Rockaholic Posted January 2, 2017 Share Posted January 2, 2017 This is a Pennsylvanian age Mazon Creek type nodule found in Indiana.It may be plant material that is decomposed beyond recognition but thought I’d post it to see if anybody thought otherwise.I haven’t found any fish scales in this location but wondered if this might possibly be a scale. Link to comment Share on other sites More sharing options...
Fossildude19 Posted January 2, 2017 Share Posted January 2, 2017 I'm not seeing the concentric grooves/lines that you usually see in fish scales. My first thought was a Cyclopteris sp. leaf. Maybe the nodule guys will have more precise info. @fiddlehead @RCFossils @fossilized6s @Plantguy Neat find - Nice detail in it. Regards, 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...
fiddlehead Posted January 2, 2017 Share Posted January 2, 2017 Actually, though poorly preserved it does still shows pollen (the golden material) in shortened rows radiating from a central point. It appears to be a pollen organ of a medullosalean pteridosperm (seed fern) called Dolerotheca. Do to poor preservation of the fossils they have not yet been broken into species. They have only been broken into three different forms based on pollen structure. It is thought without direct evidence, they are the pollen organ for some type(s) of alethopterid. Hope that helps, Jack Link to comment Share on other sites More sharing options...
Fossildude19 Posted January 2, 2017 Share Posted January 2, 2017 2 minutes ago, fiddlehead said: Actually, though poorly preserved it does still shows pollen (the golden material) in shortened rows radiating from a central point. It appears to be a pollen organ of a medullosalean pteridosperm (seed fern) called Dolerotheca. Do to poor preservation of the fossils they have not yet been broken into species. They have only been broken into three different forms based on pollen structure. It is thought without direct evidence, they are the pollen organ for some type(s) of alethopterid. Hope that helps, Jack Thank you for weighing in on this Jack. I always learn something new when you post. Kind regards, 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...
Rockaholic Posted January 3, 2017 Author Share Posted January 3, 2017 1 hour ago, Rockaholic said: It's always enlightening to see these Indiana flora fossils through your eyes. Thanks again Jack 21 hours ago, fiddlehead said: Actually, though poorly preserved it does still shows pollen (the golden material) in shortened rows radiating from a central point. It appears to be a pollen organ of a medullosalean pteridosperm (seed fern) called Dolerotheca. Do to poor preservation of the fossils they have not yet been broken into species. They have only been broken into three different forms based on pollen structure. It is thought without direct evidence, they are the pollen organ for some type(s) of alethopterid. Hope that helps, Jack Link to comment Share on other sites More sharing options...
Plantguy Posted January 4, 2017 Share Posted January 4, 2017 Another great Indiana find, congrats!....especially glad Jack was able to put a name on it. Regards, Chris Link to comment Share on other sites More sharing options...
Rockaholic Posted January 4, 2017 Author Share Posted January 4, 2017 On 1/2/2017 at 10:24 AM, Fossildude19 said: I'm not seeing the concentric grooves/lines that you usually see in fish scales. My first thought was a Cyclopteris sp. leaf. Maybe the nodule guys will have more precise info. @fiddlehead @RCFossils @fossilized6s @Plantguy Neat find - Nice detail in it. Regards, Thanks Tim.I briefly researched fish scales and found that though it appears that the concentric pattern you described is the most common pattern found in fish scales, some fish scales also exhibit the same pattern as the lines in this fossil. Link to comment Share on other sites More sharing options...
Rockaholic Posted January 4, 2017 Author Share Posted January 4, 2017 9 hours ago, Plantguy said: Another great Indiana find, congrats!....especially glad Jack was able to put a name on it. Regards, Chris Thanks Chris.I was a little reluctant to post this piece wondering whether it was identifiable. Link to comment Share on other sites More sharing options...
Rockaholic Posted January 4, 2017 Author Share Posted January 4, 2017 On 1/2/2017 at 10:24 AM, Fossildude19 said: I'm not seeing the concentric grooves/lines that you usually see in fish scales. My first thought was a Cyclopteris sp. leaf. Maybe the nodule guys will have more precise info. @fiddlehead @RCFossils @fossilized6s @Plantguy Neat find - Nice detail in it. Regards, Spent a little more time looking into fish scales this morning and it does appear that the dominant feature in fish scales, even if they also exhibit a radiating line pattern, is the concentric circle pattern.Thanks again. Link to comment Share on other sites More sharing options...
Rockaholic Posted January 4, 2017 Author Share Posted January 4, 2017 This fish scale may demonstrate my initial confusion Link to comment Share on other sites More sharing options...
Fossildude19 Posted January 4, 2017 Share Posted January 4, 2017 13 minutes ago, Rockaholic said: This fish scale may demonstrate my initial confusion Sometimes, the concentric lines are there, but they can be very hard to make out. 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...
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