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My brother found this object in a park in Hamilton New Jersey. The rock from this area is mostly from the Jurassic and Cretaceous, but there is a small bit of rock from the Cambrian. This is the second category of disc-shaped fossil that I discussed in the first thread. There are several separate objects within the small rock, which looks somewhat similar. They are different from all of the other objects, which turned out to be imprints from crinoid stems, because they have 5 or less sections within the disk. One of my guesses is that they are some kind edrioasteroid (I'm probably wrong). The first photo shows what I think are the different samples. I will upload more photos soon. I hope that you can identify any of the tiny objects. Thank you in advance.
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- edrioasteroid
- mercer county
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Hello. My siblings and I have found several disk shaped objects in a park in Hamilton, Nj. We have grouped them into two main categories. One has more than 5 sections around the center of the object and the other has 5 or less sections. I will post the first category in this thread and the other one some time later. The rock in this area is mainly from the Jurassic and Cretaceous, but there is a small segment of rock from the Cambrian. Some of the objects in the first category seem to have the disk slightly burrowed into the surrounding rock. The objects in this category also have a smaller disc in the center of the larger one. I hope that you can identify two subjects. Thank you in advance. Sorry for poor photo quality.
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- disk shape
- mercer county
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