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

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  1. Tidgy's Dad

    Adam's Early / Lower Devonian

    The Devonian period is known as "The Age of Fish", but could also be known as "The Age of Brachiopods." In the Early / Lower Devonian, brachiopods reached the height of their diversity towards its end in the Emsian. We see the ancestral groups occurring, lingulids, craniids, orthids, protorthids, pentamerids, rhynchonellids and strophomenids, as well as the later successful groups we have seen before such as atrypids, athyrids and orthotetids, plus the rise of spiriferids, spiriferinids and productids and the beginning of the terebratulids. By the end of the Devonian , several of these g
  2. Yesterday I stumbled across Poricy Park Fossil Beds, which led me here after digging, but I was fortunate to find some of my own first fossils, and was even gifted four large ones from a passerby who stopped to make sure we got something good out of the experience. All of the said fossils are aquatic molluscs (or maybe sponges? But they definitely look like bivalves). Here are the four gifts: Here is a shell fused with a rock, although quite well: Some sort of clam piece? Another of the same/similar build
  3. SilurianSalamander

    Conulariid?

    Found these at the Nike Missile site in Waukesha Wisconsin. I found a chunk of armored fish bone in the same area. This is an update on my last post with the moss cleared off more. Thanks!
  4. I’m looking for fossil collecting sites within 3 hours’ drive from Seattle to visit and do a little hobby collecting while I’m in WA for work. I’m most interested in fossil plants, mollusks, or arthropods. Can anyone give me recommendations of where to go?
  5. Decalcified specimen from the Upper Ordovician of Italy. Scale bar: 5mm. It's possible to define at least the Order of this Mollusca, or it's pretentious to think so? It might belong to Gastropoda, Nautiloidea (i.e. Tarphycerida...),...? The attached image is formed by three pictures, the two on the left show the external mould, while the one on the right shows the internal mould.
  6. Marco90

    Ceratites laevigatus

    From the album: My collection in progress

    Ceratites laevigatus Philippi 1901 Location: Héming, Grand East, France Age: 242 - 237 Mya (Ladinian, Middle Triassic) Measurements: 11,4 cm (diameter) Kingdom: Animalia Phylum: Mollusca Subphylum: Conchifera Class: Cephalopoda Subclass: Ammonoidea Order: Ceratitida Family: Ceratitidae Are visible the peculiar smooth living chamber and the ceratitic suture pattern.
  7. Marco90

    Parkinsonia pachypleura

    From the album: My collection in progress

    Parkinsonia pachypleura Buckman 1925 Location: Saint-Benin-d'Azy, Bourgone-Franche-Comté, France Age: 168 - 166 Mya (Batonian, Middle Jurassic) Measurements: 4,2 cm (diameter) Kingdom: Animalia Phylum: Mollusca Subphylum: Conchifera Class: Cephalopoda Subclass: Ammonoidea Order: Ammonitida Suborder: Ammonitina Family: Parkinsoniidae
  8. Marco90

    Myophorella clavellata

    From the album: My collection in progress

    Myophorella clavellata Parkinson, 1811 Location: Villers-sur-Mer, Normandy, France Age: 166-163 Mya (Callovian, Middle Jurassic) Measurements: 2,8x1,7 cm Kingdom: Animalia Phylum: Mollusca Subphylum: Conchifera Class: Bivalvia Subclass: Palaeoheterodonta Order: Trigoniida Family: Trigoniidae
  9. Marco90

    Gryphaea dilatata

    From the album: My collection in progress

    Gryphaea dilatata Sowerby, 1818 Location: Villers-sur-Mer, Normandy, France Age: 163-157 Mya (Oxfordian, Upper Jurassic) Measurements: 7x7x7 cm Kingdom: Animalia Phylum: Mollusca Subphylum: Conchifera Class: Bivalvia Subclass: Pteriomorpha Order: Ostreida Family: Gryphaeidae
  10. Marco90

    Cleoniceras sp.

    From the album: My collection in progress

    Cleoniceras sp. Parona & Bonnarelli 1895 Location: Atsimo-Andrefana, Madagascar Age: 157 - 155 Mya (Oxfordian, Upper Jurassic) Measurements: 4,5 cm (diameter) Kingdom: Animalia Phylum: Mollusca Subphylum: Conchifera Class: Cephalopoda Subclass: Ammonoidea Order: Ammonitida Suborder: Ammonitina Family: Hoplitidae The ammonite is iridescent. In some parts is visible the elaborate ammonitic suture pattern.
  11. Marco90

    Manticoceras sinuosum

    From the album: My collection in progress

    Manticoceras sinuosum Hall 1843 Location: Erfoud, Morocco Age: 383 - 359 Mya (Upper Devonian) Measurements: 7,2 cm (diameter) Kingdom: Animalia Phylum: Mollusca Subphylum: Conchifera Class: Cephalopoda Subclass: Ammonoidea Order: Agoniatitida Suborder: Gephuroceratina Family: Gephuroceratidae
  12. Just a note that James Cullison's 1944 monograph on the rocks and fauna of the upper Lower Ordovician of Missouri and Arkansas is now freely available for download or perusal at https://archive.org/details/paper-cullison-1944-the-stratigraphy-of-some-lower-ordovician-formations-of-the This publication has always been devilishly tough to get a hold of. A nice systematic paleontology section deals with the many gastropods and other mollusks as well as the less diverse brachiopods, trilobites, and sponges. The monograph covers the following formations as currently accepted in Missour
  13. Wentletrapper

    Florida Shell ID Help

    Hello All, A friend of mine recently sent me some fossils he found near his home in Florida. It was suggested to us that they were from the Tamiami Formation, from the Pinecrest Beds. I’m relatively new to the paleontology of Florida so I have no idea if this is correct. I’m hoping that the community might be able to help identify some fossils. I apologize in advance for the quality of some of these photos. Because of the coloration, getting clear shots was sometimes difficult. I’d be truly appreciative if, along with the name of the fossil, you could include the citation from wher
  14. Hi, I am in search of Plate 8 from the following paper. Yes, the paper is published online at Biodiversity Heritage Library, but both Plate 8 and its accompanying "Explanation" (i.e., captions) page are unfortunately missing from the online edition. Please post a scan if you have easy access to Plate 8 from this paper, thanks. Driscoll, E. G. 1965. Dimyarian Pelecypods of the Mississippian Marshall Sandstone of Michigan. Palaeontographica Americana, No. 35.
  15. 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
  16. 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?
  17. Mr.Baker

    Fossil

    Does anyone know if it’s possible for the meat; the edible part, of an oyster to be fossilised?
  18. 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
  19. 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:
  20. 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
  21. 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
  22. 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
  23. 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
  24. 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
  25. 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
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