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Found 395 results

  1. I need help with this one. Ive been searching the internet; but there is precious little works on Lower Mississippian bivalves. So I thought Id turn to you guys either for an id or to point me in the direction of an expert in such things. Its from the lower Mississipian epoch of the Carboniferous. The Fort Payne Chert, the black shale member (not sure if that has a name.) Its fairly large for a bivalve from this time period. Im not sure if they are related but Ive also been finding these. I believe its also a bivalve but I havnt found more than one valve. They are a lot more common than the bigger one. With the similar concentric ribs, they may be younger versions; though the overall difference in shape makes me doubt it. I appreciate any help you can give me.
  2. Hello all! I recently found a new spot that turns out is Walnut Formation. Finding lots of nice stuff there...big Echinoids - Phymosomas, a Tetragrmma and some little Leptosalenia mexicanas. But I've found a few things that I can't ID. @erose - I relooked at the presentation on Albian crabs you did for the PSoA last month and thought this one was in there, but now I don't see it? I thought you had collected one like this.. Thanks for any help, y'all! This little Bivalve looks like a Plicatula but those are not found in the Walnut? (According to the Houston Gem and Mineral Society Bivalve Book) And this other bivalve - closest I can come up with is Lopha, but again, not listed in the Walnut
  3. So Many Minis!

    From the album Aurora/Lee Creek Mine Micro Matrix

    This assemblage came from one cup (about 340 ml) of micro matrix from Aurora Fossil Museum. Oddly, they are generally much larger than most of what I found in the rest of the matrix. They are all from either the Pliocene or Pleistocene. See album description.
  4. Silurian mollusk

    What type of mollusk is this? Oyster? Bivalve?Internal mold. Silurian Thanks for any help.
  5. Hello! I have collected quite many specimens with Trochactaeon snails from April to May 2020. They all come from the Upper Santonian to Lower Campanian upper Geistthal-formation or Lower Afling-formation of the Gosau of Kainach in western Styria. Some of the specimens contain abundant black, wavy, "folded", shell fragments. They seem to grow on the Trochactaeon snails in some places. They resemble small oysters in some ways. Unfortunately, I have not found anything conclusive about their identity. I found a pic in a paper of Kollmann (2014), with some somewhat similar, unidentified bivalves growing on an Upper Cretaceous snail (last pic). Other accompanying fossils are very rare fragments of phaceloid coral colonies (they to not grow on the snails, though). Any suggestions are highly welcomed! Thank you very much! Franz Bernhard First specimen is a double sided polished slab with abundant black shell fragments. Some of them seem to have grown on the Trochactaeon snails (epibiontic?). Here are some individual polished snails with bivalve fragments. Some of them seem to have grown on the snails (white polygons). The circular things in the middle left pic seem to be the same; there is a snail shell just a few mm below the polished surface at this spot (the specimen is very thin there). Rarely, also on weathered surfaces these bivalves(??) can be seen, growing on the snail shell. But I am not really sure, if this is the same thing as in the polished sections or if this is something else: This is the reference pic from Kollmann (2014), epibiontic bivalves on Nerinella grossouvrei. Thanks a lot!
  6. Rare complete bivalve from DSR

    From the album Middle Devonian in Central New York

    Pseudoaviculopecten princeps Middle Devonian Hamilton Group Moscow Formation Windom Shale Deep Springs Road Lebanon, New York Collected 7/18/20
  7. Hello all! This is a little photo project I've been working on for a while. When I first started Fossil Hunting I was content to collect whatever. Then I was excited about Identifying what I was finding. The education continued and now I work to identify the geological formations I am collecting in and am able to know what fossils to look for in what areas. The Pocket Texas Geology website is invaluable for finding out the formation of a specific area (while not 100 percent accurate, it's pretty good). So I wanted to create a post that would help with Central Texas Cretaceous Fossil Identification and this Species by Formation post. There are a couple of great websites for North Texas Fossil ID, but none (that I am aware of) for specifically Central Texas. I am considering Central Texas to be the counties of Hays, Travis, Comal, Blanco, Bexar, Kendell, Williamson, Hill, Burnet, Llano, Bell, Coryell, McLennon and Bosque. And bear in mind, this is not a comprehensive list of all species found in these formations...still working on THAT! But this is what I have found and ID'd so far. I believe it contains MOST of the more commonly found fossils, plus some uncommon fossils. If you see a mis-identification, please let me know! Also, there are more formations than I am presenting, but these have been the most accessible to me. I will list them by ascending order of time period. My time periods are approximate. (Be aware, I am not a geologist nor paleontologist, just an avid amateur, so take it for what it's worth! ) Cretaceous Formations: Glen Rose, Walnut, Comanche Peak, Edwards , Georgetown, Buda, and Austin Chalk. Glen Rose Formation 106-110 MYA (Upper and Lower Glen Rose combined here) ECHINOIDS Row 1. Row 2. Row 3. Row 4. Row 5. Row 6. 1. Hyposalenia phillipsae Echinothurid plates Plagiochasma texanum 2, Goniopygus sp. Pygopyrina hancockensis Paraorthopsis comalensis 3. Loriolia rosana Goniopygus whitneyi Pseudodiadema aguilerai 4. Polydiadema travisensis Leptosalenia texana Hetearaster texanus 5. Coenholectypus sp. Pliotoxaster comanchei Phymosoma texana 6. Cidarid sp. Heteraster obliquetus Paracidarid texanus ECHINODERMATA ETC. 1. 2. 1. Unknown Crinoid Isocrinus annulatus Echinoderm Madreporite 2. Balanocidarid Spine Echinoid Spine Balanocidarid Spine AMMONITES 1. . Engonoceras piedernales Hypacanthoplites mayfieldensis DECAPODS 1. 2. 1. Crab Claw Unknown Crab Claw Unknown Pagurus banderiensis 2. Pagurus banderiensis Pagurus banderiensis Pagurus banderiensis ETCETERA 1. 2. 3. 1. Porocystis globularis Fish Pycnodont Teeth Turtle Bone Fragment 2. Foramnifera Orbitolina (group) Foramnifera Orbitolina (single) Coral Heliopora labyrinthicum 3. Spirobus Worm Annelid Worm GASTROPODS 1. 2. 3. 4. 5, 6. 7. 1. Neritina sp Semineritina apparata Pleutomaria glenrosensis 2. Natica texana Nerinia texana Nerinia harrisi 3. Fusus haysensis Turbo cuyleri Anchura monolifera 4. Cerithium blancoesnsis Unknown Gastropod Unknown Gastropod 5. Nerinia incisa Pseudomelania pupoides Tylostoma traviensis 6. Natica traski Cerithium bullardi Nerinia aquilina 7.. Tylostoma turmidum Purpuroides harperi Lunatia praegrandis BIVALVES 1. 2. 3. 4. 5. 6. 7. 8. 9 10. Other Bivalves : 11. 12. 13 . BIVALVES 1. Lima wacoensis Arca texana Ludbrookia arivechensis 2. Trigonia whitneyi Exogyra paupercula Plicatula parkerae 3. Brachidontes pedernalis Chlamys santoni Granocardium pseudopendens 4. Neithia occidentalis Cardium congestum Arctica comalensis 5. Pinna comancheana Granicardium pendens Fimbria hamiltonae 6. Trigonia gordoni Homomya comalensis Laternula simodsi 7. Psilomya walker Trigonia wendleri Homomya knowltoni 8. Tapes decepta Panopea henselli Arctica texana 9. Psilomya banderiensis Protocardia texana Arca medialis 10. Cyprimeria texana Idonearca terminalis Arctica roemeri 11. Lopha comalensis Ceratosterean texanum Exogyra guadalupae 12. Peilinia crenulimargo Liostrea ragsdalei 13. RUDISTS: Monopleura sp. Toucasia sp. Kimbleia capacis
  8. Pterinopecten undosus

    From the album Fossildude's Middle Devonian Hamilton Group Fossils

    Pterinopecten undosus Rare, dual valve specimen. Middle Devonian Windom Shale. Moscow Formation, Hamilton Group. Deep Springs Road Quarry, Lebanon, NY. Found August 9th, 2020 .

    © 2020 Tim Jones

  9. Anuone have an idea what is this? The size is about 2cm. Martin
  10. I found these 3 silicified specimens of the extinct clam genus Myophorella, Order Trigoniida, in Cretaceous formations, near Chos Malal, Argentina, South America.
  11. fossilised nut?

    Found this little fossil in chert/flint gravel, and heard a rattling. Upon breaking open, there was a smaller lighter coloured fossil inside, leading me to believe it is some sort of nut. It has what looks to be a scar at the bottom, possibly for attaching? it split neatly along the line into two parts.
  12. I found this a few weeks ago at DSR on the NYPS trip to madison county. Im having some trouble ID’ing it. Doesn't seem to be anything like it in Karl A. Wilson’s Field Guide to the Devonian Fossils of New York
  13. I seem to be having a slow week at work, and didn't have much at home demanding attention, so I decided to spend a day fossil hunting yesterday. I got up with intentions of checking out a new spot on the NSR, but when I looked at weather radar, there were showers in that area. The parts of NSR that I have seen are pretty tough to get into and out of when things are wet, so I changed my mind and made a drive to Post Oak Creek. One trip this spring was the only time I'd been there, and I didn't know what to expect in mid summer, but it is one of the most fossiliferous places I've ever seen, so I was sure a trip there would be fun. And just like my first trip there, I found teeth. I've found very few teeth of any kind in all the other places I've fossil hunted, so I really enjoyed my time crawling on knee pads, looking for teeth. I considered bringing my sifter, but decided I would just stick to searching the sand bars. It was a dark day for the most part, with light rain on and off, so not the best day for trying to spot tiny teeth on the sand bars, but I did find enough to really enjoy myself, and the clouds did help keep the heat from getting too bad. The really small tooth in the upper left corner was the only Ptychodus tooth I found yesterday. Lots of the teeth are broken, damage from tumbling on the rocks, I guess. I always marvel at how sharp many of them are.
  14. Complete grammysia bivalve

    From the album Middle Devonian in Central New York

    Grammysia bisulcata Upper Ludlowville Formation Hamilton Group Middle Devonian Brookfield, New York Collected 7/18/20
  15. Shell Cast Fossil

    Clast bivalve....that is all I know about this specimen I collected. It is preserved very well. I found it in a spoil pile after they dug out a lake. It is my favorite shell fossil. If you could ID it for me, that would be super. Found in North Port, FL. 10 miles East of Venice, FL. The clast is 4inches x 4 inches x 4 inches. Other fossil material in that area ranges from Meg teeth, whale vertebrae, Equus. ID appreciated.
  16. Jurassic Bivalve ID

    Anyone able to help me classify this bivalve. I interpret it as some sort of Infaunal bivalve but could be totally wrong. The specimen was collected at Rhoose point on the Jurassic Heritage Coast Vale of Glamorgan, South Wales from the Blue Lias formation.
  17. Hi! I recently found some large nacreous bivalves, which are embedded in concretion-like cobbles. The matrix is very easy to remove, but the nacre starts flaking as soon as it is exposed to air. Is there a product to stabilize these without future discoloration? Thanks! (Also if anyone can identify, that would be cool--they come from near Scenic, SD)
  18. Whitby finds

    Fairly slim pickings today but we picked these up and don’t see so many of them. Any ideas on the bivalve? Is the ammonite Pleuroceras Solare ? Thanks for looking
  19. Devonian Bivalve? from Paulding

    I found this small "clam" last week at the Paulding Community Fossil Garden in Ohio. This specimen was found loose but likely came from the Silica Shale (Middle Devonian). It has a bivalve-y look, similar to the bivalve Mytilarca cordata which is known from here. However, the valves are not symmetric about the hinge line, although @Peat Burns suggested it could be a deformation. Any ideas are appreciated.
  20. Bivalves or brachiopods?

    I found these and am wondering if they are brachiopods, or just bivalves with symmetrical valves, as I have not yet found a brachiopod in this location yet. Sorry the photos are dark. Many thanks.
  21. Middle Devonian bivalve and gastropod

    From the album Middle Devonian in Central New York

    Gastropod: Bembexia sulcomarginata Bivalve: Nuculites oblongatus Middle Devonian Hamilton Gr. Marcellus Shale? Delphi Falls, New York Collected 5/16/20
  22. Hi Everyone, I found this specimen a while back and have been trying to identify it but have been unsuccessful. Its from a layer of shale within the Winterset Limestone, Kansas City group, Upper Pennsylvanian, Carboniferous. Scale in mm. I flaked it off a bigger piece that had bivalves in it which I'll post below. The depth of the flake is about 1/4th of an inch (6.35mm) thick. The fossil doesn’t carry through to either side of the flake. The piece at the top is the same specimen just what came apart when I cracked it. At the moment my guess is that it might be a bivalve of some sort but I can't find any that look similar. Here are some other bivalve species that were in the same section. The color difference is from me scrubbing it with a brush which removed the gray matrix. Any feedback is much appreciated as I can't find anything close.
  23. Brachiopod or Bivalve?

    Kiowa formation and Albian. Approximately 1.3cm long and its quite flat and thin. Not sure if it's brachiopod, more specifically a lingula brachiopod, or a bivalve. Unfortunately the umbo is missing so I'm not sure if it's symmetrical or not. I'm leaning more on bivalve but I would like to read your opinion. What's the lowest taxonomy level you can identify?
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