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Showing results for tags 'Minnesota'.
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From the album: Coleraine Formation Fossils
© Irongiant97
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From the album: Coleraine Formation Fossils
© Irongiant97
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From the album: Coleraine Formation Fossils
© Irongiant97
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From the album: Coleraine Formation Fossils
© Irongiant97
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From the album: Coleraine Formation Fossils
© Irongiant97
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From the album: Coleraine Formation Fossils
© Irongiant97
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From the album: Coleraine Formation Fossils
© Irongiant97
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From the album: Coleraine Formation Fossils
© Irongiant97
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From the album: Coleraine Formation Fossils
© Irongiant97
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From the album: Coleraine Formation Fossils
© Irongiant97
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From the album: Coleraine Formation Fossils
© Irongiant97
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From the album: Coleraine Formation Fossils
© Irongiant97
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From the album: Coleraine Formation Fossils
© Irongiant97
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From the album: Coleraine Formation Fossils
© Irongiant97
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From the album: Coleraine Formation Fossils
© Irongiant97
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Found this on a river gravel bar today and southern Minnesota. The river has both Cretaceous and glacial deposits. This however looks modern - but what is it?
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Hello again everyone! Ever since I found that first large piece of (probably) petrified wood I've been looking for more every time I'm near gravel. Luckily for me, my parents have a small gravel pit on their property which seems to be producing quite a bit of this material. The pictured piece has the most distinctive figure and agate carrying the same banding throughout. Burts bees chapstick (2.75 in/6.96 cm tall) is for reference, as I cannot find my ruler or tape measure.
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- coleraine formation
- cretaceous
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Seem to be two different group (I'm talking about the larger shells not Sowerbyella minnesotensis) but I'm not sure. Top rows appear to have wave like ripples described as Bellimurina charlottae. From Southeast Minnesota in solid beds of limestones associated with Decorah Formation. I wish I have one showing inside of shell hinges.
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Found on a rive gravel bar in southern Minnesota. Sediments in the area include glacial till deposits over cretaceous sea mudstone and sandstones. I know its the third molar but the small size caught my attention. Could it be from an ancient/paleo horse?
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This is a rock that I found in the water at the bottom of the Saint Croix. I’m trying to decide if the fossil itself are actual fossils or are they trace fossils. I don’t think it’s a worm tunnel and appears to be at one point possibly one complete bone. However, I am very open to whatever anyone has to say on this website. I have posted it on the Great Lakes rocks and minerals page on Facebook. I do not have an SLR camera. And that could possibly be the reason. It’s hard to tell.
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Hello, everyone; This is a hash plate from the lower Decorah Shale of St. Paul, Minnesota. The central item in the photos is a thin dark fossil with crenulated segments. It appears that the fossil forms a nearly complete perimeter, defining a cross-section that seems to be uninterrupted on the side in the block but pinched into a bilobe on the side facing away from the block (either natural or crushed into that shape from a cylindrical or oval cross-section). Where the lobes pinch there is what appears to be a sediment-filled longitudinal gap. The scale bar has colored alternating millimeters, so we're looking at something a few millimeters across. My immediate thought was that this is phosphatic, as it is preserved similarly to trilobite fragments in the same plate (and in the Decorah in general). I can rule out most of the common groups immediately based on the apparent composition and general shape (sponges, corals, bryozoans, brachiopods, mollusks, and echinoderms). Because of the similarity to trilobite preservation, I first thought arthropod, but it certainly doesn't appear to be trilobitic. Obviously it's not an ostracode. I have very little experience with eurypterids but it doesn't seem like them, either. The other thing I've been considering is a machaeridian worm fragment, which would explain the apparent longitudinal gap and bilobed cross-section, but that crenulation thing is curious. Would any of you have any thoughts on this object?
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I peaked down while fishing in southeast Minnesota and this interesting rock or maybe fossil caught my eye. This is limestone bluff country. Please share your thoughts on whether or not it’s a fossil and if so, what type it might be.
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Hello! I stumbled across these bones while fishing in southeastern Minnesota. My guess is that they are human. I only ever have stumbled upon small marine fossils in the area. I picked it up assuming it was a cephalopod but notice quickly that wasn’t the case. Any ideas? After a quick rinse and some pictures I put them back where I’d found them, eroding out of a rocky bank.
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Found by a friend on a Southern Minnesotan river gravel bar. Sediments in the area include everything both glacial till deposits and cretaceous sea mudstone and sandstones. although, I suspect this is modern.
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I found a couple of fossils this summer in Rochester Minnesota at Quarry Hill nature center. I'm wondering if anyone regonises some of them. They are all Ordovician in age. 1. Unknown 2. Trilobite? 3. Trilobite? 4. Trilobite for sure. Anyone know the genus or family 5. Trilobite? 6. Shell or something else?
