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  1. Buffalopterus

    Buffalopterus pustulosus

    Discovery of the rare and exotic Buffalopterus pustulosus from the Late Silurian of Ontario Canada In the Summer of 2018, while digging for eurypterids in the Williamsville Formation at Ridgemount Quarries in Stevensville, Ontario Canada a most unusual carapace was uncovered. This fossil was identified as Buffalopterus pustulosus (Chelicerata, Eurypterida) in Figure 1. James Hall in 1859 first reported the occurrence of Eurypterus pustulosus from a single fragmentary fossil, however, the most important characteristics were clearly defined, that is the form of head, the position of the lateral eyes, and the fantastic yet extraordinary pustules covering the carapace. Pohlman in the late 1800’s inaccurately described a similar carapace believing it to be a different species. He then studied another fossil (Fig. 2) consisting of post-abdomen tergites (body segments) concluding again that it was not E. pustulosus but instead belonged to the same species as his carapace. Pohlman assigned this genus to the pterygotids. Clarke and Rudemann (1912) determined that indeed all the fossils were synonymous and that the species represented was P. buffaloensis = Buffalopterus pustulosus. Hence, B. pustulosus is known from only a few fragmentary fossils. It is unclear as to what the entire animal looked like as no complete specimens nor identifiable appendages belonging to the species have ever been found. The carapace discovered by me is remarkable not only for its size but flawless preservation. The length of the head is 12 cm (4.75 in.) with a width of 19.0 cm (7.5 in.). The length of the entire animal is estimated to have been as much as 1 meter. Unfortunately, no other parts of the exoskeleton were found. Incredibly, a second, smaller carapace was found by another person a few weeks later but again no other body parts were recovered. Parts of the specimens were donated to the Yale Peabody Museum. Moreover, the late, Sam Ciurca believes the discoveries may represent the first known occurrence of the eurypterid in the Canadian Williamsville. It is interesting to speculate the morphology of B. pustulosus if a complete animal were ever found. Were the swimming legs equipped with paddles so typical of the eurypterids? What were the chelicerae like? Were they small and aligned with the mouth or did they become very large formidable grasping organs similar to the pterygotids with their large cheliceral claws? What was the shape of the abdomen? Was it covered by pustules like the head? Were the pustules simply ornamentation or did they serve another function? How about the telson, was it thin and straight or was it curved? Paleontologists may never know the true answers to these questions of a most aberrant sea scorpion. References Clarke, J.M. and Rudemann, R. 1912. The Eurypterida of New York. New York State Museum Memoir 14, vol 1-2. Fig. 1. Buffalopterus pustulosus carapace from the Late Silurian, Stevensville, Ontario Canada discovered by me. Fig. 2. Post abdomen body segments of Pterygotus globicaudatus Pohlman from the Buffalo Natural Science Museum, Buffalo, NY
  2. Collector9658

    A gander along the river

    I decided to take a trip out to the Mississippi River. With the weather warming in Missouri, the trees and plants are starting to grow and bloom once more. It is quite beautiful seeing some of the flowers and trees flourish, which I wish I had snapped some photos of. The downside to that, is some of my fossil hunting spots get quickly overgrown, or sometimes get submerged underwater. This trip was to check out an exposure of Silurian aged Bainbridge Formation rock. I had not been to this site before, so I was excited to get out and explore once more. After a nice walk to my destination, I found the exposed red rocks along the river I was looking for. Almost immediately, I found what I was searching for, trilobites! Calymenids are common in the right exposures of the Bainbridge Formation, but I didn't expect to see so many. 95% of the specimens found were weathered, damaged, and missing a lot of shell. Here's a few photos I took before I got overwhelmed by the sheer amount of trilobites exposed on the rock. See how many you can find in the first picture. You may need to enlarged the photo. I counted over 10. And the search was on! The goal was to find a nice, complete specimen or two to take home, clean, and then compare to other Calymenid trilobites I've found in different exposures of Bainbridge Formation rock. I spent the warm and windy afternoon hunched over, scouring over all the exposed bedrock. After hours and counting over 100 poorly preserved specimens, I finally found a nice looking one worth taking home. It had a little bit of weathering, but looked to be all there. Many of them were exposed in this sort of flexed position. A bit of noise, and I extracted the specimen. This is a nice one I'll hopefully get a professional to clean, so I carefully packed it up and continued my search. A nice cephalopod, and a few crinoid holdfasts were also exposed atop the bedrock. They were both pretty cool to see, especially that cephalopod fossil. Like trilobites, they aren't things I get to see everyday. I didn't find anymore good trilobites exposed and I didn't want to split rock, so I shifted to flipping over and looking through the river tumbled rocks for a while. The 9th rock I had fllipped over, looks to have a ventral trilobite on it. The luckiest, and cutest find was this little .3 inch Calymenid trilobite that was washed along the riverbank. I have no clue how it hadn't been destroyed from the river, but I was quite happy to find it. Note how it's exposed in the similar flexed orientation as the last one I found. One other interesting rock on the riverbank that probably has a complete specimen within was found. It had a few pleura segments and part of the pygidium exposed, but I forgot to photograph it. I'll upload a photo of it when I get home and unpack it if I don't forget. It was great to get back out to the Mississippi River. I always enjoy nature, solitude, and fossil hunting. I avoided ticks this trip, but not the mosquitos! A good afternoon spent, I decided to pack up my belongings and head back to St. Louis for the night.
  3. Tidgy's Dad

    ADAM'S SILURIAN

    Hoooooooooooorrrrrrrrrrrraaaaaaayyyyyyyyyyy!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Here we are at last, into Adam's Silurian. Thanks for looking. First up is the Lower Silurian or Llandovery and I begin with a problem. I posted this one incorrectly in Adam's Ordovician as it had got it's label muddled up with an Ordovician Favosites I had that has vanished in the move here, but is being replaced by kind forum member @Herb Anyway, this, I remember now I've found the correct label, is from the greenish Browgill Formation, part of the Stockdale Group from a cutting near Skelgill (Skelghyll) in Cumbria, Northern England. It seems to be a tabulate coral, but I can't find any listed for this location, only mentions of small, rare, rugose corals. It has the star shaped corallites of a Heliolitidid, but seems to be tightly packed together like a Favositidid. A couple of species of Palaeofavosites seem to be close and are a bit star-shaped,, but anyone know any better? @TqB@piranha hmm who else? The coral bit, an external mold, is a maximum of 3.5 cm across and each corallite up to 2 mm.
  4. JacksonR

    Microfossils

    I dissolved limestone from Michigan in acetic acid and got some interesting things, among them these. The source for the limestone is unsure of their exact age. Ordovician-Devonian. Any ideas?
  5. Fullux

    Silurian?

    Howdy all, I've got quite a few fossils I found in McNeely Lake Park and I'm curious if the age is correct and if any of these could be given an ID.
  6. bockryan

    Astraeospongia sp.

    From the album: Fossil Collection: DC Area and Beyond

    Astraeospongia sp. Decatur County, TN Beech River Formation Silurian
  7. Hi everyone, does anyone know what happened to William Hessin's publication "south central ontario fossils" or the website where one can purchase his publication either by book or cd? I wish to obtain a digital copy of his book and if anyone can provide me with a way to contact this guy that would be great.
  8. I went to the beach in Doctors Park in Fox Point, WI over the weekend to hopefully find some Silurian reef fossils. Most of the stuff I saw were poor-quality brachiopod fossils, but I these look kind of interesting. I think the first one might be some kind of a coral, but it does not match any coral fossil descriptions I found on online guides for the area. Yet, it looks more organic the usual porous rocks I on the beaches. I don’t know what it make of the smaller one: it seems to have more of a pattern than the typical rocks I find that look like a bunch of clams fell into a concrete mixer. But, again, it does not match anything else in the local guides. Also, if anyone knows, what kind of rocks typically bear fossils in this area and how to you go about opening them? I’ve only ever used the freeze and thaw method for concretions I found on Mazon Creek, IL, but the stones I find here are completely different.
  9. Hello, I went to Wenlock Edge in Shropshire a few days ago and collected some fossils. We're all confused as to what this one could be? It's around 5-6cm across. Thank you!
  10. I'm currently working on a simulation of extinct biomes, i'm slowly learning how to make everything as realistic as possible for realtime 3d simulation. I would like to start with plants recreated from some Silurian, lower devonian and upper devonian, and slowly working to recreating the biomes in the areas where they lived and later i'l like to add animals aswell. All my research is made with google i'm not a professional in archeology or 3d art, some of the models are very simple and unpolished for now and will be updated. The project is in the early stages for now but it runs very well on most pc's Here are ome of the plants that lived in the late devonian Tetraxylopteris and leaf detail Archeopteris and branch detail Calamophyton Protolepidodendropsis Uang (China) Weylandia rhenana Aneurophyton Wattieza Leclercqia
  11. EDIT... never mind I found it... "Kinneyia" and this was the paper. Thanks Folks! original post below.... Blair County, Pennsylvania, USA Hi folks, long time no see. I think the sandstone is from the top of the Keefer subunit at the top of the Clinton Group. Under someone else's post a few years ago, I recall someone giving this pattern's name, and also a discussion whether current thinking is that it is microbial/algal or trace or records a seismic shock. I can't find any of that anymore, and I just can't remember.. Can any of you remind me what this pattern is called? Extra points if you might still have link(s) to papers mentioned in the earlier discussion. Thanks~ PS samples are different rocks, and are both from (or in) the float. The patterned surface is the bedding plane
  12. ClearLake

    Waldron Trilobite (Silurian)

    I have a partial trilobite cephalon that I collected from the Waldron Shale spoils piles at Falls of the Ohio State Park. Since it is not directly from the quarry wall, there is some uncertainty in the stratigraphy, but it is likely Waldron or the overlying Louisville Ls. both of which are right near the border between Lower and Upper Silurian. Hopefully there is enough here to give a shot at an ID. The best I can do is say it could be Metopolichas breviceps but there appear to be some differences. Hopefully someone like @Kane or @piranha or @Ken K can see enough here to have an opinion. If not, "Trilobite Head" it will be called. Thanks for any help. Here it is enhanced a bit hopefully so you can see it better. You can see by the scale that it is under 1 cm wide. My stab at an ID initially came from Halls 1879 publication on the Waldron. Below I have my specimen between the figure out of Hall (on the right) and an example of one from the American Museum of Natural History website (left). The AMNH site says this specimen is the only known complete example which just adds to my doubt on the ID, but I have not found a more common, better match. And lastly, here is a zoom in of the cephalon to hopefully show the small bumps covering it. Thanks again for any help.
  13. Hello to all. The Acastella trilobite from my own collection. Well preserved. I tried to get close-ups of the eyes and some small details. Place of discovery: outskirts of the city of Kamenets-Podolsky, Khmelnitsky region of Ukraine. It was not possible to determine the exact age (Silurian or Devonian). Have a nice day 1.mp4 3.mp4 4.mp4
  14. Collector9658

    Trilobite sections

    I collected some trilobites last year that I have now sent out for preparation. Most of the specimens I found were by splitting rock, resulting in some nice lengthwise cross sections but I also did find one ventral and one dorsal example as well. I wanted to make a post here so I can share the before and after results. Will update this as time goes on, and pieces are finished. #1 ventral #2 dorsal Did a small amount of cleaning on #2. Will let a professional do the rest of the bulk cleaning. #3 I gifted this specimen to a gifted preparator. It looks to be a complete, but small Calymenid. #4 the largest Calymenid I split out. This should be a nice complete specimen. #5 has 2 complete Calymenids, in three pieces of stone. The second specimen cannot be seen, but is underneath the split rock in the first image below. I suspect this one will be a tricky and difficult prep job if both are to be cleaned and seen. #6 this Calymenid is small, complete, and somewhat enrolled. #7 the specimen I am most excited about. This doesn't match the Calymenid cross sections shown above. Perhaps a Dalmanatid? I dont think a complete one has been collected here yet, so chances are pretty slim. That's all I've sent out for now. Many of these sections are very difficult to see without certain lighting and wetting, but I tried my best to showcase what I've been looking for in the rock. I look forward to sharing the results with all of you soon!
  15. L.S., Wanted to raise some awareness on TFF because I expect many here will simply love this: A good friend of mine, Iris van Zelst (geophysicist at the German Aerospace Center in Berlin) has developed this really nice card game centred around the geological time scale: QUARTETnary The gameplay is based on the classic game Quartets (similar to Go Fish and Happy Families), where players try to collect as many sets of four cards as they can. In QUARTETnary, each of the sets represents four major events that took place during a specific geological time period. To win the game, you need to create the most complete timeline of Earth history, all the way from its formation 4.567 billion years ago to the appearance of us humans. The cards have been designed by Lucia Perez-Diaz (Earth scientist and freelance illustrator from the UK). The illustrations look amazing and I really like that they adhered to the official colour scheme of the International Commission on Stratigraphy. Iris sent me this nice set of cards for the Proterozoic: The game includes 15 sets of four cards in total (many featuring fossils): one each for the Hadean, Archean and Proterozoic eons, and one each for the 12 periods of the Phanerozoic. I expect QUARTETnary will become a really fun way to learn about and memorize the different geological units and major events in Earth history. Kind regards, Tim
  16. September found me exploring a rock formation I had never encountered before, the Waldron Shale of Indiana. It was impressive, offering up many gems (fossils). This post is picture heavy but stay with me!!!!!! First up is a typical hash plate. I am usually attracted to hash plates but discovered only one came home with me. Next time It will be a priority to collect more! Next up are the brachiopods of the Waldron, many of which were identified by the help of Adam's Silurian post. He will likely have some corrections for me, which I will welcome! Most specimens contained a mineral crust that took some effort to remove. The results were worth the effort. The next brachiopod I labeled Homoeospira, but these were definitely wider than the ones above. Notice the two ribs in the sulcus on the next brachiopods: Only 1 rib in the sulcus on these: Atrypa was the most frequently found larger brachiopod: My guess is that these are some form of Stegerhynchus but are much smaller and very thin: Rugosa coral was an uncommon find for me. Favosites, on the other hand, were found frequently: This tiny favosite grew around a crinoid stem: As for Bryozoa, I picture this unique one. It grows around a piece of algae. The algae dies, leaving the bryozoan standing hollow! This is the only species of sponge found: Initially, my thoughts were that the next specimens were TINY horn coral. But after seeing specimens of Cornulites from the Waldron on line, my thoughts changed. I welcome opinions on this! While collecting, I did not know a cephalopod ended up in my bucket. It was tucked in some matrix saved for another fossil, only to be discovered when I broke apart the rock at home!! This happens to me quite often and is why my tendencies are to save the whole piece of matrix a fossil is in until I prep it at home. Surprises then can happen. The species of ceph eludes me as it does not match the ones mentioned existing in the Waldron Shale. Trilobites seem to be commonly found in the Waldron, so I was a bit disappointed not coming home with a complete bug. Next time!!!! For some reason, I found 4 loose eyes of Glyptambon and almost left them behind. But after they were cleaned, I am glad to have kept them. Platystoma are common gastropods found. If you look closely, the flat spirals are P niagarense and the raised spirals are P plebelum: This next gastropods, Strophostylus cyclostomus, are very tiny (4mm) and ornate. My favorite: P:yrite seemed to grow on all of the fossils and needed to be removed. But once in awhile, some beautiful crystals would show up! And in addition, an occasional geodized brachiopod would be found: I will finish this post in a few minutes!!!!!!!!!!!!!!! Crinoids left to come.
  17. Hello, I noticed this (referring to the long darker line with the circles in it) in one of the shell beds that I collected from Mortimer Forest a couple weeks ago. It doesn't really look like a shell, or part of, to me, so I'm very confused as to what it is. Thank you!
  18. I am getting ready to leave for a fossilhunt this morning. I am heading to the Rochester Shale, to dig up some Silurian treasures. Currently waiting on a friend to get here and then we will make our journey. I am very excited to get out today. I will post a report when I get back!
  19. Hello, For a trip for my birthday, my girlfriend and I went to Mortimer Forest in South Shropshire to look for fossils, and we came across quite a few, and as I am very new to fossil collecting (only have been interested within the past few weeks, and I got the DK Fossil Handbook earlier today), I'm not entirely sure what most of them are. I've made a link to an Imgur album for all of the fossils we collected. The caption for each photo is my best guess at an ID, and the numbers denote which rocks they are in. Most of the fossils were found in/by streams, although some were found on the ground by some exposed bedrock. Thank you for reading, and I hope you can help https://imgur.com/a/sT1T0bg
  20. Hello, I recently collected a stromatoporoid fossil from Mortimer Forest in Shropshire, UK. I've since bought some general ID guides to help me with my other fossils, and in the one I'm currently using (Atlas of Invertebrate Macrofossils by John F. Murray) all of the stromatoporoid photos look to be thin sections under a microscope. I've also found a couple sources online that say stromatoporoids are identified using thin slices under a microscope. Unfortunately I don't have access to a high-powered microscope nor equipment/knowledge to produce those thin slices, and so my question is can my ID be taken further than stromatoporoid? I have a x15 hand lens but that is of course nowhere near a microscope. I think by using the general order descriptions in the Atlas I could try, but I'm not sure... Thank you
  21. Is this some kind of plant fossil, or just a weird-ish rock? It was about 15mm in length. Original photo: Brightened photo: Thank you!
  22. bockryan

    Crinoidea

    From the album: Fossil Collection: DC Area and Beyond

    Crinoidea Romney, WV Tonoloway Formation and Helderberg Group Late Silurian/Early Devonian
  23. Found this specimen in Pike County, PA. Here are some photos from different angles! This fossil has taken me in all different directions with regards to research. I have been unable to discern what this find may be. If anyone has an idea, I’d love to hear it! (My guess) Lepidodendron or Archaeopteris sapling branch??
  24. Some unidentified spicules from the middle Silurian Racine formation. All specimens measure approximately 250 - 500um.
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