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  1. Hi Everyone, Last month I took a trip from New York to Elizabethtown, Kentucky to attend my parents' 70th anniversary. My sister and her husband, two of her adult children, and my parents, both in their 90s have all resettled there. I try to visit them at least once per year, but my parents' 70th wedding anniversary could not be missed. It is a very long trip from the suburbs of New York City to E-Town and a stop along the way was the sensible thing to do, so I spent the night in Harrison, Ohio near the border with Indiana and only 15 minutes from St. Leon, the well known Ordovician roadc
  2. Possible tooth or bone From the Top of the New Albany Shale, Floyd County Indiana. Found by splitting nodules. The 2 micro photos are detail of the texture, it appears there was a void between the dark areas of the 2 halves. In closer inspection it appears the tip is more pointed and folded under itself. Any Ideas? Thanks.
  3. New Albany shale Nodule find, 1c is 1 cm, 1b is about 3mm of the same speciman showing some small spines, 1a showing spines in the right endof the same speciman, any info appreciated. I am assuming a fish tooth.
  4. Th13teen13

    Mississippian Shark

    I need help 2 give an id 2 this fossil it is from The Mississippian age found in Harrodsburg Limestone Formation Washington County, Indiana On the tag is saying it is Orodus which wasn’t around at that time and wasn’t a Hybodont Someone Who works with lots of Carboniferous fossils said it could be a Saivodus root(maybe upside down) what do you think. The root/tooth is about 0.75 cm in size what do you think ? The bottom picture is a fossil of a Saivodus
  5. Here's a tooth I bought with several other specimens from the same locality (Upper Burlington Limestone, Biggsville, Henderson County, Illinois) back in the 90's. It has smooth enamel and is 1 1/2 inches (37mm) along its longest dimension. I have another tooth much like it but it is much smaller and I've seen other teeth like it but this one is the largest I've seen. Years ago, one collector thought it could be Chomatodus but that doesn't match what I see elsewhere. I think it is a tooth form that has been tentatively identified as Orodus or a relative in the past but I don't know Carbonif
  6. Tales From the Shale

    NW Alabama

    Formation: Bangor Limestone Age: Mississippian Found this location in a remote area of Alabama recently. I Haven't hunted the Bangor in awhile, so I gave it a shot. A fragmentary calyx. Northern Alabama seems to be teeming with these, as I found 8 others in a nearby locality as well. A complete, but squashed roller of a Kaskia? Fenestrella are found commonly articulated with their fans here. This was the best individual I found. My guess is these are Spyroceras? All of my nautiloids come from the Ordovicia
  7. Lucid_Bot

    Any Chance Dating These Crinoids?

    I was searching around a local stream when I found some limestone with dozens of crinoid stems. I can't say what the formation is as I think they rolled down a hillside which had foreign limestone blocks to prevent erosion. If they are native, they would be Pennsylvanian Glenshaw Formation. Each of them has stellate lumens and many have a pinkish hue. Can anyone tell me what variety of crinoid and is it possible to discern the period? Thanks.
  8. I found these several geodized Mississippian marine fossils in southern Indiana. They may not all be hollow with quartz crystals inside, but many are. The fossils usually balloon in size in the geode-forming process. Here's 2 sides of a crinoid calyx...
  9. I am looking for the following unpublished thesis. I have looked in the IU database as well as I can but do not see it. Does anyone know if there is another source for a digital copy? Thanks J. Rodriguez. 1960. Invertebrate Fauna of the Golconda Formation (Middle Chester) of Indiana, Western Kentucky, and Southern Illinois. unpublished Ph.D. thesis, Indiana University 1-259
  10. minnbuckeye

    Mississippian Rugosa Coral to ID

    A new coral was found when geode hunting in NE Missouri. Likely Warsaw Formation, maybe Keokuk. In either case it is Mississippian. I am leaning towards an ID of Acrocyathus floriformis, a colonial rugosa known to occur in the Mississippian. But I prefer that coral experts chime in before I label it!!! @TqB Thanks Mike
  11. ClearLake

    Brachiopod Publication Request

    I am looking for the Plates for Wellers 1914 publication: The Mississippian Brachiopoda of the Mississippi Valley Basin which was a monograph from the Illinois State Geological Survey I can find (and have) the text in lots of different places, but not the Plates. Anyone have them and/or know where I can access them online? I'll give a shout to a couple folks that may have used this reference: @Tidgy's Dad @Misha @Herb Thanks a bunch. Mike
  12. After the last one (link here: fish skull ) turned out to be a nice skull, I'm wondering if anyone could ID this bit? It's very 3D and hard to photograph without image stacking so I've given three views. Phosphatic nodule, Brigantian (U. Mississippian) marine shale, Co. Durham, UK. counterpart:
  13. Anyone recognise this? Phosphatic nodule, Brigantian (U. Mississippian) marine shale, Co. Durham, UK. Nodules from this bed often contain fish bits, as well as cephalopods, inarticulate brachiopods and (rare) conulariids. Not cleanly broken but the shape is ringing a bell... concave counterpart
  14. It has become a yearly ritual to slip away to Southern Iowa to collect geodes. When in the area, I take an additional afternoon to play around in the Burlington limestone looking for crinoids but gladly accepting whatever comes my way. Here are some of my finds. Usually I label the pictures, but due to time constrains, I am posting unlabeled pictures this time. I threw in a piece of styolith since I have seen a few topics where there was questions about what it was. Eutrochocrinus christyi Azygocrinus rotundus
  15. oilshale

    Brachiopod from Bear Gulch - ID?

    Does anyone have any idea what kind of brachiopod this could be? I'm sure we can't identify the species, but maybe the family or even the genus? Carboniferous Serpukhovian Bear Gulch Montana
  16. I recently found this rather good (for the area) and rare goniatite, probably Girtyoceras sp. The innermost half of the living chamber has a mass of small rods which a few knowledgeable friends have suggested are faecal pellets from something that took up residence. It's in an ironstone nodule from a Brigantian (U. Mississippian) shale in Co. Durham, N.E. England. Fairly shallow water, with a diverse fauna of brachiopods, bivalves, bryozoa, small corals, crinoids etc., often broken up. I haven't seen any arthropods apart from small Paladin trilobites which are quite
  17. A few years ago I picked up an old paleontological publication from a University of Chicago used book sale and one of the sites described looked interesting. I finally got around to visiting the site last week, a good 5+ hour drive. It was completely overgrown so had to hack my way to the exposure. Middle Mississippian rocks. After about three hours of careful work I came across some Griffithides skeletal elements buried in foraminifera matrix. I also found this nice calcite crystal that fluoresces pink u
  18. Spent the day at the famous old cut in Sulphur, Indiana yesterday, and while I didn’t come away with a Mississippian shark tooth, I’m wondering if other parts of these animals preserved? This piece is shiny black like coal, about an inch long, is definitely fossilized, and was found in the Big Clifty formation. Anyone here an expert on Carboniferous sharks or has found anything similar?
  19. Spring is almost upon the folks of Minnesota. There is still a bit of frost in the ground so 2022 collecting will soon begin. Until then, it is fossil ID time. This one is from Burlington, Iowa, the Burlington Formation, Mississippian. I have been looking at this one for a long time. Is it one of those predators of Burlington crinoids?? Is it a monoplacophoran? Species if so?
  20. Took a day trip to Mississippian subperiod sites in West Virginia, with exposures that represent environments ranging from shallow marine to mudflats (reflecting periods of ocean transgression and regression). Of course there were brachiopods; the one photo of a brach below shows pink/light red coloration, and I've also posted this in the General Discussion section under "Fossil Shells with Color Patterns." I've never before found a brachiopod with shell coloration. There's also a photo of a sea pen (Pennatulacea, only right side is well exposed). And there is anoth
  21. Back in April of last year I started a new job based in Texas. I had planned to work remotely until we returned to the office and then make a road trip down to Texas that would involve making several fossil pit stops along the way. When the time came for my move to Texas, my road trip unfortunately coincided with Hurricane Ida and I had to sadly scrap all of my plans and simply hightail it through the Gulf Coast to avoid the storm. Fortunately though I was given off from work the week between Christmas and New Years and I was even more determined to not let my research go to waste. The delay i
  22. Cladodus and Stethacanthus are more typical of modern day shark teeth. As can be seen, the tips are not always present, some destroyed in prep, but many tips severed prior to fossilization. Cladodus possesses a straight shaft while Stethacantus is S shaped.
  23. Continuing on with Burlington fish teeth, the next set of photos will feature Orodus.
  24. The next Burlington teeth found this summer to have been termed Deltodus. My ability to differentiate Deltodus from Sandalodus, Helodus (small), and Psammodus is nonexistent. So even though labels say Deltodus, the true identity of some may be the other three genuses. I am open to any suggestions that veer away from a Deltodus ID. Like Chomatodus, Deltodus is a Chondrichthyan. There seems to be 2 general physical types. Blacker teeth seem to be larger and have smaller pores. Lighter colored teeth seem to be smaller and have larger pores. Is this a way to differentiate types??
  25. Chomatodus will be today's fish of the day. It is a Petalodont, similar to a modern day Ghost Shark. My understanding is that a fused upper jaw leaves Chomatodus as "shark like", not a true shark. From my experience its teeth are the most frequently found in the Burlington Formation.
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