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Indiana Nodule


Rockaholic

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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.

 

1.JPG

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I'm not seeing the concentric grooves/lines that you usually see in fish scales. :unsure: 

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

   MOTM.png.61350469b02f439fd4d5d77c2c69da85.png      PaleoPartner.png.30c01982e09b0cc0b7d9d6a7a21f56c6.png.a600039856933851eeea617ca3f2d15f.png     Postmaster1.jpg.900efa599049929531fa81981f028e24.jpg    VFOTM.png.f1b09c78bf88298b009b0da14ef44cf0.png  VFOTM  --- APRIL - 2015  

__________________________________________________
"In every walk with nature one receives far more than he seeks."

John Muir ~ ~ ~ ~   ><))))( *>  About Me      

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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 

 

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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

   MOTM.png.61350469b02f439fd4d5d77c2c69da85.png      PaleoPartner.png.30c01982e09b0cc0b7d9d6a7a21f56c6.png.a600039856933851eeea617ca3f2d15f.png     Postmaster1.jpg.900efa599049929531fa81981f028e24.jpg    VFOTM.png.f1b09c78bf88298b009b0da14ef44cf0.png  VFOTM  --- APRIL - 2015  

__________________________________________________
"In every walk with nature one receives far more than he seeks."

John Muir ~ ~ ~ ~   ><))))( *>  About Me      

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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 

 

 

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Another great Indiana find, congrats!....especially glad Jack was able to put a name on it. Regards, Chris 

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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. :unsure: 

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. 

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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. 

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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. :unsure: 

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.

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13 minutes ago, Rockaholic said:

This fish scale may demonstrate my initial confusion

 

3190110439_b6d3b2b840_m.jpg

 

 

Sometimes, the concentric lines are there, but they can be very hard to make out. ;) 

 

    Tim    -  VETERAN SHALE SPLITTER

   MOTM.png.61350469b02f439fd4d5d77c2c69da85.png      PaleoPartner.png.30c01982e09b0cc0b7d9d6a7a21f56c6.png.a600039856933851eeea617ca3f2d15f.png     Postmaster1.jpg.900efa599049929531fa81981f028e24.jpg    VFOTM.png.f1b09c78bf88298b009b0da14ef44cf0.png  VFOTM  --- APRIL - 2015  

__________________________________________________
"In every walk with nature one receives far more than he seeks."

John Muir ~ ~ ~ ~   ><))))( *>  About Me      

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