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Showing results for tags 'arkansas'.
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Hardly anybody ever talks about the Cambrian fossils of the southern midcontinent (USA). They're super-underappreciated. Show us what you've got! Here's one to start us off: Thorax and pygidium of a trilobite, possibly Orygmaspis, typically referred to as "Orygmaspis cf. Orygmaspis llanoensis" but probably a different species altogether. Note the two pairs of macropleural spines marking the final thoracic segments. Davis Formation (late Cambrian: Furongian), south side of Highway 8, St. François County, Missouri.- 3 replies
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- reagan sandstone
- honey creek formation
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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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- rock mushroom petrified
- missouri
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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'll be heading to the Bentonville / Fayetteville area this weekend with some non-fossil friends who want me to show them some fossils. I know it's a very rich area in general, but if possible I would like to take them somewhere where they can all easily find an ammonoid / goniatite in the Fayetteville Shale. I have the classic papers, but I'm guessing that newer localities will be more productive than the ones published in the 1960s. Maybe there's a relatively fresh roadcut in the area that would be ideal for this? If you know of one, please comment below or message me. Than
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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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- what is this?
- little buffalo river
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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
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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 Members Gallery
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 Members Gallery
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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Claiborne Amber (Cockfield Fm., 41.3-38 Ma)
Barrelcactusaddict posted a gallery image in Members Gallery
From the album: Fossil Amber and Copal: Worldwide Localities
8.0g prepared rough specimen displaying a partially polished face, measuring (mm) 50x22x14; this piece is a transverse section, and displays numerous layers or flow lines with sequences of micro bubbles as well as sediments. 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 Missour
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- cephalopoda
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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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- arkansas
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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.
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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
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- nautilus
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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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Below are 2 items found on the same day after a few days of heavy rain/high creek water. Both of these are heavy and have a hard iron-like shell or covering. The 2nd item was split into 2 pieces when I found it. It is made of the same material as the first. We have iron in our well water at the base of the ridge so I’m very familiar with the color and the smell of iron. These items don’t usually wash up in the creek. I picked them up because their unusual shape and texture contrasted with the creek’s normal sand and gravel.
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I need help identifying this one. Thanks
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These 2 items were found close to each other in a creek bed in Northeast Arkansas near the Missouri border on Crowley’s Ridge. Because of the heavy flooding during the year that these were found, I organized my finds according to date. Every flash flood seemed to bring different oddities.
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All of my pieces come from a creek on Crowley’s Ridge in northeast Arkansas near the Missouri border. Crowley’s Ridge is believed to be about 10,000 years old. Located as far north as New Madrid, Missouri and as far south as Wynne, Arkansas, it is believed by some to be a former bank of the Mississippi River. At some point, it may have even been an island. Some research has suggested that the ridge was affected by volcanic activity in the distant past. Today, Crowley’s Ridge is known for its gravel pits, uplifts, and bluffs which were likely caused by t
