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Blakey

What is this? Found at Big Brook, NJ (Late Cretaceous)

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Blakey

I recently found this at Big Brook in NJ, USA. I am not sure what this is. The outer layer appears to have a spiral formation towards one end. It's just about 1 inch long (maybe a little less). Thanks for any help!

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Top Trilo

To me it resembles a gastropod shell but as far as an ID on specie or genus I don't know,

1.1 Gastropoda Shell Form | Digital Atlas of Ancient Life

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Fossildude19

Looks like a coprolite to me. 

@Carl  @frankh8147

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Top Trilo

After taking a second look, it does look like coprolite, it doesn't have the texture or the sharpness of a shell. My bad

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FossilDAWG

More specifically, it might be a shark coprolite as those have a characteristic spiral structure.

 

Don

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Blakey

Thanks for all of the information. The two things that I find odd about this fossil are

1) it has a smooth "scoop" shape on one end (best documented in the first photo).

2) the surface pattern/texture almost resembles wood.  

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Top Trilo

Coprolites come in all shapes and sizes, many things could have happened to it when it was still fresh, maybe a rock fell on the one end creating the flattened scoop.

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frankh8147

Agree with shark coprolite. Some of these specimens are completely crushed.

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abyssunder

It looks like a coprolite to me also.

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Blakey

Thanks everyone!

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GeschWhat

Sorry I'm late. As the others said, you have a really nice spiral coprolite. The texture you see is a result of the folds within the spiral valve. Those aren't always preserved. I mainly see detail like that in spirals from Morocco. 

 

 

HappyPoo2.gif

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