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I have no idea what this coral or sponge is!!!


Mark fossil maniac

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This fossil was found on the beach of Lake Huron, it seems extremely old, it looks saltwater and is the most complete piece of coral I've ever found

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Maybe something in the realm of stromatoporoids?

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Edited by abyssunder
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" We are not separate and independent entities, but like links in a chain, and we could not by any means be what we are without those who went before us and showed us the way. "

Thomas Mann

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You got it guys!!! Densastroma podolicum -Silurian Actinostomatid Stromatoporoid fossil is what I found! Thank you

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On your last picture, at the top, is it full of projections or depressions?? My eyes often play tricks and I can envision it either way!!

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They are holes, depressions. It's hard to find this as a whole coral anywhere! Thank goodness for this site!20211230_091017.thumb.jpg.7e99f24d0e55506dca6505edce7662a3.jpg

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The depressions were originally bumps (mamelons). The presence of canals and astrorhiza would have caused the erosion.

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The pillars and laminae are distinguishing features in stromatoporoids. If the external surface features are present (top of specimen) then might be a 100% positive ID.

Edited by abyssunder

" We are not separate and independent entities, but like links in a chain, and we could not by any means be what we are without those who went before us and showed us the way. "

Thomas Mann

My Library

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