb12ed46e52f2543e0b1fb0d9.png .   5d673fac6ed1f_ScreenShot2019-08-29at12_59_26pm.png.dbe6584ea379a1567cce29fb7ccdcd4c.png

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Vombatus sp. 

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Lizard, perhaps a Tiliqua sp.?

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We also found a few other things which I will post after they're identified. Also, here is a paper with some more info on the area. And note that these were collected with permission. 

Thanks, 

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3 minutes ago, Ludwigia said:

Thanks for posting. Very interesting and adventurous. Are your finds fossil or recent?

They're fossilised, Pleistocene based off the presence of species like Thylacoleo carnifex which were found by the authors of the paper I linked. 

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4 minutes ago, Foozil said:

They're fossilised, Pleistocene based off the presence of species like Thylacoleo carnifex which were found by the authors of the paper I linked. 

Cool!

 

Greetings from the Lake of Constance. Roger

http://www.steinkern.de/

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Very nice! Thanks for showing this unique fossiling site. I'd love to collect a bucket or two of the matrix and wet sift it through a stack of graduated sieves. No telling what kinds of interesting micro-fossils might be hidden in there.

 

 

Cheers.

 

-Ken

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Wow! What a unique collecting environment! Thanks for including site photos. 

 

@digit Running that material through a classifier stack would be fascinating! I'm guessing there would be mouse, frog, reptile material....

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Awesome site!

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“...whilst this planet has gone cycling on according to the fixed law of gravity, from so simple a beginning endless forms most beautiful and most wonderful have been and are being evolved.” ~ Charles Darwin

Happy hunting,

Mason

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That 's a super cool site! Looks like there's a huge concentration of bones there. Really nice jaws you found.

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Thanks all!

7 hours ago, digit said:

Very nice! Thanks for showing this unique fossiling site. I'd love to collect a bucket or two of the matrix and wet sift it through a stack of graduated sieves. No telling what kinds of interesting micro-fossils might be hidden in there.

 

 

Cheers.

 

-Ken

I thought the same, but didn't get around to doing so. Will try next trip!

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A few more specimens.

Aepyprymnus rufescens(?), the Rufous rat-kangaroo. I recommend looking this up, its adorable! 

5d689bef390b9_ScreenShot2019-08-30at1_45_33pm.png.dac2c3a53f4ba3f6f5caf3ffe862ec3a.png5d689bf202b81_ScreenShot2019-08-30at1_45_23pm.png.154cdfbfca4e6a4b6539f117938d5341.png

 

Trichosurus vulpecula (Common Brushtail Possum)

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Edited by Foozil
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Cave etiquette  is take only photos.. just sayin’

"Faith is to believe what you do not see; the reward of this faith is to see what you believe" - Saint Augustine

"Those who can not see past their own nose deserve our pity more than anything else."

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2 hours ago, Ash said:

Cave etiquette  is take only photos.. just sayin’

I would agree, but we only collected specimens that were under peoples feet, most loose things there had been crushed by people not interested in them.

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