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Anyone know about this piece ?
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Hi, please help identify this item found along Arkansas river next to Jefferson Arkansas. Thank you
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3 ft Arkansas Mississippian Era Nautilus Excavation
NWARockhound posted a topic in Fossil Hunting Trips
I recently took a trip to a section of the Fayetteville Shale (Mississippian Era) which I've had good luck with before. I could not anticipate what I would actually find this time, though! I've previously found orthocone nautilus fossils 3-8inches in size, but this one was just unbelievable. I believe it is a Rayonnoceras solidiforme. I am absolutely ecstatic about my 3 footer, to say the least!! I have never found another fossil even remotely in the same ballpark as this one. This is most of the fossil. There is still at least one more part of the tip in the shale, but it took me about three hours to dig this up, and my hammer swinging arm needed a break! I was getting a bit loose and inaccurate in my swings, and didn't want to break or damage the tip. I will be back in about a week with a sledge and chisel to get the rest. I've never regretted buying the 16oz pointed tip Estwing more than I did yesterday, lol! Not quite the best tool for splitting hard shale, but I made it work. The tip of this chunk closest to my hammer was just barely visible poking out of the shale. I wish I took a picture before I started digging, but I honestly didn't even think this was a fossil until I got it out. Anything in the shale that isn't an obvious concretion is worth checking out though, and it sure paid off! I then saw this piece underneath, and it was quite clear what I had found. The very visible siphuncle + curve to the stone told me all I needed to know. I then assumed I'd find another piece or two of this giant, but I was to be very, very pleasantly surprised! After removing the second piece, it was clear there was still more waiting for me. This piece alone is larger than any other nautilus I've found in the Fayetteville Shale. This fossil is currently over 3ft long, and I am looking forward to getting what's left of it. The shale kept getting harder and harder as I excavated further down, and the remaining part(s) are currently under a bit more than a foot of shale, so I'm not even remotely worried anyone else is going to dig it out. This was the last piece I excavated from the shale.
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I found this the other day at a creek in Northwest Arkansas in Benton county. Closer to the Missouri line. Any help would be greatly appreciated. Thank you!
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Here's one that I came across while walking in the woods near a river. The shape caught my eye so I picked it up. Is it a Petrified bone, or just a rock?
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North Central Arkansas; clam shell, but what compressed it?
casadelshawn posted a topic in Fossil ID
Got this clam with a mixed lot of fossils recently; this would normally go in the "leaverite" pile, but something odd caught my eye. I'm pretty good with Rorschachery, however, I'm wondering if this one's been bitten. It's about 5" long overall and has a line running through both sides that makes me wonder if something mouthed it at some point. It's most likely geological compression, but more eyes=better. Thoughts? Thanks!
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Could I get some help identifying this fossil specimen? I'm unsure of if it's a rock or bone but considering the contrast of texture and look with any rocks I've found before, I'm leaning towards bone. It was found near a river in middle-Arkansas & is pretty small and hard to discern. Any ideas?
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I recently ordered some decorative stones for my garden when one of them happen to catch my eye. Is this a petrified mushroom it is hard like a rock but has very defined gills.
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Northern Arkansas family vacation looking for trilobites!
CrinoidCrazy posted a topic in Fossil Hunting Trips
Booking a family trip to northern Arkansas! Finding a trilobite is on my daughter and my “dream come true!” list! Any recommended destinations or places to look would be greatly appreciated! Thank you! -
I’m hoping to ID two fossils. The first fossil was found in the Boone Formation of Northwest Arkansas. My first thought is ammonite, but the spiral is much looser than what I’m seeing online. The second fossil was found 10-50 miles south of the south rim of the Grand Canyon in Arizona. It was a while ago, can’t remember exactly where I was. Both are about an inch across. Thanks for your help!
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Found in the Little Buffalo River near Beckham Creek
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Howdy all, I did a bit of fossil hunting in Fayetteville AK over Thanksgiving, hitting the Mississippian age black shale the area is famous for, looking for goniatites and any other ammonoids or nautaloids I could find. These concretions were dug out of the lower unit shale and many of them were large, extending over 4ft in length, flat, with an oblong appearance. This was on the surface of a concretion and unfortunately was exposed to weathering and moisture. Not sure what that is. This little guy, it’s just provided for grins and not requesting an ID. It’s way too small This is the main fossil I’m concerned with ID’ing. When I broke the concretion, it split revealing a horizontal cross section of an ammonoid. I have both halves and it appears to be potentially well preserved. I’m attempting to prep it but it’s been a real struggle due the siderite that makes up most of the mineralization in these. It shines like metal when it’s cut or ground with a diamond bit making it very difficult to make out features and details. It all just looks like a shiny metallic mess. To complicate things further, many of the fossils are pyritized. I’m sticking to mineral oil only when slabbing and making large cuts. Oil causes the dust to clump and build up further obscuring things. Im also having to wear a respirator to avoid breathing this dust and it makes a nasty mess. It’s a total pain but it’s worth the hassle to get one well preserved ammonoid, even if it’s small. I’m curious if anyone has ever worked with this shale and if any tips can be provided. I’m only attempting this kind of prep once as an experiment. If it works, I’ll do the same with the other half and glue the halves back together. Im leaving enough matrix on the bottom to provide a base to stand it upright and only removing matrix from the dorsal side. I have no clue if this will work or even how much of this thing is preserved. When slabbing excess matrix off I found a second Ammonoid below it that appears completely pyritized, though less well preserved. It’s the piece on the left and the rest of it is under the fossil on the right. Note that it’s cut like a vertical cross section and not proportionally. Any assistance or info is greatly appreciated. I realize that a definitive ID may be impossible without exposing the dorsal side and it’s sutures.
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Hi guys, Thanks for your help. This was found in an Arkansas cave, where there was a lot of bones, and a lot of Indian artifacts. The inside is porous and seems to be somewhat of a bone / calcium deposit I'm not sure. Please help me identify this. It doesn't feel like a rock at all, and there's also a big piece that looks like a vertebra, kind of crystallized, that was found with this.
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Claiborne Amber (Cockfield Fm., 41.3-38 Ma)
Barrelcactusaddict posted a gallery image in Member Collections
From the album: Fossil Amber and Copal: Worldwide Localities
1.4g translucent specimen measuring (mm) 16x15x10; one side presents an unbroken exterior, with slight remnants of sand, clay, and lignitic matrix. This material was recovered from the Malvern Clay Pits, east of Malvern, Arkansas. FTIR spectrum comparison of Claiborne amber to modern Shorea sp. resin points to the Dipterocarpaceae as a probable source for this middle Eocene-aged amber.© Kaegen Lau
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Claiborne Amber (Cockfield Fm., 41.3-38 Ma)
Barrelcactusaddict posted a gallery image in Member Collections
From the album: Fossil Amber and Copal: Worldwide Localities
4.1g rough specimen measuring (mm) 25x18x15. This is a section of a run, with successive layers grading from translucent to opaque; portions of the sand, clay, and lignitic matrix coats the exterior as depicted. This material was recovered from the Malvern Clay Pits, east of Malvern, Arkansas. FTIR spectrum comparison of Claiborne amber to modern Shorea sp. resin points to the Dipterocarpaceae as a probable source for this middle Eocene-aged amber.© Kaegen Lau
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Just a note that James Cullison's 1944 monograph on the rocks and fauna of the upper Lower Ordovician of Missouri and Arkansas is now freely available for download or perusal at https://archive.org/details/paper-cullison-1944-the-stratigraphy-of-some-lower-ordovician-formations-of-the This publication has always been devilishly tough to get a hold of. A nice systematic paleontology section deals with the many gastropods and other mollusks as well as the less diverse brachiopods, trilobites, and sponges. The monograph covers the following formations as currently accepted in Missouri: • Smithville Formation • Powell Formation • Cotter Formation • Jefferson City Formation Enjoy and share as you like. Full citation: J. S. Cullison, 1944: "The Stratigraphy Of Some Lower Ordovician Formations Of The Ozark Uplift." The University of Missouri School of Mines and Metallurgy Bulletin Technical Series, Vol. 15, No. 2, 112 pp + 35 pl.-
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Hi. I have no idea about fossils… My family and I vacationed in jasper Arkansas on the buffalo river last summer. We were deep in the mountains and my daughter picked up this rock and dropped it. To our surprise it was full of fossils. She took it to school today to show her class since they’re learning about fossils. Her teacher told her it was only a few hundred years old, not a real fossil. So now I need confirmation that we found something good. Help me out!
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Any help identifying ?? Thank you
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A friend found these two items in Northwest Arkansas/SW Missouri in a stream bed. Wondering what they might be. and second item similar size without scale, sorry. Thanks for any comments.
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before quick polish, et apres. small ammonite? central arkansas...and B maybe nothing but something perhaps, unidentifed compadre of exhibit a. please advise. merci.
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Traveling from Minnesota to Texas next week Take I35-W down and roughly following the Mississippi back up. Any recommendations for fossil or paleo related Museums to visit or fossil hunting trips/locales along this loop? I am mostly interested in vertebrate fossil hunting but would really be up for any good suggestions.
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Looking for help with this Early Ordovician (Floian) trilobite from the Powell Dolostone of Arkansas, USA. The specimens (GRAY FIGURE below) were identified by Taylor (1968) as cf. Lannacus nericiensis Wiman, but that species (now a species of Megalaspides) doesn't seem like a great match, as the author notes in the paper. In fact, I'm not sure that proper Megalaspides even lived in North America. Last week, an Arkansan found another asaphide specimen (MAIZE AND BLUE FIGURE below) in these same rocks, which may or may not be the same species as the specimens described by Taylor. My question: Could these all be specimens of Isoteloides canalis? That species is already known from the Powell Dolostone in Missouri per Weller & St. Clair (1928) (as Isoteloides whitfieldi, now a subjective synonym of Isoteloides canalis). Or are these instead specimens of a distinct Powell asaphide, and if so, what genus & species? Thanks in advance. 1959 Treatise blurbs for Isoteloides and Megalaspides are in the BLACK AND WHITE FIGURE below. Here's Taylor (1968): https://scholarworks.uark.edu/cgi/viewcontent.cgi?article=3056&context=jaas Here's Weller & St. Clair (1928): https://share.mo.gov/nr/mgs/MGSData/Books/Volumes/Geology of Ste. Genevieve County/V-022.pdf GRAY FIGURE: MAIZE AND BLUE FIGURE: BLACK AND WHITE FIGURE:
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Yesterday I somewhat unexpectedly ended up with a day off of work, and as it's too hot to enjoy hiking, I decided it was time to hit up my favorite exposure of the Fayetteville Shale. I found myself thinking on my way out, I've picked this place pretty clean, I don't think I'll find too much. Luckily for me though, the -20F freeze and extremely wet spring we've had did a nice job of eroding the shale. Almost as soon as I got into the creek, I saw a pickerel frog tucked away in a little hole. Not too much further, I hit the beginning of the exposed shale. The bed of the creek is mostly shale, so it's pretty easy to find outcroppings! Inside of the shale, there are sometimes fossils sticking out, like the edge of the first nautilus I found. Further on, I found blue heron and barred owl feathers A nicely complete nautilus shell was one of my favorite finds of the day I also pulled up a couple straight shelled nautilus as well. They are very prevalent here. The cherry on top was seeing a snapping turtle on my way back out. I gave her a lot of space to discourage any biting, although they're generally docile in the water. She was growing algae, so maybe not the healthiest turtle, but quite a sight nonetheless. Some of my finds cleaned up. I believe the orthocones are rayonnoceras, but only because they are common in the area. I keep thinking I should figure out what things are better before posting on here, but All in all, a very nice way to spend a day off and enjoy the beautiful Ozarks
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Trying to id this rock. Looks like an egg hard and heavy like a rock
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Found this while hiking in a mostly dry creek bed in North West Arkansas. Picked it up because I thought it was interesting. When I first spotted it I thought it was a piece of bone. Seems very solid, no porousness in the center or striations outside. Is it a fossil of something? Just a neat rock?
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