henry david Posted June 20, 2022 Share Posted June 20, 2022 MAH01344.MP4 This is an interesting one, it has the structure of some modern polypore mushrooms, but with larger pores, the growth pattern on the top seems similar to the layer underneath the outer shell on a ganoderma applanatum, and the size and shape is consistent with that mushroom. Any ideas or identification tips? I appreciate any response. Link to comment Share on other sites More sharing options...
Ludwigia Posted June 20, 2022 Share Posted June 20, 2022 Please tell us exactly where you found this. What stratigraphy does it originate from? What were the circumstances of discovery? Greetings from the Lake of Constance. Roger http://www.steinkern.de/ Link to comment Share on other sites More sharing options...
Fossildude19 Posted June 20, 2022 Share Posted June 20, 2022 Not a mushroom, but possibly a coral or bryozoan. 2 Tim - VETERAN SHALE SPLITTER VFOTM --- APRIL - 2015 __________________________________________________ "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...
henry david Posted June 20, 2022 Author Share Posted June 20, 2022 I found this very near to Guttenberg Iowa, walking next to a river with many stones. Link to comment Share on other sites More sharing options...
minnbuckeye Posted June 21, 2022 Share Posted June 21, 2022 In and around Guttenberg is Platteville, Decorah and Galena rock strata. They are all Ordovician layers formed from a large sea that covered the area. Mushrooms were definitely NOT part of the flora. Looks coral like to me, similar to Favosites. I don't find Favosites often in the Ordovician of Iowa. It is more commonly found in the Devonian further west of you. At least you can explore the coral possibilities and put mushroom on the back shelf Mike From The Evolution of Life on Earth 1 Link to comment Share on other sites More sharing options...
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