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Showing results for tags 'se minnesota'.
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My hunting grounds locally involve the Ordovician Galena. It has a very characteristic rock structure EXCEPT in a local quarry where everything is crystalized or preserved in odd ways. This is how most brachiopods are found. But I am here to see if this brachiopod exposes pieces of it's lophophore or whether this is just another odd preservation from this site.
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- brachiopod
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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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I found this at Root River Park about 7 miles S of Rochester, MN along the Root River. I'm new at fossil hunting and would like input on what you think it is. Limestone for sure.
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Uncommon Gastropod from the Ordovician/ Galena (Asgardaspira)
minnbuckeye posted a topic in Fossil ID
I had brought home a piece of Galena/ Ordovician matrix that had some unidentifiable critters hidden in the rock. Time was taken to extract what I am sure is a cephalopod from the matrix. Haven hunted this formation for years, I can honestly say this is the first cephalopod found exhibiting its curved features discovered by me. Attempts to ID the fossil have been fruitless, so I am asking for help! The fossil fractured during its prep revealing what I see as a siphuncle. Here is the repaired specimen:
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- asgardaspira
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I was busting up a few rocks from the Ordovician/ Galena of SE Minnesota when I noticed this unknown peeking out at me. It would be nice to understand what it is so a decision as to whether to expose more of it can be made. Thanks! By the way, it is 6 mm in length. Mike
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An acquaintance asked me to post these pictures of what he believes is a hadrosaur jaw/head. Hadrosaur digits have been found in Minnesota. I do have to say that it is a very suggestive rock, enough so where I agreed to post it. :-) It was found in Mower county, SE Minnesota, among glacial drift near Austin, MN. For Scale I have to admit that it does look like teeth. :-) The bottom side of the "teeth". Bottom of rock. Side one. Side two. Thank you for your consideration. :-)
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How much better does it get when you can have FUN and help others experience the JOY of FOSSIL HUNTING, especially the children! These hunts were both booked through Eagle Bluff Environmental Learning Center. And I have a BIG THANK YOU to @minnbuckeye because MIKE made both of these hunts very special. A while back Mike stopped and was so generous and gave me three geodes he had found - he knows I love anything that sparkles. :-) After he left, I thought how selfish of me to keep them for myself and decided that the youngest on the hunt would be able to break one. WOW! Seeing the smiles on those faces... What can I say! And I think that @minnbuckeye would agree that his gift of the geodes was best shared. :-) The very first boy, 11 years old, was the first to break a geode on the 7.10.21 hunt. He got half and three teenaged girls who were at the hunt split the other half between them very carefully breaking it as opposed to the original smashing! This was a FUN hunt! This gal just loved all of the fossils she found! I had forgotten my camera and these photos are from the guests who sent their best back to me. :-) Nice party rock that Sarah collected - lots of fossils! Sarah in the back of the "Cave Man" cave. Up close on the rocks in the Galena Formation of SE Minnesota. We were all having so much fun that by the end of the hunt I took them to a bonus spot and 2/3 of the group came back to my home to spend more time going through the fossil sandbox - kids love that thing and I've caught a few adults in my sandbox, feeding the baby goats and talking fossils. :-D Sarah's shot from the back of the cave to the front. I'm going to continue to the 8.14.21 hunt in a reply, because I think I may run out of MB for photos as a very special trilo was found!
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My last excursion to the Decorah Shale was meant to be a collection of specimens for @Tidgy's Dad, who helps me with identifications in this material. Unfortunately, the postage to Morocco has gone up exponentially (hundreds of dollars for a SMALL package) so that he will go empty handed. Here are a few things I am grappling with from that trip and hope to receive some incite from those more knowledgeable than me (so anyone!!). 1. This seems to be a cross section of a coral 3 cm in diameter. The corals frequent to the Decorah Shale are small solitary rugosa coral, having a rust color to them. Have looked for other types of coral and come up empty handed. 2. A hash plate full of crinoidal material. What are the linear objects scattered throughout the plate? Hyoliths or crinoidal? I guess while you are looking at this, any opinions on the owner to the genial spine (lower left)?
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- coral? hyolith?
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I picked up this rock while exploring a few weeks ago and noticed what looked to be an imprint of a crinoid stem in the rock. For whatever reason, I threw it in my bucket. At home, upon further examination, I came to a conclusion that this was not a crinoid imprint and was perplexed as to what it was. As you can see above, there was a big crack in the rock, self induced in order for me to see deeper into this. Here is the specimen after the rock was chipped away. The "lines" fade away as one goes deeper into the matrix until the surface becomes smooth. Next are views of the piece removed showing a tubular structure that is ribbon like, twisting and turning. Finally a few close ups of the ribbing in the initial picture. Leech like is how I would describe this, though I am aware, this is NOT a possibility, only mentioned to provide a mental thought while the images are examined.
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- galena
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Here is a tubular structure that I am unaccustomed to finding in the Galena, Ordovician rocks of SE Minnesota. All thoughts are welcomed!!!
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I had the pleasure of visiting a well known collector in SW Wisconsin a few weeks ago. His home is almost as nice as any museum I have ever visited. He showed us some beautifully crystalized stromatolites that were collected in SE Minnesota. Hints were given as to where to find such specimens. So naturally, I had to find myself an example. I am just not sure if these are just geological and not biological. I hate to question a very knowledgeable man, but obviously I am. Opinions are welcomed. Mike
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Two nights ago, a local farmer called me all excited and wanted to show me the fossils he found in the cow pasture. The local TV station had already aired a segment on his finds. This is a view of his farm. The location of finds were behind the buildings up on the hill This is what it looked like as we approached. I explained the geology to Bill. The upper rock layers were Platteville/ Ordovician underlain by sandstone. I told him there was nothing with "teeth" way back then. Everything was covered in a sea. We live in a driftless area, meaning the glacial advancement did not touch this area. So the teeth would likely be ice age to present. We then went in to look at his findings.
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My last excursion into the fossiliferous rocks of SE Minnesota turned up this small plate of crinoidal material. I kept it because the one center piece looks a bit like a small crinoid cup to an uneducated eye (mine). This is TINY, about 3 mm in width. Cup?? If so, any genus/species to attach to it. Thanks for looking. @crinus Mike
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On my Sunday exploration, I came across a cliff that exposed something I had never seen before. These specimens were in a very narrow band (4 inches thick) and the hard limestone reminded me of Maquoketa as opposed to Galena. They have a spongish look to it but they also remind me of a recepticulite, similar to Tetragonis sulcata. I forgot my size marker. These are about thumb size if you have short stubby thumbs like me!!
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- galena ordovician
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I have looked at this piece for about 1 week and my opinion changes from a crinoid stem and calyx to a crinoid stem and broken gastropod and back. So I will now defer to anyone visiting this post to leave their opinion seeing I can't make up my mind. I have both specimens marked.
