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JerseyGirl

Ramanessin finds

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JerseyGirl

1. Coral? Urchin? 

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JerseyGirl

2. Funky fragment...

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JerseyGirl

3. Whose tooth? Sawfish?

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Jeffrey P

I agree with John. The first piece looks like weathered rugose (horn) coral- probably Devonian or Silurian brought down by a glacier during the Ice Age..

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JerseyGirl

Thanks!

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JerseyGirl

4. Tooth fragment? Crustacean segment? Both edges are serrated; a cross section would be a demilune shape.

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JerseyGirl

5. Spine? Tooth? 

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fossilsofnj

  both are part of the claw of Protocallianassa sp. or ghost shrimp. Here's a picture of an articulated claw from Big Brook to compare to. Very common in the NJ streams.

 

john

 

 

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JerseyGirl

Perfect picture-- I see both parts. Thanks. A few more coming before I put my finds away...

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Jeffrey P

Nice shrimp pieces there. Because of stream wear those serrations have typically worn off. Nice to see one with the serration still present. Congrats.

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JerseyGirl

6. Just a funky rock? The textured side is the convex side (overall shape is a curved plate). I can't see any suggestive texture to the edge so I'm guessing this is just a curiosity?

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Trevor

Looks like sludge. Seems a little too thick to be a scute of any type. Well, at least it is good to always pick up something even if you do not know what it is, might be a fossil.

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Plax

albulid jaw frag sans teeth? (something like parabula casei?) guessing

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FossilDAWG

If you want to have your labels up-to-date, Protocallianassa mortoni is now named Mesostylus mortoni.

 

I agree with Plax that your last specimen may be a worn albulid mouthpart.

 

Don

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fossilsofnj

 Thanks Don, I was not aware of that change .

john

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FossilDAWG

It is hard to keep up with all the taxonomic revisions.  Here's a link to the paper that discusses the reassignment to Mesostylus.

 

Don

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