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Coprolite or Iron Concretions?


Dmgs11

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Hi,

Any thoughts on these three? Found in Big Brook, Monmouth county NJ. 

 

They were not together. Don't appear they are from a fire. The area has tons of iron concretions, but these seemed to stick out differently. 

 

Any thoughts if they may be coprolite? 

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I've collected many thousands of both marine and terrestrial coprolites and have never seen a coprolite cracked like that.  I've collected hundreds of lignitized fruits and seeds cracked like that but these specimens look much more like ironstone concretions to me.

 

Marco Sr.

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"Any day that you can fossil hunt is a great day."

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I've collected similar items after being told they were coprolites. Later I read that the common finds on that beach had once triggered a minor, false, gold rush. Eventually they all decay this way if not stored in oil. 

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