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  1. I recently came across a cool-looking piece with three different shells close together in a matrix, but despite my attempt to Google some pointers while I was pondering if I wanted it or not, I'm simply not trained up enough to determine if fossils are real. There's some parts that some articles were talking about that make me think it could be real, and others that make me think not so much... I have a feeling the matrix maybe isn't the original, but I'm hoping perhaps the shells themselves are still fossilized? But I'm really not sure -- anyways, the pictures I took are below. I hope they gi
  2. A friend uncovered this oddball today in the Late Ordovician (Sandbian) of eastern Missouri, in the uppermost part of the Plattin Group (a Platteville equivalent) or possibly the lowermost part of the Decorah Group. He's been finding a lot of weird fossils in that zone, including articulated cyclocystoids, but this one I'm at a loss on. Too wobbly for an orthoconic cephalopod, too much space between calcite elements for a crinoid column. Given the size, is machaeridian a possibility? What other ideas should we be considering?
  3. Mr.Baker

    Fossil

    Does anyone know if it’s possible for the meat; the edible part, of an oyster to be fossilised?
  4. Came across this specimen on an Ohio Fossils group. It was apparently found in south-central Ohio (Serpent Mound area) in 1958. What’s bothering me is that it seems to be a marine pelecypod with aragonitic preservation. All of Ohio’s exposed rocks are either Paleozoic or Pleistocene, and with vanishingly few exceptions, Paleozoic aragonite is simply not preserved. I know there are mollusks in pleistocene marine concretions, notably from Newfoundland, but not in the sediments representing Pleistocene Ohio’s terrestrial&freshwater environments. This is a marine clam, and there was no marine
  5. ReptileTooth

    Ammonites Id

    Hi I've been gifted a plate with different ammonites in it. As it comes from a second hand store, there's no record for provenance,age and all other infos. I'd appreciate any help with the identification. Thanks Back of plate:
  6. 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 crimpe
  7. Below are some online PDF files of the now defunct, but still famous, the Leisey Shell Pit in southwest florida. Leisey Shell Pit 1A, University of Florida Vertebrate Fossil Locality HI007 https://www.floridamuseum.ufl.edu/florida-vertebrate-fossils/sites/leisey-shell-pit-1a/ https://www.floridamuseum.ufl.edu/100years/leisey-shell-pit-fossils/ Hulbert, Jr., R.C., Morgan, G.S. and Webb S.D., eds., 1995. Paleontology and Geology of the Leisey Shell Pits, Early Pleistocene of Florida. Bulletin Florida Museum of Natural History, 37 (Part I). ht
  8. I like geology better, so I like to run around my city On this mountain is a Taoist temple. Taoism is the traditional religion of China. But you see, the slope is very steep. This is the Taoist gate, but I'm not here to see it. On the mountain, have two Chinese characters:"道魂". It means the soul of Taois(Of course there are fossils in this big rock, haha). Running to the side of the mountain without temples, I found some mollusks, of course, many of whom I didn't know. I don't know what th
  9. doushantuo

    diplobelid taphonomy and ethology

    Predatory behaviour and taphonomy of a Jurassic belemnoid coleoid (Diplobelida, Cephalopoda) Dominique Jenny, Dirk Fuchs, Alexander I. Arkhipkin, Rolf B. Hauff, Barbara Fritschi & Christian Klug 1 pdf.pdf Nature,Scientific reports,9-2019
  10. doushantuo

    Tyrolian belemnite

    atractitoa3988d.pdf Nino Mariotti ,Johannes Pignatti Atractites Jeletzkyi,a new xiphoteuthidid coleoid from the Lower Lias of Tyrol,Austria Geol.Roman.v.32,1996 Locus typicus:Pfonsjoch holotype: five fragments,glued together telum reasonably complete @Heteromorph @FranzBernhard
  11. doushantuo

    The Jurassic of Europe

    PDF BIOSTRATIGRAPHIE DU JURASSIQUE OUEST-EUROPÉEN ET MÉDITERRANÉEN Zonations parallèles et distribution des invertébrés et microfossiles Elie CARIOU & Pierre HANTZPERGUE memoire 17 Elf exploration & Production @Coco @michele 1937 @fifbrindacier typologie:ouvrage synthetique,et:utile,probablement edit: pour probablement,lire: peut etre Useful stratigraphic information in this one edit 2: ca. 31 MB,alors:large
  12. doushantuo

    recent cephalopod life history

    s9.pdf Hatch-as-hatch-can: tricks of the trade in coleoid hatchlings (Mollusca: Cephalopoda) Sigurd von Boletzky N. Jb. Geol. Paläont. Abh. 266/1, 67–76/2012
  13. Help request! I am putting together a tool for judging rock age based on very crude, whole-rock, hand-sample observations of fossil faunas/floras -- the types of observations a child or beginner could successfully make. I view this as a complement to the very fine, species-level identifications commonly employed as index fossils for individual stages, biozones, etc. Attached is what I've got so far, but I can clearly use help with corals, mollusks, plants, vertebrates, ichnofossils, and the post-Paleozoic In the attached file, vibrant orange indicates times in earth history to com
  14. doushantuo

    paleozoic malacology

    DBNA Middle and Upper Devonian Cryptodonta (Bivalvia)from the Pelagic Hercynian Facies -Taxonomy, Stratigraphy, and Paleoecology Judith Nagel Inaugural dissertation,2006 ABOUT 5,8 MB the research areas on a Devonian geodynamic reconstruction :
  15. Weaverlagerstusacastlehaynecoleteinkernschweizerbartsclagers07.pdf Rarely seen coleoid phragmocone steinkerns form the Eocene Castle Hayne Limestone of Southeastern North Carolina Patricia Wever,Charles Ciampaglio,Richard Chandler Palaeontographica,Abt.A/279,Lfg 4-6/Stuttgart,may 2007
  16. doushantuo

    the young ones

    Pimpaounionidlarvontogenicedulcaquital2012.pdf Amer. Malac. Bull. 30(1): 73–84 (2012) 73 Comparative morphometry and morphology of glochidial shells of Amazonian Hyriidae (Mollusca: Bivalvia: Unionida) Daniel Mansur Pimpão, Maria Cristina Dreher Mansur, Paulo Eduardo Aydos Bergonci, and Colin Robert Beasley
  17. doushantuo

    squid pro, quondam

    Anatomy and evolution of the first Coleoidea in the Carboniferous. Klug C, Landman NH, Fuchs D, Mapes RH, Pohle A, Guériau P, Reguer S, Hoffmann R Communications Biology,2019 Nature,31 july,2019 edit:about 9 MB I should be shot for that title here @Heteromorph @BobWill
  18. Spoons

    Unknown Oyster, Madagascar

    Hey everyone! I recently acquired this oyster from Tulear province, Madagascar. The seller has listed it as Rastellum carinatum, but doing any research online, I’ve only found other sellers selling similar fossils. I did come across a Wikipedia article for Agerostrea sp. It appears to be the same shell, and it lists it as occurring in rocks that are Maastrichtian age from Madagascar. Are these the same species just under different names or are they separate? If so, what genus does my specimen belong too? Any response would be greatly appreciated from
  19. doushantuo

    correlation-reptiles cephalopods

    45437447.pdf Netherlands Journal of Geosciences — Geologie en Mijnbouw | 84 – 3 | 283 - 301 | 2005 Stratigraphic ranges of mosasaurs in Belgium and the Netherlands (Late Cretaceous) and cephalopod-based correlations with North America J.W.M. Jagt
  20. Utera

    Oyster?

    I am having so much trouble finding out what these are. I confident that they are some type of prehistoric oyster but I have yet to find out. Is there anyway some of you guys can help me? IMG_3374.HEIC
  21. Pinal Geology Museum

    Collection Available

    The Pinal Geology Museum (pinalgeologymuseum.org) in Coolidge Arizona has a fossil collection that it would like to donate to a college, university, or museum. There are over 1000 specimens, they are all cataloged and each one has an index card. Most of the samples are small just a few inches in size with a few larger ones. There are mainly brachiopods and corals, but I have not looked carefully at the collection which is in storage. This collection was mader by a collector over a 70 year time period and it was donated to our museum by his family when he passed away. The whole col
  22. Steve D.

    Rostroconchia or Brachiopod?

    Howdy! I have a neat puzzle for the experts today! I know that rostrochonchia are not super easy to find... so I submit the follow picture. Most of the "shelled" creatures I unearth are brachiopods; cincinnetina meeki, Lepidocyclus, Rafinesquina...etc... HOWEVER! this specimen is unique to my collection. Found in northern Cincinnati - Upper Ordovician - The pronounced ridges are different than anything else found. Posted to an Ohio Fossil group, someone with a keen eye made the possibility of Rostroconchia. From my understanding these are not found often. Looking for help in identification. I
  23. aangus

    Ammonite Fossil ID request

    Hello, I am a new user and I recently picked up this ammonite fossil at a local rock & fossil shop. I got it for $80, and it has not been worked on much, only one side has been mostly cleared of rock. I have tried to use various sources on the internet and galleries, but I am new to this and have not been able to identify this fossil myself. It is decently large, and about 8-9 inches across at its longest. There are lots of deep ridges in the shell, but each ridge as far as I can tell is uniform, with no protrusions. Unfortunately, I do not know the origin of this fossil, or the type of ro
  24. doushantuo

    no uncertain terms

    Spixianaplacopbe033_0171-0194.pdf Illustrated summary of chiton terminology (Mollusca, Polyplacophora) Enrico Schwabe SPIXIANA 33 2 171–194 München, November 2010 ISSN 0341–8391
  25. doushantuo

    taphonomy & methodology

    Disentangling the history of complex multi-phased shell beds based on the analysis of 3D point cloud data Mathias Harzhauser, Ana Djuricic,Oleg Mandic,Martin Zuschin,Peter Dorninger,Clemens Nothegger,Balázs Székelyb,Eetu Puttonen,Gábor Molnárb,Norbert Pfeifer Palaeogeography, Palaeoclimatology, Palaeoecology Volume 437, 1 November 2015, Pages 165-180 1-s2.0-S0031018215004149-main.pdf taxa concerned: Paroxystele amedei (Brongniart, 1823) r Superfamily: Neritoidea Rafinesque, 1815 Agapilia pachii c Nerita plutonis (Basterot, 1825) f Superfamily: Cerithoidea
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