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Found 11 results

  1. I am attaching images of calamite and annularius specimens in my collection. Because their appears to be some debate among the experts on the relationships between calamites and sphenophyllum and asterophylloides, I am also including images of these specimens. I would welcome comments, suggestions or corrections from viewers. Further species identification would also be appreciated. Image 1 is of a Mesocalamite specimen that was among other Pennsylvanian fossils from Kentucky. Image 2 is of another Pennsylvanian Calamites from Kentucky. Image 3 is of a Pennsylvanian Calamites specimen from Alabama. Images 4 and 5 are Pennsylvanian Annularia leaf specimens from Mazon Creek IL. Image 6 is a Pennsylvanian Annularia radiata specimen from the Westwalian A & B, Lower Silesian in Poland. The contrast between the fossil and the underlying rock is so poor that I did alter the exposure settings in order to better view the fossil. Image 7 is of a Pennsylvanian Sphenophyllum specimen from Mazon Creek IL. Image 8 is of a Pennsylvanian Sphenophyllum cuneifolium specimen from the Westwalian A & B, Baszkirian, Lower Silesian in Poland. Again, because the contrast was so poor, I altered the exposure in an effort to obtain a better picture. Image 9 is of a Pennsylvanian Asterophylloides specimen from eastern Kentucky.
  2. A couple of fossils from the Early Cretaceous of Colombia originally classified as plants have been reidentified as juvenile sea turtle fossils: Fossil plant or turtle? (palaeo-electronica.org) Turns out a 100-million-year-old plant fossil was really a baby turtle (cosmosmagazine.com) Fossil first identified as plant is actually a baby turtle | Popular Science (popsci.com) The initial assignment of Sphenophyllum colombianum to Sphenophyllum by Huertas (2003) was perplexing because Sphenophyllum is known only from the late Devonian to Permian, but the reclassification of S. colombianum as a marine turtle removes the sole chronologically extraneous record of Sphenophyllum. Huertas, G. 2003. Flora Fósil de Villa de Leyva y sus alrededores. Camargo Editores, Chía, Colombia.
  3. an interesting story about the new interpretation of a possible plant remain as turtle It turns out, this fossil plant is really a fossil baby turtle - Field Museum the link to the original paper Fossil plant or turtle? (palaeo-electronica.org)
  4. historianmichael

    Sphenophyllum emarginatum

    From the album: Llewellyn Formation Plants of Pennsylvania

    Sphenophyllum emarginatum Late Pennsylvanian Llewellyn Formation Schuylkill Co., PA
  5. historianmichael

    Sphenophyllum longifolium

    From the album: Llewellyn Formation Plants of Pennsylvania

    Sphenophyllum longifolium Late Pennsylvanian Llewellyn Formation Schuylkill Co., PA
  6. historianmichael

    Sphenophyllum emarginatum

    From the album: Llewellyn Formation Plants of Pennsylvania

    Sphenophyllum emarginatum and Neuropteris ovata Late Pennsylvanian Llewellyn Formation St. Clair, PA
  7. historianmichael

    Sphenophyllum emarginatum

    From the album: Llewellyn Formation Plants of Pennsylvania

    Sphenophyllum emarginatum and Alethopteris serlii Late Pennsylvanian Llewellyn Formation St. Clair, PA
  8. hitekmastr

    Sphenophyllum_Pennsylvanian_St Clair

    From the album: Carboniferous Plant Fossils in My Collection

    © Copyright (c) 2019 by Michael Tomczyk. All rights reserved.

  9. hitekmastr

    Sphenophyllum_Pennsylvanian_St Clair

    From the album: Carboniferous Plant Fossils in My Collection

    © Copyright (c) 2019 by Michael Tomczyk. All rights reserved.

  10. Jeffrey P

    Sphenophyllum from Carbondale, PA.

    From the album: Carboniferous from PA.

    Sphenophyllum emergenatum Pennsylvanian Llewellyn Formation Carbondale, PA.
  11. AHoffman

    Sphenophyllum Leaf Whorl

    From the album: Fowler Park - Vigo County, IN

    Form Species - Sphenophyllum emarginatum Shelburn Formation - Middle Pennsylvanian Chieftain Mine (Fowler Park) - Vigo County, IN Length: 25mm

    © Andrew Hoffman

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