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Concretion? Placoderm?


Crazyhen

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I honestly don't think there is enough exposed to even hazard a guess at what this might be. :( 

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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  

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

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I agree with jdp, there seems to be curved lines on the shell part, looks like a clam or brach. It would be good to look at the shell part and the small part at the left bottom corner that looks like a ammonite or brachiopod with those small circles with a microscope.  maybe the texture and those small circled items will help with the id. Packy

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I don't disagree with jdp; certainly there is not enough of the fossil (or fossils) exposed to be sure of the ID.  My comment about prepping was based only on the speculation that it would be a shame to ruin a potentially rare fossil.  On the other hand it would be unfortunate to spend a lot of money to professionally prep a group of crushed brachiopods.

 

Don

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Got more close up photo.  There are some spikes on the lesser parts of the fossil but no spikes on the main plate.

F8CE7400-1000-496E-87D5-EE364C306C49.png

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I agree that the big one looks like a productid brachiopod. 

Could the others be arthropod parts? 

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MOTM.png.61350469b02f439fd4d5d77c2c69da85.png.a47e14d65deb3f8b242019b3a81d8160-1.png.60b8b8c07f6fa194511f8b7cfb7cc190.png

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On 3/14/2018 at 9:21 AM, Crazyhen said:

You can see the spikes here

E9DC67CD-BEBF-4CC6-81A8-456C1387BBF3.png

These appear consistent with brachiopod plications to my eye. A possible aid in identification may be in the repeating sequence of nodules on the lower specimen.

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Unfortunately this does not appear to be a placoderm to me. The head shield on Placoderms is generally organized into seperated plates that grow independently. I don't see any indication of that here, it appears to be just one large piece. I think this specimen is an assemblage of invertebrates, possibly a productid brachiopod amongst other brachiopods and arthropod parts.

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On 3/14/2018 at 9:20 AM, Crazyhen said:

CDAFAEAA-9F2A-4EE3-B789-239C08BC22D8.png   CDAFAEAA-9F2A-4EE3-B789-239C08BC22D8.thumb.png.9c557b39248198e42aaa0b53d3e7bf3a.png

 

 

This one looks like a bivalve, to me.  :unsure: 

 

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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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also to me :headscratch:

" 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

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