The Inside Of N.j. Cretaceous Coprolite

[Carl]

I'm happy this thread has turned out this way,,,I'm really getting an education here. And Carl please post your findings on AlDente source . I'm sure that many of the other members here would very much like to see the pictures and read about what you have to say

Its something,,,,,how a non academic person like me that's looking at the wide range of fossil collecting can see how interesting,,,,,,, poop,, can be

Thank you.

Will do!

[squali]

If coprolites there should be a very large number recovered.

We have to remember we are looking at a long time of biological accumulation.

Can you imagine the number of coprolites of even a hundred sharks over a thousand years?

A transgressive bed is basically collecting material that is already fossilized.

Are there shark coprolites recovered from a depositional environment like at Inversand?

I think something else has to be at play in the preservation of a fecal element.

[njfossilhunter]

It might have something to do with their diet which might cause constipation like I mentioned in a previous post,,,, another words some stool's is much harder when coming out and more likely to fossilize. AlDente in post 40 showed two picture of coprolites that was removed from a shark ,,one looked to be some what hard,,, while the other looked to soft to stay together for any length of time after leaving the body.This might have a lot to do with which one turns into a fossil.

Edited March 28, 2015 by njfossilhunter

[Piotr Bajdek]

Nice specimens!

In regard to the discussion on the origin of such structures above, because we don't know whether they are coprolites, or cololites, I think it's better to call them 'spiral bromalites'. The term 'bromalite' encloses both coprolites and cololites. The origin of the spiral specimens and the terminology were discussed in the supplementary material of one of my recent papers (Niedźwiedzki et al., 2016); take a look at the references therein; I hope it helps: https://researchgate.net/publication/301298113_Supplementary_material_-_Coprolite_descriptions

Niedźwiedzki, G., Bajdek, P., Qvarnström, M., Sulej, T., Sennikov, A.G., and Golubev, V.K. 2016. Reduction of vertebrate coprolite diversity associated with the end-Permian extinction event in Vyazniki region, European Russia. Palaeogeography, Palaeoclimatology, Palaeoecology 450: 77–90. doi: 10.1016/j.palaeo.2016.02.057

Edited May 30, 2016 by Piotr Bajdek

[doushantuo]

Thanks for that link,,Mr Bajdek

[doushantuo]

I can recommend Hunt/Lucas:

https://www.researchgate.net/publication/280716684_Classification_of_vertebrate_coprolites_and_related_trace_fossils

[JohnJ]

Nice specimens!

In regard to the discussion on the origin of such structures above, because we don't know whether they are coprolites, or cololites, I think it's better to call them 'spiral bromalites'. The term 'bromalite' encloses both coprolites and cololites. The origin of the spiral specimens and the terminology were discussed in the supplementary material of one of my recent papers (Niedźwiedzki et al., 2016); take a look at the references therein; I hope it helps: https://researchgate.net/publication/301298113_Supplementary_material_-_Coprolite_descriptions

Niedźwiedzki, G., Bajdek, P., Qvarnström, M., Sulej, T., Sennikov, A.G., and Golubev, V.K. 2016. Reduction of vertebrate coprolite diversity associated with the end-Permian extinction event in Vyazniki region, European Russia. Palaeogeography, Palaeoclimatology, Palaeoecology 450: 77–90. doi: 10.1016/j.palaeo.2016.02.057

Thanks for sharing your research.

[doushantuo]

So I wasn't the only one who noticed that

[njfossilhunter]

Nice specimens!

In regard to the discussion on the origin of such structures above, because we don't know whether they are coprolites, or cololites, I think it's better to call them 'spiral bromalites'. The term 'bromalite' encloses both coprolites and cololites. The origin of the spiral specimens and the terminology were discussed in the supplementary material of one of my recent papers (Niedźwiedzki et al., 2016); take a look at the references therein; I hope it helps: https://researchgate.net/publication/301298113_Supplementary_material_-_Coprolite_descriptions

Niedźwiedzki, G., Bajdek, P., Qvarnström, M., Sulej, T., Sennikov, A.G., and Golubev, V.K. 2016. Reduction of vertebrate coprolite diversity associated with the end-Permian extinction event in Vyazniki region, European Russia. Palaeogeography, Palaeoclimatology, Palaeoecology 450: 77–90. doi: 10.1016/j.palaeo.2016.02.057

Thank you.....And Thank you for the link to your paper. I just quickly looked it over and in the morning I will take the time to read it over when I'm not so tired ...It looks like it will be a fun read.

Best Regards

Tony