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I found this along a riverbank in central Minnesota. The part that I identified as the head is about 4cm long, from the beak tip to back of head. It seams to be a small field bird or maybe just a rock... any help?
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I found it yesterday, comes from the Coleraine formation of northern Minnesota. Im not sure if it’s a fossil like maybe a burrow, possibly a bone, or just a plain concretion (the concretions here often take on weird shapes).
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- coleraine formation
- concretion
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This was found on a river gravel bar in southern Minnesota. There are glacial gravel deposits in the area. I believe it may be a piece of tusk bark (the outer bark or cementum) Thoughts?
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Is this a rock or a rock with a fossil in it???
BlueSkySky17 posted a topic in General Fossil Discussion
I found this today while out side on a river bed. The part i found it at is usually not seen & covered by water but the river is unusually dry so i found it on an exposed part. I’ve tried reverse image search & using a rock identifier but can’t find anything that looks similar besides other kinds of fossils. I’m really interested in learning what it is!!! i live in southern minnesota. -
I found this in moose lake MN looking for agates was curious what it might be thought possibly tiny sand dollar
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Found several of these on a beach in Grand Marais, MN on Lake Superior. The light colored part is a bit rougher feeling and the red/maroon knobs or nodules are quite hard and smooth and raised. I can’t find anything on them…someone mentioned in another forum possibly Rapakivi Granite or Granite Mica Schist but I think they seem a bit different than the images I saw of those. The largest one has a few tiny pockets of crystals. Thoughts?
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I found this rock finger it even has the rock finger print so clear you can scan it
DPING3312 posted a topic in Fossil ID
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- banded chert
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From the album: Brachiopods of Platteville/Decorah Twin Cities Minnesota
Specimen on the Left is bought online, from Wisconsin Mifflin Platteville Formation. Campylorthis deflexa is the middle one with Rostricellula minnesotensis Leftmost. Oepikina minnesotensis is rightmost. The specimen on the right is the closest Minnesota mifflin Campylorthis deflexa like specimen that I could find. It is darker color rock so its harder to see good textures but if you look closer toward the edge you can see where ribs are which makes it more coarse than the much more numerous Strophomena and Oepikina which are distinct characteristic in Twin Cities bed.-
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- campylorthis deflexa
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From the album: Brachiopods of Platteville/Decorah Twin Cities Minnesota
All sources had says there are only two genus of the family of this particular brachiopod and Protozgya and Rostricellula is listed for Platteville Formation. Protozyga is too different and much weaker ribs structures by comparations.-
- brachiopod
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From the album: Brachiopods of Platteville/Decorah Twin Cities Minnesota
Like Anazyga recurvirostis, A. plinthii tend to prefer muddy limestones and is locally abundant where found in Twin Cities. -
From the album: Brachiopods of Platteville/Decorah Twin Cities Minnesota
Flatter than A. recurvirostis and a bit bigger.-
- anagyga plinthii
- anazyga
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From the album: Brachiopods of Platteville/Decorah Twin Cities Minnesota
Very recently in 2023 paper came out that basically places all Zygospira earlier than Mayville/Richmondian in genus Anazyga. Cinnicinntea website also had name change for Anazyga recurvirostis since it also extends into maysville formation. The Decorah Formation Twin Cities can have a lot of those but oddly enough to me they are very specific to muddy limestone as I never find them in the weaker shales for unknown reasons. One of the tiniest Decorah Formation Brachiopod species I have ever found, tiny enough to balance on eraser end of pencil. Compare to the other Anazyga species it is much smaller and more inflated in shape.-
- anazyga
- anazyga recurvirostis
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From the album: Brachiopods of Platteville/Decorah Twin Cities Minnesota
Those are the closest specimen I could find that I think is Anazyga lebanonensis. Described as longer in length than the other two Anazyga species from Decorah Formation.-
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- anazyga lebanonensis
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Hi everyone! I was in SE Minnesota recently, looking through limestone outcrops where I have found cephalopods on a previous trip to Mystery Caves, MN. While looking for more cephalopods during my most recent trip to Fillmore County (and finding a few) I found this piece shown below. The fossil is likely Ordovician aged, as is common in SE Minnesota. The formation I am less sure about, but if I had to make a good scientific guess, it is the Galena formation. My question is if this is a cephalopod fossil that is just heavily eroded, of is this just a cool rock? I decided to also flip the fossil with my hand to better see the ends. Thanks for the help everyone.
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- cephalopod
- identification
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Plant impressions i found in material from the Coleraine formation of Northern Minnesota, which dates to 100-90mya, i confirmed with a paleontologist that these are first known plant impressions ever found up here which has me excited but neither of us know anymore than that theyre plant impressions, can anyone here maybe give more specific information from my pictures? i hope these pictures are good enough, i donated it for further study so I can’t get more. Even if you can’t ID them i still want to know what you guys think!
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- cenomanian
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Hi everyone! Longtime human recently turned into amateur fossil hunter. I currently am in the Twin Cities in Minnesota, and have been for the past 5 years. I've been enjoying lots of the beautiful nature the state has had to offer in my downtime, even during the winters which are not as bad anymore. I will say that I have always loved paleontology! That, marine biology and astronomy are what propelled my love for science, and what have pushed me to pursue a PhD in Chemistry. I never knew fossil hunting was an activity anyone can do, or even possible to do, until earlier this past summer. I had an awesome trip to the beach with family, and while everyone swam, I would walk the shoreline for hours looking for shells of different sizes, colors and species for almost a whole week. Toward the end of my trip, I went to a marine biology museum and talked to some of the curators and learned that fossil shark teeth are a usual find by beachcombers, but usually you had to have an idea of the shape or accidentally bump into it. I was so thrilled to learn that was possible, so I made it my objective to at least find one tooth by the end of the trip! And I am glad to say that I found quite a few in a couple of hours of trying! I even found a few other fossils (a small piece of soft shell turtle carapace, a crab claw, not shown) Since then, I've been trying to do some research when I can (again, graduate student so I have other research duties!) and try to explore the natural history of Minnesota. I've found the broken up pieces of braciopods shells everywhere on the Platteville limestone on the Mississippi River, as well as bryozoans, a few gastropods and cephalopods, and, as my username implies, a whole slew of crinoid segment and columnals! Crinoids just speak to me, and I find those circular wonders everywhere! Most recently, I recently went to a trip to SE Minnesota and met up with a well known Forum member and went hunting for giant gastropods. It was a super success! Even if there was certain fossils we couldn't remove. That's a little about me, and I'm looking forward to learning more from everyone around here! I'm hoping to get help with FossilID for some things that I have found, and maybe connecting with others that know the area or neighboring states like Iowa! I would love to get a general idea of where to hunt, and go on more adventures and make some friends! If you'd like to see some of my finds, I'm more than happy to post some of those here as well
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- introductions
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Proboscidean from Southern MN gravel pit on Minnesota river. Mammoth or Mastodon? The acetabulum (socket) is approximately 7" in diameter. Sorry for lack of scale
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I found this in material from the Coleraine formation of Northern Minnesota, which dates between 100-90mya, which was part of the east shore of the Western Interior Seaway. So far i know it’s reptilian but I’m wondering if anyone can give me a more specific identification. The exposed part is about 2.5-3cm long.
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- cenomanian
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Hi all, I found this in far northern Minnesota near a river. The circle is on both sides of the 2" thick rock, so I am assuming that a cylinder extends through it. After looking at images online, I am thinking that it might be a fossilized tubeworm, but none of the photos that I've seen quite match. Northern Minnesota has obviously had a lot of glacial activity in the past (possibly Blackduck Formation in the location found), and this area has Neoarchean bedrock. Thank you for any information that you can provide!
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I'm currently working on a construction project in Minneapolis, MN. We uncovered some bones about seven feet down while excavating in the street. They are very dark brown. Help on ID would be appreciated. I know they're not fossilized but seem to me to be fairly old. Maybe Buffalo or Cow? Thanks in advance.
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I found this rock (far Southwestern Minnesota) by a river in a pile of rocks placed their by the city. It’s possible it just came from construction and isn’t a fossil at all. But it’s also possible it was naturally occurring in the river as it was down near the water and the river has been a lot lower than normal. I have zero expertise with fossils, and was wondering if anyone recognized this as something. The “fossil” has 9 identifiable segments of concave rectangles all the same width and length, that curve around the rock. Any comments are appreciated!