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Found 59 results

  1. Vertebrate?

    I found 2 of these when I put in a septic system along with crynoid calyxs, nautilus, and ammonite peices. Wouldn’t expect to find anything like this here.
  2. Horse or Bovine Tooth? Approximate Age?

    I found this tooth last week in the Illinois River in NW Arkansas. I’m guessing it’s not terribly old, but I’d like some help narrowing down if at all possible. I think it’s a horse, but not positive. It looks as as if it has been buried in the mud at some point due to the dirt being up in the root. Thank you for any help given.
  3. North Arkansas curiosity

    Hi, this is my first post, very new to fossil/mineral collecting. Does anyone recognize this portion of what I believe to be a fossil? Pic 1 is what I am calling the top. pic 2 is a close up of an interesting portion of the top. Pic 3 is where the top and bottom wrap around the side to meet each other at some kind of a "V". Pic 4 is what I am calling the bottom. My in-laws are building a house in North Arkansas, I found this in the excavation. I have already identified coral, stromatolites, Shells in other rocks found in the same piles. The main minerals found are quartzite, chert, red sandstone, red clay, calcites, iron, zinc. The area they are found appears to straddles these two regions according to Arkansas geological maps. The house is being built on the top of a large hill: https://www.geology.arkansas.gov/docs/pdf/geology/Collecting-Fossils-in-Arkansas.pdf The Salem Plateau: contains the oldest rock present and is made up of dolostone, limestone and sandstone of Ordovician age. Algal structures called stromatolites, corals, brachiopods, bryozoa, crinoids, gastropods, and some cephalopods are the fossils most commonly found in the limestone and dolostone. Trilobite fragments are less common but are present in these strata. The St. Peter Sandstone contains the vertical trace fossil Skolithos. Silurian and Devonian strata are limited in their outcrop area. Silurian limestones contain crinoids, trilobite fragments, and small algal mounds. Devonian strata are usually unfossiliferous. The Springfield Plateau: is made up of limestone, sandstone, shale, and chert from the Mississippian Period. Corals, bryozoa, brachiopods, crinoids, bivalves, cephalopod, and gastropods are common in these rock types. Trilobite fragments are less common but are present in these rock types as well. Echinoid fragments are present in the Boone Formation. Starfish and bivalve resting traces called Asteriacites and Lockeia respectively, and worm trails are common at certain localities in the Batesville Sandstone
  4. 3 Day Trip with my girl

    Hi Folks, I am planning out my first long road trip to collect with my youngest daughter for next week.(she's 13 and we have our local Pennsylvanian rocks we collected together for years, but I have been overseas working for a year, and I am getting ready to go back to do one more year, and I want to do something fun with her and she asked to go look at rocks and collect since she knows it's my favorite thing I never get to do) Anyway, I've been out of country until about 2 weeks ago, and I know there's been a ton of rain in Oklahoma, and I am curious if I should try to head to Mineral Wells and Jacksboro in Texas, and maybe head back towards Arkansas, or should I head north to Kansas and maybe cross over into Missouri. I'm at a loss since I don't get much US news in Vietnam, so I have no idea what everyone's weather has been like, and I'm not looking for honey hole suggestions, just a few places I can take her that she can find stuff and we can just have some time together. Pay sites are okay too if you have some suggestions. Thanks, Jim
  5. Petrified wood or ???

    Hi everyone, I enjoy finding agates and fossils along eroding sections of Crowley's Ridge, a ridge of glacial deposits that runs through eastern Arkansas into southeastern Missouri. I appreciate your help ID'ing this chunk of something. As I recall, it's around 15cm long, around 7cm wide. I'll measure it tonight. Most of the petrified wood I find along the ridge is very dark: predominant colors are blacks, browns, and dark reds. I'll include a couple of samples in a picture below Both of those specimens are 7-10cm across. Both look a shade darker in "person." This is light to medium grey (just a shade lighter than it appears in the pics). The growth/deposit rings look interesting. Any thoughts? I appreciate all information/opinions on the grey chunk or the two smaller pieces.
  6. Anyone know what these are?

    Does anyone have any clue what are embedded in this? I've never seen them before.
  7. Is this a fossil

    I'm going to try this one last time, I'll try to size them down a little. Sorry in advance if it doesn't work. Thanks.
  8. What do you think?

    Hi, NW Arkansas again. I thought this was unusual. I usually have trace fossils but this caught my eye and I would love your opinion. I really have no idea on this one, Thanks again.
  9. So this material is from the Clayton formation in Arkansas. It is Paleocene in age. We are finding a lot of these flat pieces which I at first thought might be crab shells but now I think they must be scales from armored fish. Sometimes they are very thin and small - these examples are larger ones. If I am correct does anyone know if we can tell which fish they are from? (tape measure in view is in mm) The lone piece is from the same matrix as the others. After cleaning it up I would have guessed it was just a larger piece of armor but while I was removing it both ends broke off and it has some internal structures too. Also it seems to have tunnels that run through it that make me think of passages for nerves or blood vessels (bone? - it sure doesn't seem like it because it seems to have a shell). Here are pictures of its external and internal structures. The tube-like piece connects with one of the holes in the outside shell. I have taken pieces of all 4 exposed internal surfaces. It is not quite symmetrical which makes me think it isn't a crab . . . The fourth pic where a lot of the white matrix is visible is the back. I have been reluctant to clean it up since it is a bit fragile. Note: pics 5 & 6 (with the tunnel-like structure) have a bit of rubber cement on the surfaces - I had to retake the pics and had already begun to glue them back together
  10. Hi folks, On our last cross country trip we stopped at a fossil site I had heard of to look for fossils. It is near Malvern, Arkansas and I am sure it is Clayton formation (Paleocene) based on a publication which specifically describes the site. It was a horrible day for collecting so we grabbed some samples and are now slowly taking the matrix apart at home. We are finding a lot of tiny stuff and a few sharks teeth which may be identifiable. Does anyone know what the shark fauna looks like from that site. I haven't found any good references for the Clayton specifically and the publication I do have is a faunal survey which compares rough numbers in different groups and deals very little with the specific species themselves. Thanks for any help you can offer. Kate
  11. Northeast Arkansas Ammonite?

    Two fossils from Northeast Arkansas southern ozarks.Found in shallow red clay wash.Possible ammonite or mabe gastropods I do not know?This area is not known for cephalopod fossils.Lower Ordovician? I would like to know what others thank. An ID would be great.Thanks.
  12. Please help identify

    I found this hiking up a rock bed after heavy rains at the headwaters of the Buffalo River near Fallsville, Arkansas. It looks like a fish to me but I have no experience in this topic. Please let me know if you have an idea. It is approximately two inches in length.
  13. I found this one yesterday. I recently got back into the hobby of rock tumbling and was looking for rocks for that when I came across a few fossils in a creek bed in North Central Arkansas, USA. This one resembles a "pigs in a blanket" sausage wrapped with crescent dough. I thought the inside was just dirt and mud but it is solid. It is 2 inches at the longest point. The hole is approximately an inch in diameter.
  14. Found In Benton co Arkansas. Looking for arrow heads in a creek. Just looked interesting. The pick with the tape is dry the other wet
  15. What do I have?

    I know nothing of fossils. But when out hiking I keep an eye open for arrow heads and other rocks that look out of the ordinary. While hiking an old indian cliff dwelling trail, I saw this rock. It has a strange look to it like its a fossil of some sort. Do I just have a worn smooth rock or is it something else? Thanks in advance. It is approx. 2 inches long and 3/4 wide
  16. TN gal needing ID of fossil find?

    I found some interesting bones/rock/fossils?? Needing help to determine if they are really fossils. Found in North Central Arkansas on an exposed / eroding hill side leading to a river. I dug many of these out of red sticky clay. I really appreciate any help I can get, I’ve had these for 2 years and it’s finally time to see if I unearthed a remarkable find. Fingers crossed
  17. Turtle

    Can someone please identify what kind or turtle that this belongs too and the General age of this fossil. Thank you.
  18. Arkansas ferns x3 and Annularia ID.

    These were fossils my dad found over 20 years ago I think and gave to me maybe 10 yrs ago. I had completely forgotten about them. My dad use to be a land man for an oil and gas company. So he traveled the area extensively trying to get leases to drill for gas. I believe they are from somewhere near Mansfield, Arkansas from the Atoka or McAlester formations, both of which are Pennsylvanian. Any my help with ID would be greatly appreciated. First Piece The longest blade is about 55 mm long by 13 mm wide. A close up of some of the blades on the left side. I think there are 2 varieties here, not sure if the arching one is like the ones in the center and to the left of it. The center one is the top side of the blade and the one to the left and arching one appear to be the underside of the blades. It’s cool to be able to see that much detail. Then there is a different variety on the top left corner. I’ll take some close ups of those and post in a bit. A pic of the right side a bit closer up. I think in this pic there are at least 3 varieties of ferns. The ones on the top right pointing downwards which may be the same as those on the top left above. Then the long blade in the center running vertically. I think it is the only one of its kind represented on this plate. Then at the bottom running mostly horizontally. I have no clue as to the genus or even group of Medullosans. If I had to guess I’d say Neuropteris for all 3, but it’s a wild guess. Second piece is an Annularia of some kind I believe. You can se the long slender stems and then many long, slender leaves, which appear to have numerous veins running the length of the leaf. They are all cross crossing each other so it’s a bit chaotic to try to isolate one cluster. This is the back side. It has a couple stems running across it. There is more stuff in between layers on both pieces.
  19. Beaver, AR

    Found this bivalve near the bank of Tablerock Lake in Beaver Arkansas. Looking for help to ID. Modern or old?
  20. Eureka Springs AR

    Found this one the shore of Beaver Lake in Arkansas. Pretty sure it is geological . Any ideas?
  21. Mississippian trilobits

    I recently came across some "old" fossils I found a few many years ago, which included some slabs of fossils from the Imo formation in Van Buren County, Arkansas. The site is an abandoned phosphate mine known as the Peyton Creek site. It is about 0.5 miles east of highway 65, and there are also some exposures of the same rocks along the highway roadcuts nearby. The Imo is upper Mississippian and is sometimes included as part of the Pitkin limestone. It is apparently an outstanding site for cephalopods and ammonoids, but I didn't know that back then. The slabs contain several small trilobite pygidia, and below is a photo of the best one (about 5mm wide) along with a couple of others (now you have to look for them ). I was going to post here to see if I could identify the genus and possibly the species, but I think I found my answer already. I decided to post anyway, as a reference and to hopefully confirm the id, although I doubt the pygidia alone are enough. I believe this is Paladin imoensis, as I just discovered that the holotype was collected from the same abandoned quarry.
  22. Rock house fossils

    I just bought a rock house and several of the rocks have these fossils. Can anyone tell me anything about them? I know very little about fossils. They are 3"-4" across and raised about 1/4"-1/2"
  23. Arkansas Fossil

    Found back in 1998 in a new neighborhood in Rogers, Arkansas area where we had purchased a new house....the neighborhood before establishment was hundreds of acres of cow pasture and farming land. The neighborhood was new and the land my house was on was fresh turned dirt. My son kept this all these years and is now in college, he always called this his "dinosaur bone" and we have always wondered would it could be.
  24. Petrified turtle?

    Found close to a river in along with some other interesting finds. Need help identifying type of rock and also if it is some type of petrified turtle or other reptile. Thank you for any help that can be sent my way. Location Murfreesboro Arkansas.
  25. I'm preparing a teacher education workshop which includes a fossil hunting and identification activity. The teachers are coming from many states across the country. I'd like to include some suggestions of sites where they could replicate the things they learn and experience during the workshop with their students in the vicinity of their respective schools. I have the Indiana schools covered. For the ones near Dallas, I'm thinking Mineral Wells Fossil Park (and maybe Ladonia for older, more adventuresome students). The ones I need help with are sites within field trip range of the following: Austin, TX ( @Uncle Siphuncle, @KimTexan, @BobWill, @erose)? Atlanta, GA Golden, CO Palm Bay, FL (near Melbourne) Naples, FL (any shell dump piles accessible to and suitable for k-12?) @digit ? Bentonville, AR Any suggestions would be greatly appreciated, either posted here or via PM. I have alternative activity suggestions for them (e.g. bags of matrix to sift, etc) if they can't do a field trip, but there's nothing quite like the experience of hunting and discovery in the field... I would have done backflips if my grade school had had a fossil trip...