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  1. I am fortunate enough to have such a huge amount of Middle Devonian Givetian material that I thought it best to put the older Middle Devonian stage, the Eifelian, in its own thread. There are some spectacular fossils here as well though! I thought a good place to start would be in the Formosa Reef, which I believe is quite early Eifelian. This tabulate coral and stromatoporoid reef continues similar complexes found from the Middle Silurian, see my: https://www.thefossilforum.com/topic/84678-adams-silurian/page/3/ thread from page three onwards for details. All these Formosa Reef specimens come from a delightful gift from my good friend @Monica who is a tad busy with life at the moment but is fine and still thinking of the forum. This outcrop can be found on Route 12 near Formosa/Amherstburg, Bruce County, Ontario, Canada. This beautiful-looking specimen came to me with only a third of it revealed but I managed to get it this far after nine days of painful pin prepping. Monica found another one and posted it for ID here: https://www.thefossilforum.com/topic/105528-weird-circular-imprints-formosa-reef-lower-devonian/#comment-1172285 The specimen was identified by another Canny Canadian @Kane to be the little stromatoporoid sponge Syringostroma cylindricum. Hardly a reef-builder, but gorgeous nonetheless. It does have a little thickness to it, but not much. Beautiful! Pretty thin, actually. I love this Monica, thank you!
  2. Geo-Reinier


    Gastropoda Geology: Inferior Oolite Group Period: Jurassic Location: Bathampton, England
  3. Fullux

    Coon Creek Gastropod

    Howdy all, Here's another find I had in the Coon Creek Formation. Been trying to place it but I simply have no idea. Possibly Fasciolariidae?
  4. bockryan


    From the album: Fossil Collection: DC Area and Beyond

    Gastropoda Johnstown, PA Bush Creek Marine Zone Carboniferous (Late Pennsylvanian)
  5. bockryan


    From the album: Fossil Collection: DC Area and Beyond

    Gastropoda Lost River Quarry, WV Needmore Formation Middle Devonian
  6. cngodles

    Strobeus paludinaeformis

    From the album: Glenshaw Formation Fossils of Western Pennsylvania

    Scale bar = 5 mm. Pine Creek limestone, Armstrong County, PA
  7. bockryan


    From the album: Fossil Collection: DC Area and Beyond

    Gastropoda Maysville Roadcut, KY Kope, Fairview, and Bellevue Formations Ordovician
  8. bockryan


    From the album: Fossil Collection: DC Area and Beyond

    Gastropoda Gore, VA Mahantango Formation Middle Devonian
  9. bockryan


    From the album: Fossil Collection: DC Area and Beyond

    Gastropoda Maysville Roadcut, KY Kope, Fairview, and Bellevue Formations Ordovician
  10. UPDATE: This could be Murchisonia sp. which has been recorded from the underlying Dundee Limestone and deposited in the Ohio State University Museum of Biological Diversity. Hello, I found a rare conispiral gastropod steinkern in the middle Devonian (Givetian) Silica Shale of Paulding, Ohio, last week. It's the first strongly conispiral gastropod I've ever found in the Middle Devonian (let-alone the Silica Shale). I looked through the FUMMP online database as well as the "Strata and Megafossils of the Middle Devonian Silica Formation" published by FUMMP and couldn't find any taxa that looked like this. It has the general shape of Paleozygopleura known from the Hamilton Group of New York. Is anyone aware of a snail with this general morphology that has been reported from the Silica Shale? Scale in mm.
  11. I found this way back in the 1990's and just yesterday I finally finished up a most beautiful prep job. I found this in a box in my shed about 3 weeks ago. Besides fixing most of the things wrong with it, I also carved a stand for it from the concretion it was in. Made a 2.5 hour video of it too but not published yet. I have to say, even though this project took way longer than I had anticipated, it was a freakin blast to prep this out the way I did. This is the way it looked back in the 90's. and this is what it looks like now.
  12. Can you help determine if these are real as described and any steps I might take to further confirm the details? [seller verbiage removed -- Staff]
  13. Marco90

    Cassiope pizcuetana

    From the album: My collection in progress

    Cassiope pizcuetana Villanova 1859 Location: Teruel, Spain Age: 121 - 113 Mya (Aptian, Early Jurassic) Measurements: 9,6 cm Kingdom: Animalia Phylum: Mollusca Subphylum: Conchifera Class: Gastropoda Subclass: Caenogastropoda Superfamily: Cerithioidea Family: Cassiopidae
  14. ChasingGhostsYT

    Devonian Gastropod

    Been putting some hours in digging Montour Preserve. A few trilos have come out of the ground, but Mostly calcitic shells and crinoid. This one’s identity has eluded me so far and I has wondering if anyone could help me out. The site is part of the Devonian Mahatango formation in Upper PA
  15. I will be working in western Washington this summer and I was hoping to squeeze in a day of fossil or fossil nodule collecting. I am looking for recommendations for one day of recreational fossil hunting.
  16. mbarco

    Ordovician gastropod moulds?

    Upper ordovician, n-e Italy. I don't have the specimen (no scale bar was provided). In the ordovician couldn't be an Ammonoidea (and I don't think a coiled Nautiloidea). So I was thinking about Gastropoda. Fig.1 external mould. Central part removed. Fig.2 internal mould. Fig.3 external mould.
  17. 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 Missouri: • Smithville Formation • Powell Formation • Cotter Formation • Jefferson City Formation Enjoy and share as you like. Full citation: J. S. Cullison, 1944: "The Stratigraphy Of Some Lower Ordovician Formations Of The Ozark Uplift." The University of Missouri School of Mines and Metallurgy Bulletin Technical Series, Vol. 15, No. 2, 112 pp + 35 pl.
  18. Over the weekend I tried some new Fox Hills and Cannonball Formation sites as well as returning to a couple old ones. Most of the new Fox Hills site was covered in abundant Ophiomorpha, a decapodian trace fossil very typical for parts of the Fox Hills. Abundant free weathered pieces of the burrows. There was a rather large Crassostrea subtrigonalis oyster bed on the property. A common fossil in the upper Fox Hills but I don't often see them in the abundance of this site (fragments in the thousands). All white/sharp edges you see are oysters. The Prickly Pears are now fruiting here. I only grabbed a handful of the most attractive individuals. The black/grey sheen on some is very pretty. An Anomia micronema was attached to the matrix on one as a bonus.
  19. Mainefossils

    Platyceras sp.

    I have a nice little gastropod in my collection, from my most recent trip to the Leighton formation. I am pretty certain that this is a Platyceras sp, such as the one shown in the plate below, figures 23 - 24. Boucot, A. J., Yochelson, E. L. (1966) Paleozoic Gastropoda from the Moose River Synclinorium, Northern Maine. Geological Survey Professional Paper, 503(A). https://pubs.usgs.gov/pp/0503a/report.pdf I do not believe that specimens such as these have been assigned to species as of yet, and would greatly appreciate to hear any insight on their taxonomy. The lifestyle of these gastropods is pretty interesting. It is thought that they attached themselves to the anal plates of crinoids, to feed on their excrement. There is some debate, though, that instead this species was a suspension feeder, or was parasitic, boring holes in through the crinoid's shell. The picture below is of my specimen. The tip, unfortunately, broke off, but the rest of the specimen is intact, though it is laterally compressed. It is from the Leighton Formation, which is Pridoli, Silurian. Thanks for reading!
  20. Continuing from my recent trips to outcrops of the Cannonball Formation I made my way South towards the area of the Cannonball Formation type locality. I stopped at a couple roadcuts in Morton County on the way down but spent most of the day on the Cannonball River in Grant County. A burrowing owl off a country road. I believe this is Escobaria missouriensis among Cannonball sandstone. It isn't one of the species of cacti I frequently see. The only fossil that came from here is Nototeredo globosa bored wood(?). Pictures don't properly show how steep the outcrop at this site is. The only material found here was shell fragments that are fragmentary even by Cannonball standards. Most of the way up. From the top. Another hike in elsewhere and another Cannonball River cutbank. Trace burrows in a sandstone ledge that fell from the outcrop. There wasn't much here either, just some shell fragments. Pretty typical for the Cannonball in my experience.
  21. On July 1st, 2021, I went for the first time to a public, personal site and was very pleased with the results of my fossil excursion. The locale consists of several exposed formations, namely the Liberty formation I was hunting in. In my region of southwestern Ohio, that's known to be one of the best fossil-hunting formations due to its remarkable preservation of particularly fragile Ordovician life, even when compared to the excellent fossil preservation quality of other formations in the area. The thirty-three degrees Celsius heat was rather hot by itself, and as the sun's rays made me question my latitude, the rainwater in the ground from the rain several hours prior was evaporating and creating a blanket of humidity-saturated air which prevented my body from transpiring. That was lovely. On top of that, this was above a very tall cutaway, so there was this constant updraft of hot, humid air coming from the bottom. Needless to say, conditions were extremely hot and humid. A thermos filled to the brim with refreshing, ice-cold cranberry-grape juice was a lifesaver, as otherwise I would have certainly overheated and becoming a sizzling omelet atop a frying pan of Ordovician fossils under that laser of a sun! With that being said, this is my first post regarding a fossil hunting trip in three years! While I have not been active on this forum, my paleontological trips have been ever more numerous. I remember you all, as I have been secretly watching in the meantime. I am a fossil sniper, after all. I should mention that I am an adult now, and I would prefer to have the "Youth Member" tag removed from my name. I plan to conduct a full survey of my entire collection before attending university, so look out for that. My collection is considerably sizeable now, having nine years of fossil-hunting under my belt. Here are my finds! Best & rarest for last, though all of them are incredible in their own right. Every edge of a square on the grid is half a centimeter. Assorted rugose corals. Gastropods. Branching bryozoan. The central branching bryozoan specimen in the prior figure under 200x microscope magnification. The skeletal cavity wherein individual zooids once resided 440 million years ago are evident, each 0.2 millimeters in diameter. The sheer level of detail in the preservation is as mind-blowing as this fossil's age. This photo is the product of using a computer to compile 140 photos focused at different layers of the specimen, as microscopes have a very narrow depth of field. I'm sure you all find as this fascinating as I do, so I compiled a photo for you guys. Assorted brachiopods, with two bivalves on the top left. I collected some superb Rafinesquina alternata, which don't tend to come with both fragile and thin halves intact, together, and out of the matrix. There were also some Leptaena that I did not photograph, but were lovely and undulating. The rest are common genera here, except for the fourth one from the right in the bottom row and the partial one of the same species immediately northwest of it, which I would like help identifying. Expect to see it soon on the ID forum. Assorted associated, straight-shelled nautiloid cephalopod septa. A larger example of associated, straight-shelled nautiloid cephalopod septa and a partial living chamber. Calcified straight-shelled nautiloid cephalopod. I always love the crystals on these. Flexicalymene meeki on the left and right. The left one is perfect, and is a very large example of what I generally find--my largest self-found complete trilobite, in fact--so I'm very happy with him. The right one is heavily weathered along its left and right, but the medial length of the pygidium, thorax, and cephalon are all present in some way, and the pleurae and glabella are resonant with Flexicalymene meeki, and I'm very happy with him, too. Adorable, curled little finger hugnuzzles of the ancient sea. Drum roll please! Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 This is a huge living chamber of a straight-shelled nautiloid cephalopod! Unlike the septal segments, the living chamber is very fragile with its thin, unsupported walls. This means it is very rarely preserved. Hence, in my near-decade of fossil hunting, I have never found a complete living chamber with its outer shell included until now. Let alone of this size! The only reason this one survived is because of the encrusting bryozoan that grew over its walls and thus strengthened them after the animal died--Figure 5 demonstrates the layers of the bryozoan well. This is also demonstrated on the side without bryozoan strengthening it in Figure 4, and how it simply crumpled due to the weight of sediments that accumulated on top of it after the animal died. Interestingly, one side has much more encrusting bryozoan than the other--this suggests that immediately after the animal died, part of the shell was resting on the silt of the ocean floor, preventing bryozoan from growing on it. The contrast in the thickness of walls of the living chamber & encrusting bryozoan growth on opposite sides of the fossil is evident between Figures 1 and 2, where in Figure 1 the walls of the living chamber are quite thin (one can tell from the thickness of the dark cracks on the bottom left), whereas in Figure 2 the walls are visibly significantly thicker (and layered from the encrusting bryozoan, upon zooming in). Deducing all of this is so cool. Additionally, Figure 3 zooms in on the bottom left fraction of the visible living chamber in Figure 2, and it actually shows the bryozoan growing around the edge of the living chamber walls and into the living chamber. This means that's the very outer rim of the living chamber! (In Figure 3, the white line is the living chamber wall, and the layers around it are the encrusting bryozoan. The light tan stone inside is just limestone.) On top of the sheer rarity of a fossilized living chamber, especially of this enormous size, having the edge of the living chamber preserved with enough detail to show the bryozoan that that grew into it over its rim—almost half a billion years ago—fascinates me. To finish this post off, there really is a mystery in every fossil. With the encrusting bryozoan only growing one side of the living chamber in the final specimen, and the subtle, hard-to-spot detail of how it grew around the rim and into the living chamber, it's like every fossil is a murder mystery (literally) and we have to be Sherlock Holmes and figure out details about how the animal died. Considering this was 440 million years ago, we're all some pretty hardcore forensic scientists!
  22. Wentletrapper

    Florida Shell ID Help

    Hello All, A friend of mine recently sent me some fossils he found near his home in Florida. It was suggested to us that they were from the Tamiami Formation, from the Pinecrest Beds. I’m relatively new to the paleontology of Florida so I have no idea if this is correct. I’m hoping that the community might be able to help identify some fossils. I apologize in advance for the quality of some of these photos. Because of the coloration, getting clear shots was sometimes difficult. I’d be truly appreciative if, along with the name of the fossil, you could include the citation from where you found it, if possible, as I would like to start building up a bibliography of Florida fossil resources. All fossils were taken from spoil piles and surface collecting around building sites in Manatee County, Florida.
  23. Peat Burns

    DSR Gastropod (?)

    This one has me stumped. I think it is the body whorl of a gastropod (DSR, Middle Devonian, Hamilton Group, Moscow Fm., Windom Shale). It is smashed, but the full circumference of the whorl is present, which means the aperture has to be on the left (which is consistent with the direction of the growth lines) (see arrow). If that is the case, there should be a shallow furrow or ridge in the center of the whorl running parallel with the cords and perpendicular to the growth lines if it were something like Mourlonia or even a Bellarophontacea. I see no evidence of such, not even on the crimped / folded / smashed edges above and below. One would think that with such distinct surface detail that this one would be easy... Any thoughts? The fossil is about 46 mm in length. Scale in mm. @Jeffrey P, @Fossildude19, @Darktooth, @Kane Here is outer side of the shell. Here is the shell flipped over to show the other side of the whorl. I think the broken area on the right is where the body whorl continued to the second whorl (which is missing). Here is both views side by side: Here is where I believe the aperture is located (I have prepped to the edge of the shell, and the shell ends there).
  24. Peat Burns

    Briggs TFF Report

    This is a belated report from the Briggs TFF gathering last spring. Here are some photos of TFF'ers working the site: Here are my finds (not in phylogenetic order). Scale in mm throughout. I guess I'll start with one of my bucket listers, a large goniatite: Next, the trilobotes: And "those other arthropods": Now the gastropods: Other Mollusca: Crinoidea: Seedless vascular plant bits: I don't usually collect "hash plates" but such accumulations don't seem very common at these sites, so I picked up this nice one.
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