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Fossil Sponges From Russia


Evgeny Kotelevsky

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Ooooh, a sponge micro-photo; very interesting!

"There has been an alarming increase in the number of things I know nothing about." - Ashleigh Ellwood Brilliant

“Try to learn something about everything and everything about something.” - Thomas Henry Huxley

>Paleontology is an evolving science.

>May your wonders never cease!

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  • 10 months later...

Did you have to treat those sponges in any way (eg. acid) to get those micro photos, or do they come out of the ground like that?

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Did you have to treat those sponges in any way (eg. acid) to get those micro photos, or do they come out of the ground like that?

To find spicule-structure on my sponges, I prep them out with needles and small hammer, then I wash them in warm water and then I look for small remains of spicule-structure with magnifying glass )))

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To find spicule-structure on my sponges, I prep them out with needles and small hammer, then I wash them in warm water and then I look for small remains of spicule-structure with magnifying glass )))

So those holes are empty to begin with, they did not have to be etched with acid? Good preservation!

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So those holes are empty to begin with, they did not have to be etched with acid? Good preservation!

You can use weak acid (9% vinegar) to prep sponges out of marl. Weak acid will not destroy spicules (if they preserved on sponge surface). But I prefer to use needles instead of acid )))

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Evgeny, you quite possibly have one of the greatest (if not THE greatest) collection of sponge fossils in private hands. It's truely impressive. I love how you did the last photo in a 360 rotation.

Great to see you back!

"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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Evgeny, you quite possibly have one of the greatest (if not THE greatest) collection of sponge fossils in private hands. It's truely impressive. I love how you did the last photo in a 360 rotation.

Great to see you back!

Thanks ))))

I'm going to present all my collection in 3D )))))

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