StoneCrazy Posted October 12, 2017 Share Posted October 12, 2017 Hello! I collected this rounded stone in Southern Ohio, actually to paint on originally, and became enamored with what appears to be a fossil algae on top so kept in in my collection. Recently I inspected it through a loupe and noticed the sponge like pores for the first time. I tried to show in the photos that there is a transition or directional grain to the pores that I've seen in whale bones and sponges that washed ashore when I lived in the Pacific Northwest. It's sized at about six inches at the widest, and is a sandstone rather than the expected limestone. What do you think? Is it a sponge or a type of coral? Link to comment Share on other sites More sharing options...
Rockwood Posted October 12, 2017 Share Posted October 12, 2017 I would check the column labeled other myself. I long ago gave up trying to identify sponges though, so hang in there. Link to comment Share on other sites More sharing options...
Miocene_Mason Posted October 12, 2017 Share Posted October 12, 2017 I suspect the weathering pattern is geological, but wait for others to confirm. “...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 Link to comment Share on other sites More sharing options...
ynot Posted October 12, 2017 Share Posted October 12, 2017 Welcome to TFF! I think it is a non fossil rock. Darwin said: " Man sprang from monkeys." Will Rogers said: " Some of them didn't spring far enough." My Fossil collection - My Mineral collection My favorite thread on TFF. Link to comment Share on other sites More sharing options...
Arizona Chris Posted October 12, 2017 Share Posted October 12, 2017 Im not seeing a sponge here, but maybe - just maybe those small holes are foram molds. ---------------------------------------------------------------------------------------------------------------------------- Arizona Chris Paleo Web Site: http://schursastrophotography.com/fossiladventures.html Link to comment Share on other sites More sharing options...
Brittle Star Posted October 12, 2017 Share Posted October 12, 2017 In my limited experience I have only found sponges in flint or chalk. Interesting though. Never ask a starfish for directions Link to comment Share on other sites More sharing options...
StoneCrazy Posted October 13, 2017 Author Share Posted October 13, 2017 (edited) On 10/12/2017 at 11:26 AM, Arizona Chris said: Im not seeing a sponge here, but maybe - just maybe those small holes are foram molds. Foraminifera is an interesting concept here as I can see that possibility. I will consider it more closely. Thanks! Edited October 13, 2017 by StoneCrazy Link to comment Share on other sites More sharing options...
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