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  1. Misha

    Chonetinella flemingi

    From the album: Misha's Carboniferous

    Chonetinella strophomenid brachiopods from Mineral Wells Fossil Park. Pennsylvanian Mineral Wells Fm.? Mineral Wells, TX. Thank you @Captcrunch227 for sending me these wonderful brachiopods
  2. Misha

    Petalodus sp.

    From the album: Misha's Carboniferous

    Tooth of Petalodus sp. cartilaginous fish from Mineral Wells Fossil Park. Pennsylvanian Mineral Wells Fm.? Mineral Wells, TX. Thank you to
  3. Misha

    Punctospirifer kentuckensis

    From the album: Misha's Carboniferous

    A pair of Punctospirifer spiriferid brachiopods from Mineral Wells Fossil Park. Pennsylvanian Mineral Wells Fm.? Mineral Wells, TX. Thank you @Captcrunch227 for sending me these brachiopods
  4. connorp

    Mazon Creek Flora

    I've been spending a lot of time lately studying the Mazon Creek flora, and am continuously astonished by the diversity and quality of specimens that can be found. I don't think we see enough plants on the forum, so I figured I would go ahead and share some of my favorite finds. First is a specimen I recently shared, and a fitting start to the thread. This is Crenulopteris acadica, the most common true fern found in the Mazon Creek flora. It has been the most common plant I find, accounting for probably half my finds. Next is a favorite of mine. This is a s
  5. oilshale

    Discoserra pectinodon LUND, 2000

    Taxonomy from Lund 2000. Diagnosis for the genus Discoserra from Lund 2000, p. 180: "Teeth of the premaxilla, maxilla and dentary long, thin, and styliform. Posterior end of maxilla does not extend back to level of anterior margin of orbit. Parietals excluded from contact in dorsal midline by postrostral 2, which contacts supraoccipital. No transverse supratemporal commissure in supraoccipital. Two rows of paired bones over orbit. One to three interopercular bones; two to three small postspiraculars and a presupracleithrum. Branchiostegals very variable in size, number and shape. Dorsal r
  6. Hello to all. This is my collection of flora from the Carboniferous period. This topic will be filled gradually - there is a lot of material. All material originates from the Araukarite Formation of the Gzhel Stage of the Upper Pennsylvania Carboniferous period (303.4 Ma). Unless otherwise specified, it means that the default sample is from this formation. The type of substitution is silicification (sometimes with ferruginization), sometimes with quartz crystals on the surface of the samples. Enjoy watching Part 1. Sample 1. Part of a branch of small diameter with a
  7. connorp

    Unknown Pennsylvanian object

    I found this specimen in Middle Pennsylvanian black shale in Illinois. It measures maybe 8mm in the widest dimension. Honestly not even sure if it's a fossil, never seen anything like it. Any ideas? Part Counterpart
  8. Hello to all. Although I exhibited this sample in the next topic, I think that it is worthy of a separate publication. For all the time of my finds, I came across such a sample for the first time. It is a long branch (about 80 cm) with a large knot in the middle. I had to tinker, extracting it from the red clay. It originates from the Araukarite Formation of the Gzhel Stage of the Upper Pennsylvania Carboniferous period (303.4 Ma). Found in the Donetsk region of Ukraine.
  9. Taxonomy from fossilworks.org. Synonyms: Lingula mytiloides Meek and Worthen 1873 and Lingula umbonata White 1884. From Lutz-Garihan 1979, p. 458: "Shell small, ovate, very light colored, preserved mostly as external or internal molds of undetermined valves. Posterior margins smoothly rounding into lateral margins; greatest width at mid-length or slightly toward anterior. Convexity of valve greatest along antero-posterior line at mid-width, and at apex, convexity then decreases laterally so that cross-section is almost an upside-down V. Surface marked by closely spaced growth lines.
  10. Runner64

    Mazon Creek Collection

    I'll update this thread with my Mazon Collection over the next few weeks. With some good weather out yesterday, I managed to get my first fossil hunt in for the season and will post a report in this topic. I will be moving this upcoming summer which will put me even further from Mazon Creek so I have purchased a few pieces to fill in the genus/species I haven't found yet and will mention if I purchased a fossil. I still hold out hope to find some of these pieces I purchased eventually but will realistically be difficult if I only can make 1 trip a year. Fauna Tullimo
  11. connorp

    Mazon Creek Lungfish plate?

    Had this concretion open today. I'm pretty confident it's something vertebrate. Maybe a lungfish plate? @jdp @RCFossils Thanks for any help.
  12. Together with Bryozoa and other Brachiopods. Taxonomy from Fossilworks.org, From Lutz-Garihan 1979, p. 463: “ Shell small; pedicle valve with moderately well-developed ears, convexity unknown because of deformation of shells, but umbo extends somewhat beyond hinge; greatest width at mid-length of valve; ornamentation of pedicle valve consists of rugae and growth lines, some rugae enlarged as nodes occasionally, and in some specimens, some costae develop at about half the distance from posterior but are somewhat irregular; relatively thick spines along hinge and irregularly across val
  13. A couple months ago I received a message from a friend letting me know of an opportunity to collect a usually inaccessible Mazon Creek site. The area used to be a popular with collectors but has since been reclaimed as a subdivision. A house was finally being built on one of the last undeveloped lots, and this meant spoil piles while the foundation was being laid. I initially planned to go later in the week, but instead decided to wake up early the next day and drive down. This ended up being a lucky decision, as the foundation was filled that very next night. The site was not superbly product
  14. Ahunt into the Mist today But i have found nice Alethopteris nice Eusphenoptheris But it was a great day for Lepidodendron! Good sigillaria nice calamites trunk a trigonocarpus(fossil seed) And why not minerals to make a change septaria(i neglected them,in the past)but these are very nice
  15. Nightmare on Lepidodendron Street. Call the exterminator; there is an 8.6 foot long, 110 pound millipede in my house crawling on the baby. Largest fossil invertebrate fossil ever found, found in England. Carboniferous of course. My note: extant giant squid are larger; I guess that there are no large fossils. The largest arthropod in Earth history: insights from newly discovered Arthropleura remains (Serpukhovian Stainmore Formation, Northumberland, England) Davies,Neil S. et al. Journal of the Geological Society(2021),:jgs
  16. Over the weekend I spent some time at the Burpee Museum of Natural History in Rockford, Illinois. My primary reason for visiting was to check out their local Ordovician fossils, but I was quite surprised by how large and comprehensive the museum was. Lots of great fossils and cool dioramas, definitely worth a visit if you're in the area. Diorama of the Ordovician sea Trilobites Crinoids and an edrioasteroid Cephalopods Bivalves and gastropods Receptaculitids
  17. I purchased this from someone in the UK that said it was Hexagonaria from Ireland. Does anyone have any idea if this is true?
  18. From the album: Robs Fossil Collection

    Carboniferous Crinoid Pachylocrinurus aequalis Found:- Edwardsville Formation, Mississippian, Carboniferous, Crawsfordsville, Montgomery County, Indiana, USA Size of Crinoid = 4 cm long. Overall Size = 5.1 cm (2 inches) wide by 5.7 cm (2.25 inches) high.
  19. I was inspired by @Mark Kmiecik and his quality photographs to finally learn some basic image editing. I had this beautiful Crenulopteris acadica fern open yesterday and figured it would be a good specimen to make a first attempt. Let me know your thoughts.
  20. Here are two upper Carboniferous Gastrioceras listeri Goniatites from the Lancashire coalfield (UK) which I have in my collection. I would be very interested to see other people’s Carboniferous Goniatites. Thanks, Daniel
  21. ThePhysicist

    Mazon Creek Fern

    From the album: Miscellaneous

    Pecopteris sp.? Mazon Creek Not experienced with flora, so ID is uncertain.
  22. Lucid_Bot

    Carboniferous Shells in Shale

    Hi! I was collecting plant fossils and found these shells. They are Pennsylvanian (Carboniferous), Conemaugh Group, Glenshaw Formation. I don't know what they are. Any help is appreciated, thank you.
  23. For the most part, fertile ferns are rare in the Mazon Creek flora. The only exception being Diplazites, of which ~1/2 of all specimens are fertile. This is my first non-Diplazites fertile fern. I really like the interplay between the white mineral deposits, the brown matrix, and the scattered pyrite crystals - a very artistic specimen I think. My best guess is that this is Cyathocarpus hemitelioides, but I am not positive. Close up of a fertile pinnule Close up of sterile pinnules at the base
  24. L.S., Hope someone might have an idea what these could be. This specimen comes from the Carboniferous (Westphalian D, Pennsylvanian) of the Piesberg quarry near Osnabrück, Germany. These little "pellets" are about 2-3 mm in length and preserved in illite (typical for the locality). I added one microscope image, but unfortunately they show little structure. Curious and looking forward to hear your thoughts! Kind regards, Tim
  25. Here is an odd-ball I found yesterday. Recently I found a new marine / brackish layer of dark gray shale. My first discovery was two root pieces, which I'll showcase at another time. I also found a tiny Glabrocingulum grayvillense (gastropod) there. This particular rock had a brachiopod on it, and I was getting a closer look. The matrix was soft enough to stab with my tweezers, so I was digging around the margins. This very tiny piece appeared that looked very interesting, and even more complex under the microscope. It's very small. The further out photo shows it with a 1 cm scale.
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