jlauriajr Posted March 10, 2016 Share Posted March 10, 2016 I found these on the Ordovician outcrop in front of my house. They were in lower/Leipers or upper Inman formation. Showing both sides and a micro shot. They are silicified. 1 Link to comment Share on other sites More sharing options...
Raggedy Man Posted March 10, 2016 Share Posted March 10, 2016 Stromatolites or maybe mineralization of sediment? ...I'm back. Link to comment Share on other sites More sharing options...
Pumpkinhead Posted March 10, 2016 Share Posted March 10, 2016 Maybe a sponge? Either that or one of the things Raggedy Man said, in my opinion. Link to comment Share on other sites More sharing options...
Twinlukers Posted March 10, 2016 Share Posted March 10, 2016 Mineral sediment is my guess as well. I have some similar type pieces you can compare Them with.. Nice finds. Link to comment Share on other sites More sharing options...
jlauriajr Posted March 10, 2016 Author Share Posted March 10, 2016 2 more microscopic views there seems to be too much order to be mineral deposit there is quite a bit of hallopora sp. pieces in the same level--not sure if it is somehow related or not Link to comment Share on other sites More sharing options...
Herb Posted March 10, 2016 Share Posted March 10, 2016 looks like bryozoans "Absence of evidence is not evidence of absence"_ Carl Sagen No trees were killed in this posting......however, many innocent electrons were diverted from where they originally intended to go. " I think, therefore I collect fossils." _ Me "When you have eliminated the impossible, whatever remains, however improbable, must be the truth."__S. Holmes "can't we all just get along?" Jack Nicholson from Mars Attacks Link to comment Share on other sites More sharing options...
jlauriajr Posted July 21, 2016 Author Share Posted July 21, 2016 (edited) I am still trying to id this bryozoan microscopic view I have looked at hundreds of photos and consulted the local surveys from northern Alabama to Ohio and still can't find this. these are some fragments I have found better view with some attached to matrix and growing on older bryozoa Middle Tennessee, Southern Highland Rim, Ordovician, top of Catheys formation/bottom of Leipers Edited July 21, 2016 by jlauriajr Link to comment Share on other sites More sharing options...
Fossildude19 Posted July 21, 2016 Share Posted July 21, 2016 Are you sure these aren't mineral? I see what appear to be a few Beekite rings. More images HERE. Maybe beekite encrusted corals, sponges, or bryozoans? Regards, Tim - VETERAN SHALE SPLITTER VFOTM --- APRIL - 2015 IPFOTM -- MAY - 2024 _________________________________________________________________________________ "In every walk with nature one receives far more than he seeks." John Muir ~ ~ ~ ~ ><))))( *> About Me Link to comment Share on other sites More sharing options...
Carl Posted July 21, 2016 Share Posted July 21, 2016 If they are fossils might they be the steinkerns of sponge galleries in some bivalve shell that later dissolved? Link to comment Share on other sites More sharing options...
erose Posted July 21, 2016 Share Posted July 21, 2016 If they are fossils might they be the steinkerns of sponge galleries in some bivalve shell that later dissolved? Nothing quite like that in those Ordovician faunas that I know of. I think we are looking at a secondary mineralization of bryozoans. And it does look similar to beekite...but different. My first inclination was they looked like speleothems. Are there voids in the rock? Weird stuff can grow within solution pockets in those limestones. Link to comment Share on other sites More sharing options...
jlauriajr Posted August 3, 2016 Author Share Posted August 3, 2016 (edited) Here are a few more microscopic views of 3 different pieces of unknown specimen. growth seems to occur around the white spherical objects I've been working on this since my op Looked at 100's of images--closest I've come is polyzoa in Great Britain if it is geological I can't find any examples of that either :-( Edited August 3, 2016 by jlauriajr Link to comment Share on other sites More sharing options...
ynot Posted August 3, 2016 Share Posted August 3, 2016 Could they be geodized somethings? Tony Link to comment Share on other sites More sharing options...
jlauriajr Posted August 3, 2016 Author Share Posted August 3, 2016 This is the largest and most complex part I;ve found so far. The matrix is encrusted bryozoa and shell pieces. Link to comment Share on other sites More sharing options...
MarcusFossils Posted August 3, 2016 Share Posted August 3, 2016 This is the largest and most complex part I;ve found so far. The matrix is encrusted bryozoa and shell pieces. P1010033 (1).JPG Nice dime! You collect coins? Website: https://www.instagram.com/paleo_archives/ --------------------------------------------------------------------------- “It is by no means an irrational fancy that, in a future existence, we shall look upon what we think our present existence, as a dream.” ― Edgar Allan Poe Link to comment Share on other sites More sharing options...
abyssunder Posted August 3, 2016 Share Posted August 3, 2016 Maybe micritic limestone . https://www.researchgate.net/figure/229263960_fig4_Fig-6-Finely-pelleted-micritic-limestone-with-'casts'-of-hopper-faced-halite-crystals " 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 Link to comment Share on other sites More sharing options...
jlauriajr Posted August 21, 2016 Author Share Posted August 21, 2016 A couple of new photos taken 60x front of specimen back of same section it appears to be an ancestrula with new zooid? growth rings Link to comment Share on other sites More sharing options...
Herb Posted August 21, 2016 Share Posted August 21, 2016 permineralized bryozoans "Absence of evidence is not evidence of absence"_ Carl Sagen No trees were killed in this posting......however, many innocent electrons were diverted from where they originally intended to go. " I think, therefore I collect fossils." _ Me "When you have eliminated the impossible, whatever remains, however improbable, must be the truth."__S. Holmes "can't we all just get along?" Jack Nicholson from Mars Attacks Link to comment Share on other sites More sharing options...
tmaier Posted August 21, 2016 Share Posted August 21, 2016 My first inclination was they looked like speleothems. Are there voids in the rock? Weird stuff can grow within solution pockets in those limestones. Yes, often there are clues in the other, non-fossiliferous, rocks. It pays to spend some time looking at the behavior of the formation. Link to comment Share on other sites More sharing options...
tmaier Posted August 21, 2016 Share Posted August 21, 2016 A couple of new photos taken 60x 0820-5.jpg front of specimen 0820-5a.jpgback of same section it appears to be an ancestrula with new zooid? growth rings It does appear to be a fossil to me, and not purely geological. Maybe a calcareous, coralline algae or one of the mysterious cousins, like Solenpora? https://en.wikipedia.org/wiki/Solenopora Link to comment Share on other sites More sharing options...
jlauriajr Posted August 22, 2016 Author Share Posted August 22, 2016 Thanks for the tip. Solenopora doesn't quite fit. Link to comment Share on other sites More sharing options...
jlauriajr Posted August 22, 2016 Author Share Posted August 22, 2016 I am fascinated by these white spherical objects--they are in 75% of my samples. 2 micro closeups 1 Link to comment Share on other sites More sharing options...
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