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What Are These Fossils?


LizardLady1995

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My brothers and I found them and I've never had them identified. If you know please tell me! Thank you!!!!post-18529-0-91422900-1432962924_thumb.jpgpost-18529-0-49514500-1432962929_thumb.jpgpost-18529-0-00787800-1432962934_thumb.jpgpost-18529-0-29500200-1432962936_thumb.jpg

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Welcome to the forum. Those are some nice looking cephalopods. The first one is a nautiloid and the second and last are ammonites. Can you post an end view of the third fossil? It may be a coral. You will get more and maybe more detailed answers if you post these on the "fossil identification" sub-forum. Also something for scale to show the size as well as information about where they were found to give them an age. Thanks for showing your finds.

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yes! thank you sooo much!!! i'll post another of #3 in the morning, a geologist friend of my family's swears it's a dinosaur bone, but i'd like to know for sure!

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LizardLady - I think your geologist friend is right: the 3rd specimen looks like a hunk of dinosaur bone (the inner bone structure, not an external surface you could identify more specifically). People like to cut and polish them, because they're often well-silicified. My guess would be that it's from the late Jurassic Morrison Fm. of the West somewhere.

Although a lot of people who post pics on FF like to use shiny dimes or quarters for scale, I strongly recommend a ruler, because it's easier to use.

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howard, the first and last were found in northern utah, the second was found in eastern idaho, and the third was found in colorado/wyoming area

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I'm not seeing ammonites in the second photo, I see sections through solitary corals, probably Paleozoic rugose corals.

"Northern Utah" is a big place, with rocks of every possible age. The same is true of your other locations. Without something more precise, such as a nearby town, they don't help narrow down the possible age of the specimens.

Don

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I am guessing the third picture is a Devonian Nautiloid. I would need more pictures from different angles to be more definite. As they said a better location might allow us to get a more exact information on the geological age.

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I see horn corals in the second photo. Number three is likely a chunk of dinosaur... not identifiable beyond that.

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