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  • *Pseudofossils ( Inorganic objects , markings, or impressions that resemble fossils.)

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  1. The winner of the December 2021 IPFOTM goes to... Dipleura dekayi trilobite - Devonian, Moscow Fm - New York Congratulations to @KompsFossilsNMinerals !!!
  2. Hardly anybody ever talks about the Cambrian fossils of the southern midcontinent (USA). They're super-underappreciated. Show us what you've got! Here's one to start us off: Thorax and pygidium of a trilobite, possibly Orygmaspis, typically referred to as "Orygmaspis cf. Orygmaspis llanoensis" but probably a different species altogether. Note the two pairs of macropleural spines marking the final thoracic segments. Davis Formation (late Cambrian: Furongian), south side of Highway 8, St. François County, Missouri.
  3. Check the entries below carefully and cast your vote! PM me if you notice any errors with the entries. The poll ends January 9th. Be sure to vote in our other FOTM poll, HERE 1. Asteropygine trilobite (Greenops sp.) - Devonian, Mahantango Fm (387 Ma) - Pennsylvania 2. Dipleura dekayi trilobite - Devonian, Moscow Fm - New York 3. Pagurus banderensis hermit crab claw - Cretaceous, Glen Rose Fm - Texas 4. Fenestella sp. bryozoan - Pennsylvanian - Missouri
  4. The winner of the November 2021 IPFOTM goes to... Urasterella montana starfish - Upper Carboniferous (Pennsylvanian) Kasimovian stage Kreviakian substage - Kasimov town, Ryazan region, Russia Congratulations to @Kanopus !!!
  5. In the September 2021 issue of "Natural History" magazine, there's an article, "The Trans-Saharan Seaway," by Devin Reese, Robert V. Hill. and Leif Tapanila. Anyone who collects fossil shark teeth knows Morocco and other parts of northern Africa were submerged by an inland sea as recently as the early-middle Eocene but there was also an arm of the sea that cut south all the way from what is now Algeria to what is now the Gulf of Guinea. The article summarizes the work of a team of geologists and paleontologists across a ten-year period in the early 2000's. It reviews a number of fossil find
  6. The winner of the October 2021 IPFOTM goes to... Spider, indet. Chelicerate - Miocene, Messinian Stage - near Murat, Cantal Dept., France Congratulations to @marguy !!!
  7. Photographed this is a river bed near Methven, New Zealand. Approx 28 cm in length. My first impression is overlapping horseshoe crabs.
  8. Check the entries below carefully and cast your vote! PM me if you notice any errors with the entries. The poll ends December 9th. Be sure to vote in our other FOTM poll, HERE 1. Urasterella montana starfish - Upper Carboniferous (Pennsylvanian) Kasimovian stage Kreviakian substage - Kasimov town, Ryazan region, Russia 2. Coilopoceras inflatum ammonite - Upper Cretaceous (Turonian), Mancos Shale, Juana Lopez member - Sandoval County, New Mexico 3. Delocrinus vulgatus crinoid cup - Upper Pennsylvanian, Harpersvi
  9. Hi, I'm looking for help locating a plate that seems to be inexplicably missing from the online version of a classic trilobite paper. The plate I'm seeking is PLATE XXVI (26) from Lehi Hintze's 1952 paper Lower Ordovician trilobites from western Utah and eastern Nevada. Utah Geological and Mineralogical Survey Bulletin 48: 249 p. The only online version I've found, which seems to be missing plate XXVI, is here: https://ugspub.nr.utah.gov/publications/bulletins/b-48.pdf If anyone has access to a paper copy and can post a scan of PLATE XXVI (26) here
  10. Check the entries below carefully and cast your vote! PM me if you notice any errors with the entries. The poll ends November 9th. Be sure to vote in our other FOTM poll, HERE 1. Uddenites sp. goniatite - Pennsylvanian, Finis Shale - Texas 2. Spider, indet. Chelicerate - Miocene, Messinian Stage - near Murat, Cantal Dept., France 3. Greenops sp. trilobite - Middle Devonian, Windom Shale - New York 4. Echinocaris punctata phyllocarid - Middle Devonian, Windom Shale - New York
  11. The winner of the September 2021 IPFOTM goes to... Carneyella pilea edrioasteroid - Late Ordovician, Bellevue Formation (452.0 - 449.5 Ma) - Mason County, Kentucky Congratulations to @fossilcrazee !!!
  12. facehugger

    Tetragamma Tease

    The last weekend of September, I decided to visit some of my central Texas sites. I had been looking for a tetragamma for some time - the first one I found was collected illegally, totally by mistake, on federal property. And it was far from a perfect specimen. Well, after a few years of being teased by broken tetragamma bits, I found this beauty. I believe this is a tetragamma streeuwitizi - collected from comanche peak limestone. Please forgive the situ pic, motion picture was activated, and the sun was too bright to tell that it was a poor quality image until later.
  13. Check the entries below carefully and cast your vote! PM me if you notice any errors with the entries. The poll ends October 9th. Be sure to vote in our other FOTM poll, HERE 1. Carneyella pilea edrioasteroid - Late Ordovician, Bellevue Formation (452.0 - 449.5 Ma) - Mason County, Kentucky 2. Mesostylus faujasi shrimp claw - Nekum Chalk, Maastricht Formation, Cretaceous (68 Ma) - Romontbos Quarry, Eben-Emael, Belgium 3. Pulalius vulgaris crab - Lincoln Creek Formation, Paleogene - Southwest Washington State
  14. Check the entries below carefully and cast your vote! PM me if you notice any errors with the entries. The poll ends September 9th. Be sure to vote in our other FOTM poll, HERE 1. Annularia radiata leaf whorls - Francis Creek Shale (Pennsylvanian) - Grundy Co., Illinois 2. Millipede - Francis Creek Shale (Pennsylvanian) - Grundy Co., Illinois 3. Ophiura sp. brittlestar arm segment - Cretaceous, Del Rio Formation - Travis County, Central Texas 4. Shimanskya postremus cephalopo
  15. Again, here is another invertebrate I have not been able to identify. Either way, my original guess was a trilobite pygidium, until I reviewed the fossil under different lighting, and then saw that it matched no known trilobites from this formation. So I am at a loss here. It is Pridoli, Silurian. For anyone who is interested, this came from a recent excursion to the Leighton Formation. It was found in a layer that contained only Chonetes bastini brachiopods and a few ostracods - with some possible fish bits. In the pictures below, the fossil is shown und
  16. The winner of the July 2021 IPFOTM goes to... Architarbus rotundatus spider - Pennsylvanian, Francis Creek Shale - Mazon Creek, Morris, Illinois Congratulations to @flipper559 !!!
  17. Looking for help with this Early Ordovician (Floian) trilobite from the Powell Dolostone of Arkansas, USA. The specimens (GRAY FIGURE below) were identified by Taylor (1968) as cf. Lannacus nericiensis Wiman, but that species (now a species of Megalaspides) doesn't seem like a great match, as the author notes in the paper. In fact, I'm not sure that proper Megalaspides even lived in North America. Last week, an Arkansan found another asaphide specimen (MAIZE AND BLUE FIGURE below) in these same rocks, which may or may not be the same species as the specimens described by Taylor.
  18. Check the entries below carefully and cast your vote! PM me if you notice any errors with the entries. The poll ends August 9th. Be sure to vote in our other FOTM poll, HERE 1. Mucrospirifer thedfordensis brachiopod - Mid Devonian, Hungary Hollow Formation and Arkona Shale (350 Ma) - Rock Glen, Arkona, Ontario 2. Epihoplites compressus ammonite - Lower Cretaceous, Gault Clay. Albian Age - Cap Blanc Nez, France 3. Petrified wood, Family Lauraceae (laurel tree) - Late Cretaceous, Maastrichtian age, Dawson Formation (70-66 Ma) - A
  19. Here is a picture of a Bivalve imprint I found whilst in a Creek in Western Wake County. I was in the Triassic Basin and they have fossils dating back around 230 Ma ± 2 ma. It was part of the Carnian Stage of the Triassic part of the bigger Newark Supergroup. I presume it is a freshwater genus but I don't hear much about freshwater Bivalves when it comes to Triassic fossils.
  20. The winner of the June 2021 IPFOTM goes to... Craspedites mosquensis ammonite - Jurassic, Volgian (Tithonian), Craspedites nodiger ammonite zone - Samara Oblast, Kashpir, Russia Congratulations to @RuMert !!!
  21. The winner of the May 2021 IPFOTM goes to... Tumidocarcinus giganteus crab - mid-Miocene - Canterbury, New Zealand Congratulations to @mamlambo !!!
  22. The winner of the April 2021 IPFOTM goes to... Cricket (Superfamily Grylloidea) & Damselfly (Suborder Zygoptera) - Eocene, Green River Formation - Colorado Congratulations to @Crusty_Crab !!!
  23. The winner of the March 2021 IPFOTM goes to... Romaniceras mexicanum ammonite - Upper Cretaceous (Turonian) - Blue Hill Member, Carlile Shale - Sandoval Co., New Mexico Congratulations to @PFOOLEY !!!
  24. Check the entries below carefully and cast your vote! PM me if you notice any errors with the entries. The poll ends July 9th. Be sure to vote in our other FOTM poll, HERE 1. Eurypterus remipes sea Ssorpion - Silurian - New York 2. Crussoliceras divisum ammonite - Early Kimmeridgian, Late Jurassic - Upper Danube Valley, Baden-Wuerttemberg, Germany 3. Sinespinaspis markhami trilobite - Cotton Formation, Late Llandovery (early Silurian) - Cotton Hill Quarry, Forbes, NSW, Australia
  25. Check the entries below carefully and cast your vote! PM me if you notice any errors with the entries. The poll ends June 9th. Be sure to vote in our other FOTM poll, HERE 1. Echinocaris punctata phyllocarid (dual valves) - Middle Devonian, Moscow Formation, Hamilton Group - Deep Springs Road Quarry, Lebanon, New York 2. Mecaster lusitanicus echinoid - Tentúgal Fm, Cenomanian (C level) - Montemor-o-Velho, Coimbra, Portugal 3. Pedioceras sp, ammonite - Early Cretaceous, Paja Formation - Villa de Leyva, Colombia
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