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Found 13 results

  1. Location is in Missouri The area is dated to the Pennsylvanian most likely Raytown, Wyandotte Limestone I have found a few Prehistoric fish teeth in the area such as Orodus, Acrodus, Petalodus and some of their fragments. I believe the right sided one could be a Petalodus but I was not sure since I have not found a black tooth in the area besides this fragment. As for the left, I have no idea but I did note it had beautiful dimples along its surface. While they may be broken I hope that they can provide enough detail for identification! front side backside, left image has my camera flash on
  2. Petalodus teeth? ( Missouri )

    Location is in Missouri The area is dated to the Pennsylvanian most likely Raytown, Wyandotte Limestone Hi I was wondering if anyone was able to identify these teeth I found together at the rock pile I hunted at, the right I believe could be a poorly preserved Petalodus tooth with its root and as for the left I have no idea and could be from a Petalodus if not the same one? I am not sure as I am not an expert at identify odd looking teeth yet. If possible I would also like to know the tooth placement if it is able to be determined. Thank you for taking your time to read this! I have found shards from Petalodus teeth in the area and 1 almost complete specimen, but none look like the two teeth I found below Backside of the right specimen Close up picture of the specimen on the left backside of the specimen on the left I held them on their side so the tip would be more visible and you could see more details
  3. I've found five Petalodus teeth and have been spending a lot of time reading research papers on them. I got the idea of trying to get released photographs for the 16 holotypes of named species within the Paleobiological database. I got the 16 named species from a list here: http://fossilworks.org/?a=referenceInfo&reference_no=42606 Petalodus ohioensis was easy enough to find, Yale publishes some of their collection online. Unfortunately the one in their collection is only a cast. The original may be lost. This paper has a few, including ohioensis. Taxonomic validity of Petalodus ohioensis (Chondrichthyes, Petalodontidae) based on a cast of the lost holotype – K. Carpenter, W. Itano Here are the 16 I am trying to get. I've asked permission for allegheniensis and I have ohioensis. I need to see if there are holotypes for the other 14 and which collections they are stored. I would love to create a public open web page that shows all 16 (if they exist). Petalodus acuminatus 1836 (Agassiz) Petalodus allegheniensis 1856 (Leidy) Petalodus arcuatus 1870 (St. John) Petalodus curtus 1870 (Newberry and Worthen) Petalodus davisii 1889 (Woodward) Petalodus flabellula 1889 (Woodward) Petalodus grandis 1883 (Davis) Petalodus hastingsiae 1840 (Owen) Petalodus hybridus 1875 (St. John and Worthen) Petalodus jewetti 1957 (Miller) Petalodus knappi 1879 (Newberry) Petalodus linearis 1838 (Agassiz) Petalodus linguifer 1866 (Newberry and Worthen) Petalodus ohioensis 1853 (Safford) Petalodus proximus 1875 (St. John and Worthen) Petalodus sagittatus 1843 (Agassiz) I am going to continue down the road, but figured I would raise the issue here. One road block is that some of the original teeth may be described in non-english research papers. Thank you!
  4. Over the past year, I've become fascinated with the often bizarre fish and sharks of the Pennsylvanian. Fortunately, my home state of Illinois is a great place to hunt for such fossils. I've shared several of these in other posts before, but wanted to put everything together in one thread. Probably won't have much to post for a few months after this, but once summer rolls around, I should hopefully have plenty of new finds to share. I would say there are three major settings in which you can find fish fossils in Illinois: Mazon Creek, black shales, and limestone. I have not had luck at Mazon Creek yet, but hopefully that will change. So I'll start out with the black shales. These specimens, my first fish fossils, were collected in August 2019 from the Mecca Quarry Shale exposed at a clay quarry in Utica, IL. This shale directly overlies the Francis Creek Shale (i.e. Mazon Creek) at this location. The three specimens below are stomach ejecta from some kind of fish, and are composed mostly of partially digested fish scales. In addition, I found this very nice pair of associated acanthodian fin spines. The top fin has an area showing damage, possibly due to predation.
  5. Petalodous Teeth

    To date, I've found 4 teeth, all in the same general area. One is shallow, the others are a big longer. The 3rd is a bit broken, I don't think I have a photo online right now of it. All are attached firmly to the limestone and I don't have any hope of ever getting them out clean. 1st Tooth: 2nd Tooth: 3rd Tooth No photos of this one. Sorry I promised 4 teeth, sadly only photos of three. 4th Tooth:
  6. On my way out of town after a family gathering at Starved Rock State Park (it was packed like crazy with people, but I was still able to get a quiet hike in early Sunday morning with my mom. The food at the Lodge is not bad at all, also!) I made time to stop by one of my favorite sites, a roadcut near Oglesby, IL. This steep, talus-covered slope is known to produce generous quantities of brachiopods, as well as rarer shark teeth, cephalopods, echinoderms, trilobites and coral, among other things, primarily from the Pennsylvanian La Salle Limestone Member of the Bond Formation. With the wet weather this year plants had grown wildly over the slope, but there was still plenty of rock to explore. I got out of my car, jumped over the little brook running through the ditch, and made my way up the slope. As erosion slowly eats away at the bluff, fresh boulders fall away and expose new things. A large section had fallen last year, and at the top of the slope I saw another section perilously close to breaking away, so I steered well clear of it. Caution is definitely required at this site, especially because of the risk of rock fall near the overhang, but also the danger of slipping on loose rock and falling- a good sense of balance is very helpful! Working my way carefully along the cut I began to find some interesting things. First up was this hash plate- it doesn't look like much here covered in mud, but in the middle are some Archaeocidaris sea urchin spines, and it also features a number of crushed brachiopods, including some with spines, as well as crinoid stem pieces and other bits. I have started cleaning it up, so I will need to take a picture of it after I'm done.
  7. Crinoid and Petalodus Tooth Help

    I am looking for some help on a couple small pieces that I just happened to buy today when I stopped in a small store. I normally would not buy things without proper id’s, but the prices were right. Scale is in inches- The first piece has what I believe are two different Crinoid calyx- the tag stated that it came from Grantsburg, Indiana and it also had “Haney Fm.” Written on the tag. This was on the back of the plate.
  8. Cen Tex Family hunt

    We are finally having a little winter weather and the kids and grandkids were here over the last week so the house was getting crowded. We got the kids out for a couple hours to let them run off some energy, at least that was my excuse for a short hunt at a spot near Lake Brownwood here in cen Texas. Kids found a lot of stuff mostly gastropods, crinoids, etc. but my son found a good petalodus. My wife was there so we got a few pictures. It was about 32 degrees with some wind so we only stayed about an hour and a half but I would have stayed longer of course.
  9. Well my family was delayed for a couple days so Christmas day was about 50 degrees and sunny and I was tired of being in the house. I went out to the pit in Coleman County to see what I could see. I don't know if yall have had those days where your fossil radar is broken but I was having one of those days. Had been looking for a couple hours and had not found anything to speak of. Was just about to walk back to the truck but decided to crawl up under some brush that was kind of off the beaten path and got lucky. Its missing some enamel but complete otherwise. Better to be lucky than good.
  10. Cen Tex, Petalodus

    Went out for a short hunt Sunday after church and found one big broken up Petalodus. I thought I was one rainstorm to late on this one when I saw it because I did not think all the pieces would be there. Got home and was pleasantly surprised that it came out pretty complete. This was found in Brown County, "Penn" near lake Brownwood. Kind of ugly but its big and from a site that I have not found complete ones before.
  11. A surprise find a few days ago in a Brigantian (middle-upper Mississippian) marine shale, Co. Durham, UK. I've been collecting at this locality for years and it's the first tooth I've found there. It's fragile, the left hand side and ridge at the base of the enamel was broken into small blocks and flakes, mixed up with a load of shale fragments. I bagged it all up and spent a happy afternoon gluing it and prepping out the rest. Some knowledgeable friends have helped out with the ID and it's probably Ctenopetalus/Petalodus serratus Owen, depending on which genus is currently in use - I've been told that it may be Owen's original Petalodus again. (It has also been called Ctenoptychius). 42mm across and satisfyingly chunky. (I read that they can be more than 100mm...) Awkward to photograph, it mostly looks black against the black matrix and doesn't show up well but with certain light the enamel reflects brown. Finished,: As found:
  12. With the rain earlier this week and the sunny, clear, and cool weather yesterday, I decided to take off a day from work and go rock hunting. I decided to head to the Sulphur, IN road cut. A few days before, I reviewed the paper linked from the Falls of the Ohio web page. I had been to Sulphur once before, so I had a small collection of blastoids, some small brachiopods, and some crinoid stems. After rereading the paper, I really wanted to find some of the less common fossils at this site: a shark tooth and a trilobite. Secondary goal was to find a crinoid stem and calyx on a plate. I arrived a little after 10am. Pulled on my jacket, backpack, and hat and climbed up the rocks to the shale layer. Found some little blastoids, bits and pieces of crinoids. Then, to my amazement, I found this: Can you guys confirm that this is a trilobite piece? I've only found them at St. Leon before, and this looks different from those. I carefully deposited that in my tacklebox and moved on. Just a few minutes later, I found my largest blastoid (the one on the left): I kept hunting the shale layer, then moved up and investigated the upper limestone a bit, but it was not productive. Took a break, ate a Clif bar, drank some water, and walked around the bend to hunt the other end of the road cut. Eventually the shale layer reappeared and I found some more small blastoids and a small plate with a crinoid stem and crumbled calyx. I stuffed the plate in my backpack, hence no photo yet. Kept hunting the shale and something weird caught my eye. At first glance, I thought it was a large bryozoan, but for some reason it was very black. I picked it up for a closer look, that looks like a...holy cow!! I found a Mississippian shark tooth!!! Best I can tell, this is Petalodus? I was already tired and hungry, and now I was scared my tacklebox would get dumped accidentally, so I called it a day. I was am really happy with the tooth and what I think is a trilo piece. Both uncommon fossils for this site. I never thought I would actually find a Mississippian shark tooth. Especially one that appears to be complete, no breakage. Is it safe to say that Petalodus is a fairly uncommon fossil? I only saw 4 listed on Ebay and a small number on private seller sites. Not interested in selling, just trying to assess how common/rare it is.