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I found this stem or branch of a fossil found it in Rockford il on a dried river, do you have any ideas on what it could be?
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Can you help determine if these are real as described and any steps I might take to further confirm the details? [seller verbiage removed -- Staff]
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- cephalopod
- gastropoda
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True Starfish or Fake Starfish?
Lucid_Bot posted a topic in Is It Real? How to Recognize Fossil Fabrications
Howdy! I'm just wondering if this is real. I've never seen one like this. It's Moroccan, Ordovician, Asteroidea or true Starfish. Thanks for the help.-
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On Sunday, I took my once a year opportunity to get permission to enter a quarry that exposes the Galena, Ordovician rock of NE Iowa. The gentleman that owns the quarry enjoys the beer that I use as bargaining chips and it worked again!! As I approached the quarry, it became apparent that a new area was stripped of topsoil, leaving a flat bed of Stewartville Formation exposed for me to wander across. This formation is famous for the gastropod, Maclurites, which many local fossil hunters cherish such as @Bev, and it didn't disappoint. This was the easiest collecting I had done in awhile, just wandering across the exposed rock picking up it's treasures. Luck was with me last Sunday, in that this ledge was to be blasted the next day and ground into gravel! A few other gastropods were found as well as an occasional cephalopod. But the predominant fossil was that of the Maclurite. Here are just some of the loose ones found. I personally have a attraction to fossils left in matrix.
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This one came to me without any information. My best guess is some kind of Ceraurus, from a Trenton Group (Simcoe Gp?) formation in Ontario. Can anyone fill in any more detail than that for me? I know it's rough and maybe not enough features to identify it. Is the bryozoan identifiable? Is the rock distinctive enough to say which formation it might be from? I'll get better pics later if needed.
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Can anyone identify these trilobutts for me @piranha and possibly the nautiloid too, from Ellesmere Island, in the high Arctic of Nunavut? I acquired them from a local dealer because they were cheap but of course the information is not as extensive as one would like.... He had a few more things from Ellesmere also including a Maclurites-type gastropod and a segment of a larger nautiloid, kind of grotty but perhaps I should have bought them too to keep the collection together. (I could still do that) I can't find much in the way of papers online about this stuff from the little info I have except that there is Lower Ordovician rock containing Maclurites from the Bache Pen. on the E side of the island, but I can't find any Ordovician St. George Group except in Newfoundland.
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These questionable fossils were collected in eastern Iowa from the Brainard Formation, Maquoketa, Ordovician. All of the fossils seen contained pyrite or iron oxide on the surfaces, something that I am not used to in other areas of Maquoketa strata. This makes identification confusing for a few of my finds. Hopefully you can help!! #1 I suspect a trace fossil. Or maybe mineral deposit. #2 @Tidgy's Dad will be up to IDing this strophomena like brachiopod (I hope!!!) #3 Is this a craniid sp., or a bryozoan, or crania ancovered with bryozoan or pyrite. #4 This looks like a bryozoan to which something else attached and grew. Or maybe just a pyrite nodule?? The bryozoan stem goes completely through the nodule. #5
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- eastern iowa
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I’ll show my collection here. 1. Agnostida This is my only example from this order. Itagnostus interstrictus Wheeler Shale U-dig Quarry, Delta, Millard County, Utah Middle Cambrian Purchased Scale bar is 1 cm.
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My last trip exploring the Maquoketa of Minnesota, a formation that is abundant in cephalopods, provided me with a serpenticone shaped specimen that I do not recognize. Help IDing this would be appreciated. The siphuncle is not visible in this specimen. I did some infill with putty to enhance its look (in my opinion). The small repair is delineated by the red marks.
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Hi I really enjoy the Paleozoic, Stratigraphy and hunting topos for different fossil clusters and qualities. Thanks for the help already y'all seem great.
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From the album: Minnesota Ordovician Decorah Cephalopods
Above view of fragile specimen of Triptoceras lambi-
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From the album: Minnesota Ordovician Decorah Cephalopods
Triptoceras oweni - heavily bryozoan encrusted specimen. Medium sized for a Decorah Formation Cephalopod. Twin Cities Minnesota Ordovician.-
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From the album: Minnesota Ordovician Decorah Cephalopods
Typical view from above. Two specimens - one looked too odd to be a bryozoan.-
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From the album: Minnesota Ordovician Decorah Cephalopods
Triptoceras planoconvexum appear to be medium sized compared to the other Triptoceras species from Decorah Formation in Twin Cities. Rare.-
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- decorah formation
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From the album: Minnesota Ordovician Decorah Cephalopods
Very worn specimen with barely any details left.-
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I found this around the where the Cincinnati, Findlay, and Kankakee arches meet in grey clay with nothing else around it - not sure how to identify, any help appreciated.
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From the album: Minnesota Ordovician Decorah Cephalopods
The cut half which is a very thin shell filled with calcite minerals in a geode meaning it was complete hollow at the time of fossilization process.-
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From the album: Minnesota Ordovician Decorah Cephalopods
Apparently Whitfieldoceras mumiaforme lasts into Decorah Formation from Platteville formation. This specimen has barely visible septae and is very thin. Seem to have enlargement on the left side which is constant with Whitfieldoceras and a bend along a certain portion of the shell. Ordovician, Decorah Formation, Twin Cities Minnesota. Rare.-
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Found this in the Cincinnati arch along with standard brachiopods and rugose corals from Ordovician. I was thinking some sort of bryozoan? Crinoid ends don't look like this?
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From the album: Minnesota Ordovician Decorah Cephalopods
A large Endoceras proteiforme. From Decorah shale. Only a little section of the shell remains on the lower half. The segmented part are septum and the smooth part are siphuncle.-
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From the album: Minnesota Ordovician Decorah Cephalopods
Poterioceras apertum found in St. Paul Decorah Shale Spring 2023. Rare from the looks of it.-
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- decorah formation
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Howdy folks! I recently had a family trip to Ontario, and found a few rock exposures throughout Kingston to rummage around for fossils. I was digging into the Ordovician aged Gull River Fm, which has chert-like rock that I still find somewhat difficult to process. I managed to snag a little bit of rock to add to the weathering pile, and today I’ve found some interesting specimens. I’m looking at two unidentified pygidiums, and I believe I’m looking at half a Cephalon on the final slide. If anyone has literature they don’t mind sharing on the formation I’d love to read up, and I’d appreciate a little help ID’ing especially the Cephalon in question.
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This is a molt fragment of Isotelus sp. that I found in the Drakes formation in one of my usual spots. I've found isotelus pieces before, but this one is odd to me. In particular, I don't know what the lines on it are (not the cracks, I have the lines I'm talking about outlined in the pictures). I thought they might be a possible injury but I'm not sure.
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- drakes formation
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