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Found 543 results

  1. Ok, what do you guys think of these?

    I’ve got some ID requests that need to be solved. First (#1) an old friend that needs to be re-evaluated I think. I know this to be solidly mid to late Cambrian in age which leads me to believe its some kind of ichofossil perhaps Cruziana. What are your thoughts?
  2. My first fossil and I'm already stumped - hoping someone can point me in the right direction here! My husband is a geologist and brought a piece of shale home with a fossil poking out. I've been chipping away inexpertly, and can't figure out what I'm looking at. This was found outside Birmingham Alabama, in the Mary Lee Formation, near the Pratt Seam. My husband tells me the area was freshwater swamp during the Pennsylvanian Period. What am I looking at here? I know it shouldn't be soft tissue, but it doesn't seem to be plant, shell, or bone, either! Please set me straight! I hope these pictures are ok - as you can see, I'm not done cleaning it... but I'm trying to be cautious since I'm learning as I go. Also possibly relevant: the shale was riddled with dark colored fossil plants. My husband said they were carbon - they nearly disintegrate on contact. I've included a picture of those, too. Here are pictures of the plant fossils in the rock that were exposed when we broke it apart. The mystery fossil is on the top of the left rock. Thank you all!
  3. I never cease to be amazed by the crazy things I find while stumbling around in the great outdoors like this odd remains of a crinoid. Mother Nature keeps me endlessly entertained. The rock has shells, bryozoa and other TBD's. The rock the specimen is in also just really, really light for its size and very porous in appearance. Lots of voids, some with very tiny shells inside. this seeming spiral gastropod is probably 2mm long and hiding in a void. not the best pic as taken indoors with lighting at night...but I hope you get the idea.
  4. Greetings. I chanced upon this in the way out yonder in a Pennsylvanian formation while out on a hike...and wondered to myself 'Self, is this a brachiopod with a quartz crystal lophophore or a brachiopod with some quartz crystals in it'. Time to ask the pros or those in the know...
  5. Conodonts beside an unidentified item

    Can someone help me identify the item that is with these two conodonts? My guess is a fish scale. This is from the Stark Shale, Dennis Formation, Kansas City Group. The conodonts are 2mm or so and the specimen is 7mm. I am intrigued by the surface of the "shell" which is a bit crab-like (I'm not saying I think it is crab, but that the item's shell has that kind of texture). I've included pictures of both the item and its external mold on the other half of the split shale. Let me know what you think. Russ
  6. On a short schedule for searching so it was a mad dash. I have very few ways to easily reach the Pennsylvanian Formations. Ordovician-Silurian-Devonian-Mississippian no problem. Anyway, I've found some interesting ferns in the Pennsylvanian Gobbler and wanted to see what I could find in another location about 3 miles as the crow flies away. About 1.5 miles into the site and a fairly productive morning for an initial search. Not the best of specimens but holds promise. Found this interesting brachiopod panel presenting itself with some glints. It was easily opened up by dragging my long chisel into it Some of the brachs. Not cleaned up yet.. A brach hash plate and the layer the brachs deposited on showing trace fossil depressions. Not cleaned yet A couple of phylloid algal limestone specimens
  7. On Saturday I posted pics from a Fossil Hunting Trip that I did the day before at a road cut in Ogelsby, Illinois.This area contains fossils from this formation- La Salle Limestone member of the Bond Formation (Missourian, Pennsylvanian) Unit 3. On of the pics that I posted was of something that I did not recognize and as always happens on the forum, someone responds with an identification. FF Member @Archie (Sam) stated that it was a Peripristis shark tooth and later stated that it was the lingual view. I then did some searching on the internet for pictures of this type of tooth and Sam was right on. During my search, I also came across an article titled "Pennsylvanian (Late Carboniferous) chondrichtyans from the LaSalle limestone member (Bond Formation) of Illinois, USA. This paper was written by Dr. Stephen L. Brusatte , who is a Chancellor's Fellow in Vertebrate Paleontology at the University of Edinburgh- (He grew up in Ottawa, IL. a town very close to Oglesby). Dr. Brusatte is an American Paleontologist and Evolutionary Biologist who specializes in the anatomy and evolution of dinosaurs. I found his e-mail address and late last night I e-mailed him pictures of this tooth and he responded early this morning and confirmed what Sam had stated. He further stated that "shark teeth are quite rare in the Pennsylvanian rocks of the Oglesby area". Sam, thanks again for helping me out with this ID.
  8. Though I just visited this site a few days ago and posted a trip report of that session, I decided to go back yesterday for three reasons: #1- My lower back was back to being 100%, that's a good thing. #2- It was supposed to snow today, and it is. I think the Olgesby area might have about 3" on the ground now and you can't collect on a steep scree field covered in snow. And #3, I just like collecting fossils. This area contains fossils from this formation- La Salle Limestone member of the Bond Formation (Missourian, Pennsylvanian) Unit 3. I am pretty sure that a portion of the Gray Shale (Unit 2) also came down. So yesterday I headed off to the road cut to collect in the balmy winter weather of Illinois. I was alone except for the Bald Eagles that were soaring high over head, from time to time you could hear their screech. With my back being a 100% I was able to maneuver along the loose rocks without a problem and was able to spend some time looking a the rocks a found a number of beautiful plates and large loose brachiopods. This site will continue to produce as the weathering process takes affect. As I stated in my last post, if you are ever in that area, you should stop and take a look, there are some beautiful fossils there. Here are some pics that I took in the field and I will end with pics of some of the same fossils, but hopefully in better light. Here a chunks of rocks that are just loaded with brachiopods. Composita argentia- I did find a number of fossils filled with crystals, this one is a favorite. Bryozoan- CONTINUED---------Next Post
  9. On my holiday trip from Ohio back to Minnesota, I thought of taking some time and searching the Braidwood area for fossils. I overnighted in the area, jumped out of bed at the crack of dawn with anticipation and headed to the Mazonia-Braidwood State Fish and Wildlife Area. Unfortunately, the park was gated off and access was only allowed for hunting (animal) purposes. On top of this, light snow began to fall making it hard to see anything on the ground. I did manage to look under some trees outside of the gated area and found what looked like a few nodules. It is common knowledge to open these up with a freeze thaw technique, but my hammer kept calling. So after a few whacks, this is what I saw inside. Can anyone identify anything in these pictures?? I have extreme difficulty seeing what many do when looking at open nodules. So an expert eye is needed. Mike
  10. Here are two interesting Pennsylvanian fossils that I bought at the Flagg Gem and Mineral Show in Mesa, Arizona (~4.5 inches wide) from the Apex Mine near St. George, Utah hosted in the Callville Limestone. A Chatetes sp. sponge is coated in azurite and malachite. Syringopora sp. coral molds are in goethite with significant germanium and gallium values. The goethite replaced the limestone. See this USGS article about the mine: https://pubs.usgs.gov/bul/1577/report.pdf
  11. A daylong venture into the back canyons of the Sacramento Mountains to look for minerals and fossils. From the trailhead & back was just under 9 miles and lots of rock scrambling through Ordovician-Pennsylvanian formations. A dryfall requiring a climb around Overhang with rippled sandstone floor having iron concretions A view back down hill partway to summit Horn corals Maybe coral?
  12. Arkansas and NW Missouri

    Took a road trip today and although it was only 28 degrees found a few interesting items. Any help identifying, even a rough direction to look would be appreciated. 1 and 2 were found at Beaver Lake in Arkansas. If I read the map correctly, which is always iffy, they should be Ordovician in age. Wondering if I should break into the squarish looking piece (#1) to see what it contains. 3 and 4 were found just across the Missouri line from Grove Oklahoma. I believe the area is Late Pennsylvanian. The limestone (3) looks like it contains traces of water worn chrinoids(?). #4 May just be a water worn rock but maybe a man made fetish? The hole goes all the way through and would make a great hanging piece.
  13. Within the last 7 days I collected fossils from following time periods- Cambrian, Ordovician, Silurian and Mississippian. I figured that I would go out today for a little road side Pennsylvanian collecting on IL 71. I did not find much, but it was fun and cold, about 30 degrees and a light flurries. Pics of the road cut- My finds- The most abundant fossil at this site is the brachiopod Composita argentia. Here are a couple of what I believe are Juresania nebrascensis. Here is a small crinoid hash plate. All cleaned up-
  14. Fern Prep

    My dad and I collected this large fern several months ago in PA and have since contemplated how best to prepare it in order for the fossil to be visible. When the material is dampened, the fossil is visible; but, when the shale dries, the fern kinda disappears back into the material. We read somewhere that coating the material in Butvar may darken the material and may make the fossil more visible; however, we would love to hear the thoughts and suggestions on this group. Any help is greatly appreciated.
  15. Montana, a shortish faunal review

    EASTON W.H.Easton: Carboniferous Faunas and Formation of Central Montana A study of the stratigraphic and ecologic associations and significance of fossils from the Big Snowy group of Mississippian and Pennsylvanian rocks Geological suvey Proferssional paper n.348/1962 Number of pages 157 PLATE two: stratidistribplate-2.pdf PLATE ONE(correlation/logs) plate-1.pdf to be used with some care with regard to (at least)the taxonomic aspects
  16. Mazon Creek fossil plants: Part 1

    Hi guys! Long story short, a rather large collection of Mazon Creek fossils has been donated to my university. I thought I'd share some pictures of the collection and confirm some preliminary identifications. There are a lot of specimens so I will probably split this into two posts. Annularia radiata Annularia stellata A whole bunch of Annularia stellata?
  17. Here is a sample of a fern and Cordaites along the bottom (my guess) I've been finding. Pennsylvanian formation in an area with igneous intrusions. I would enjoy being able to identify and label different fern types in the future so any help naming these now and a good source for learning more would be my ideal goal. Lastly; what induces the coloration? Is it some form of pyritization? High iron mineral content of water and ground it grew in at the time? I have additional specimen photos that appear to be of other types but I just realized my file sizes are limiting how many I can post at a time...need to learn how to do better in future posts.
  18. Fossil or geological?

    A friend of mine recently brought some property southwest of Brownwood, Texas. The land is largely Pennsylvanian. The formation is Garner, which he says the description says it is marine with megafauna. He sent me these pics (below) this morning. He found this last week. He said it was just laying on the ground and didn’t see the source of it nearby. At first I thought it looked like some weird type of wood I had never seen before, but now I’m wondering if it could be geological. I have requested an end view, side and back side pics of it. He won’t be able to get them till this evening though. I think it’s pretty cool looking whatever it is. I appreciate your thoughts and comments on it.
  19. Here are two coiled marine mollusks from an Upper Pennsylvanian site near Brownwood, Texas I collected in September. Not sure if these are gastropods, goniatites, or nautiloids. Two views of the first one and three views of the second. Thanks for any help with the IDs.
  20. 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.
  21. Pennsylvanian Flora

    It was about a month ago that I attended a wedding in Ohio. There was a free afternoon for me to do a little exploring. So I took a short one hour road trip to Ambridge, Pa. I had no tools to use other than a carpenter's hammer that I borrowed. Had I been prepared to split shale with the proper equipment, my results would have been much better. Pennsylvanian, Dutch Creek Formation flora exists in the shale cliffs across the Ohio River from Ambridge, along Route 51( a 4 lane highway) as you cross the bridge. It is a very safe area to collect since barriers are in place to prevent rock slides onto the road. This keeps you separated from the heavy traffic on the road. Here are typical fossils found at this site.
  22. Pennsylvanian oddity

    Revisited a site today that I believe to be Pennsylvanian. Found this oddball. Fossil? Mineral? You can see some of the typical plant material from the site to the left on the same stone. Blade of grass is 3/8”-1/2” wide. Kind of looks septarianish now that I look at it again.
  23. Carbondale PA

    Hello everyone! I am in the process of investigating the fossil site in Carbondale PA but can't seem to find the exact place where to go or any directions, there were some things I saw on the forum but they look like they are on private property. If anybody knows about it new insight would be greatly appreciated. Thank you.
  24. Bone & fish fins?

    "digging" around in my Winchell fm micro matrix, I found a few interesting items. One I think may be a bone of some sort from something & 2 other may be fins. The bone is 9 mm in length, the larger fin is 1 cm & the smaller one is 5 mm. First set is the bone. Both sides, both ends & an angle of one end.
  25. Pennsylvanian Plant Questions

    Last week, I was in NE Ohio for my nephew's wedding. During my spare time, I ran across to Ambridge Pa. and collected a few fossils. In trying to ID everything I found, I came up with a few ?s for you plant experts. 1. Calamites leaf? 2. There are 2 bumpy things on this, top center (less obvious) and lower left. My guess is bark? 3. Sphenopteris?? 4. These are likely Pecopteris fronds of Psaronius fern trees. Can these two different species be further identified?