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Unusual find of putative Placoderm Fossil at Penn Dixie


Biotalker

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At the “Dig with the Experts” earlier this month at Penn Dixie, I found this interesting surface fossil on a block that the on location experts seemed to agree was a placoderm fossil. Approximately 5 inches (12.5cm), it is thin, pigmented and has intermittent perforations or pustules. In an adjacent pile, another more extensive and remarkable set of fossil strips like this presumptive placoderm were found by another rock buster. Anecdotally, it was remarked by staff that these two putative placoderm blocks were excavated from the “same region” of the pit as the apparent Dunkleosteus jaw discovery.

 

 

 

Perhaps just a coincidence, but nonetheless an interesting mystery.

696085371_PDPlacowholecrop.jpg

50555902_PDPlaco1crop.jpg

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Nice find, Michael!

Glad you had some success out there.  :)

    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  

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

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

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Awesome find! Penn Dixie is getting better and better!

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5 minutes ago, HynerpetonHunter said:

Awesome find! Penn Dixie is getting better and better!

 

 

Not sure the place itself is getting better, (It has always produced great finds!)  or that people just are recognizing the fossils better.  ;)

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    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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A friend of mine was there last week. They are actually digging a bit lower than the classic trilobite layer now, but they may need to dig a relief trench for drainage as it is now well below the water line. The deeper cut is likely resulting in some more placo finds now.

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...How to Philosophize with a Hammer

 

 

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  • 1 year later...

Here is a view of the much bigger piece of placo skin that was found in the neighboring block. It is much bigger and I would guess it is on the order of at least 12 inches.

placo block 2 crp.jpg

placo block 3 crp.jpg

placo block 4 CRP.jpg

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@Biotalker

 

Wow! Another fantastic piece, Michael!

Thanks for posting it.

    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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Not trying to give impression that I found these big tracts of placo skin. These were found by a bright and energetic young fellow (I believe in high school last year) who was breaking rock in a pile next to mine (and gave me permission to photograph). 

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Looks like you've got associated pieces of a reasonably-sized Holonema. This is pretty fantastic.

 

Edit: not a correct ID. Holonema has striated ornament. Maybe Protitanichthys?

Edited by jdp
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