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Paul McLain posted a new activity comment 3 years, 10 months ago
3 years, 10 months ago3 years, 10 months agoThat line pattern is called radial and is typical of corals.
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Paul McLain posted a new activity comment 3 years, 10 months ago
3 years, 10 months ago3 years, 10 months agoIt is a rugose coral. I was able to zoom in on the end.
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Paul McLain posted a new activity comment 3 years, 10 months ago
3 years, 10 months ago3 years, 10 months agoBut nothing crossing the rings?
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Paul McLain posted a new activity comment 3 years, 10 months ago
3 years, 10 months ago3 years, 10 months agoDoes the broken end have a radial pattern (spokes on wheel)? If so, could be a coral and if not it could be a cephalopod.
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Paul McLain posted a new activity comment 3 years, 10 months ago
3 years, 10 months ago3 years, 10 months agoThis could be an internal cast of a Brachiopod. Shell fills with sediment and dissolves away leaving behind a replica of the inside of the critter rather than the outside. These internal casts are called steinkerns.
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Paul McLain posted a new activity comment 3 years, 10 months ago
3 years, 10 months ago3 years, 10 months agoThis looks like a bryozoan
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Paul McLain posted a new activity comment 3 years, 10 months ago
3 years, 10 months ago3 years, 10 months agoThat looks like another Spirifer fossil- Spirifer connicus. Looks like a mold that was filled with sediment and recrystallization has occurred on the margins. The curved line could be a shell fragment that is on edge.
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Paul McLain posted a new activity comment 3 years, 10 months ago
3 years, 10 months ago3 years, 10 months agoYou are welcome. Devonian Paleontology of New York by David M Linsley is a great source (very thick book with lots of images). It is out of print but shows up on Amazon from time to time. These fossils are both Spirifers but there are some differences in shell morphology. The first fossil has a more rounded shell and not much in the way of tips…[Read more]
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Paul McLain posted a new activity comment 3 years, 10 months ago
3 years, 10 months ago3 years, 10 months agoThose are for the first and fifth pictures respectively
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Paul McLain posted a new activity comment 3 years, 10 months ago
3 years, 10 months ago3 years, 10 months agoPossibly Spirifer mucronalus
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Paul McLain posted a new activity comment 3 years, 10 months ago
3 years, 10 months ago3 years, 10 months agoThis is possibly Spirifer concinnus
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Paul McLain posted a new activity comment 3 years, 10 months ago
3 years, 10 months ago3 years, 10 months agoBeautiful piece! Looks like a concretion not a fossil
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Paul McLain became a registered member 3 years, 10 months ago
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Paul McLain posted a new activity comment 3 years, 10 months ago
3 years, 10 months ago3 years, 10 months agoLooks like limestone which is made of calcite. Calcite is soluble and dissolves in acid which is what the holes are suggesting. Try putting some weak acid on it to see if you get a reaction. Quartz is harder and not soluble and therefore will not react to acid.
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Paul McLain posted a new activity comment 3 years, 10 months ago
3 years, 10 months ago3 years, 10 months agoThey are corals and referred to as Petoskey Stones