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  1. Hoping for confirmation and/or species identification. Thanks in advance. Not sure of much anymore with all the recent changes. Annularia inflata? Alethopteris serlii? Calamites cistii? Pecopteris? Crenulopteris? species? Pecopteris? Crenulopteris? species?
  2. paleoflor

    Alethopteris sp.

    From the album: Steinbruch Piesberg (Osnabrück, Germany)

    © T.K.T. Wolterbeek

  3. paleoflor

    Alethopteris sp.

    From the album: Steinbruch Piesberg (Osnabrück, Germany)

    © T.K.T. Wolterbeek

  4. Strepsodus

    Alethopteris sp?

    I recently obtained this plant fossil in a trade. It comes from the Kent coal measures (UK), upper Carboniferous. I suspect it is Alethopteris sp, though the pinnules are smaller than any species of Alethopteris I can find. Any ideas what it may be? Thanks, Daniel
  5. jonnyquest

    Carboniferous Terrificous

    Here are some fossils I found in the town of St.clair in Schuylkill county , Pennsylvania. Llewellyn formation. 300 Mya. preserved in black shale.
  6. RaideReX

    Plant Fossil: Alethopteris Ferns?

    Good day, I'm looking at this fossil fern plate from the Llewellyn Formation in St. Clair Pennsylvania. I suspect that these are Alethopteris ferns. I'd like some help to verify their species name. Age: Pennsylvanian Formation: Llewellyn Location: Near St. Clair, Pennsylvania
  7. hitekmastr

    Alethopteris

    From the album: Carboniferous Plant Fossils in My Collection

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

  8. From the album: Carboniferous Plant Fossils in My Collection

    This Trigonocarpus fossil from St. Clair is an exceedingly rare pairing that includes the compression (fossil) and impression (cast) in matching pieces. If you look very closely you can see there is a short stem connecting the seed to the Alethopteris stem. Finding these connected is VERY rare. Also, if you look closely you can see some sort of structure revealed in the very center of the seed.
  9. From the album: MY FOSSIL Collection - Dpaul7

    Ptychocarpus unitus, with partial Alethopteris Upper Sharp Mountain Mbr-Pottsville Formation of Pennsylvania Pennsylvanian Period (323.2 million years ago to 298.9 million years ago) This Ptychocarpus unitus measures 2" long and is on a matrix measuring 1 3/4" by 3 1/4". There's a nice partial Alethopteris on the reverse side. Alethopteris is a prehistoric plant genus of fossil Pteridospermatophyta (seed ferns) that existed in the Carboniferous period (around 360 to 300 million years ago). It is in the family Alethopteridaceae. Kingdom:
  10. From the album: MY FOSSIL Collection - Dpaul7

    Ptychocarpus unitus, with partial Alethopteris Upper Sharp Mountain Mbr-Pottsville Formation of Pennsylvania Pennsylvanian Period (323.2 million years ago to 298.9 million years ago) This Ptychocarpus unitus measures 2" long and is on a matrix measuring 1 3/4" by 3 1/4". There's a nice partial Alethopteris on the reverse side. Alethopteris is a prehistoric plant genus of fossil Pteridospermatophyta (seed ferns) that existed in the Carboniferous period (around 360 to 300 million years ago). It is in the family Alethopteridaceae. Kingdom:
  11. From the album: MY FOSSIL Collection - Dpaul7

    Ptychocarpus unitus, with partial Alethopteris Upper Sharp Mountain Mbr-Pottsville Formation of Pennsylvania Pennsylvanian Period (323.2 million years ago to 298.9 million years ago) This Ptychocarpus unitus measures 2" long and is on a matrix measuring 1 3/4" by 3 1/4". There's a nice partial Alethopteris on the reverse side. Alethopteris is a prehistoric plant genus of fossil Pteridospermatophyta (seed ferns) that existed in the Carboniferous period (around 360 to 300 million years ago). It is in the family Alethopteridaceae. Kingdom:
  12. From the album: MY FOSSIL Collection - Dpaul7

    Ptychocarpus unitus, with partial Alethopteris Upper Sharp Mountain Mbr-Pottsville Formation of Pennsylvania Pennsylvanian Period (323.2 million years ago to 298.9 million years ago) This Ptychocarpus unitus measures 2" long and is on a matrix measuring 1 3/4" by 3 1/4". There's a nice partial Alethopteris on the reverse side. Alethopteris is a prehistoric plant genus of fossil Pteridospermatophyta (seed ferns) that existed in the Carboniferous period (around 360 to 300 million years ago). It is in the family Alethopteridaceae. Kingdom:
  13. Bguild

    Alethopteris

    From the album: Cory's Lane, Rhode Island Fossils

    Small plate of Alethopteris. Found in 2017 at the Cory's Lane fossil locality, Rhode Island.
  14. Bguild

    Aletheopteris

    From the album: Cory's Lane, Rhode Island Fossils

    Another small plate of Alethopteris. Found in 2017 at the Cory's Lane fossil locality, Rhode Island.
  15. M.Mark

    Pecopteris or other tree fern?

    I received this relatively large fossil about 4 years ago as a Christmas present from a friend. All the information I have about this specimen is that "it comes from the Carboniferous", it was bought from a peddler at the local Christmas market without asking for the provenance. Now I am trying to definitively identify it. I compared it to all my fossil ferns and to many pics online, and some photos of Pecopteris polymorpha are particularly similar in shape. ^This is one of the images I found online. There is a surprising similarity even with the surrounding matr
  16. M.Mark

    Lepidodendron?

    I bought this specimen many years ago in a small museum in Austria. The fossil itself is a very fragile flat piece of coal, was collected locally and sold by the same paleontologist who works in the museum itself. I cleaned it by myself since it was not prepared and covered in soil fragments, the real shape of the fossil had remained hidden behind a black layer of dust. When purchasing, I was told that it probably was a bark fragment from Alethopteris, but looking at it now I have the heavy suspect that it is instead a small Lepidodendron branch (excluding all the surrounding undefined plant m
  17. Fossil seed ferns (Alethopteris sp.). 300 m.y.o. St. Clair, PA. 185mm. One of the coolest fossil hunting experiences I’ve had. The amount of detail preserved in these fossils is incredible—some appear as if the leaves had just fallen! Exploring this area was like being transported back in time. Looking at a fossil like the one pictured here, it is not difficult to imagine the ancient carboniferous swamp coming back to life. For me, fossils are all about stress relief; a sobering—yet comforting—reminder of how briefly we are here, and where our priorities should lie. When I feel o
  18. JohnBrewer

    Alethopteris sp.

    From the album: Plants

    Alethopteris sp., Carboniferous, Herault, France
  19. JohnBrewer

    Alethopteris sp.

    From the album: Plants

    Alethopteris sp. Carboniferous, Herault, France
  20. Dear all, On the website of the Université de Lille 1, you can obtain digital copies of dissertations free of charge. The database also includes older works, including what I think is a fantastic series on Carboniferous plants, named "Houillères du bassin du Nord et du Pas-de-Calais, I. Flore fossile". Below I've added direct links to the five volumes (dissertations) in the series, each dealing with a major group of "fern-like fronds". While some of the works are a bit dated, the plates are marvellous and the descriptions still rather useful. Perhaps some of you could be interested, hence the
  21. Fossil seed ferns (Alethopteris sp.). 300 m.y.o. St. Clair, PA. 185mm. One of the coolest fossil hunting experiences I’ve had. The amount of detail preserved in these fossils is incredible—some appear as if the leaves had just fallen! Exploring this area was like being transported back in time. Looking at a fossil like the one pictured here, it is not difficult to imagine the ancient carboniferous swamp coming back to life. For me, fossils are all about stress relief; a sobering—yet comforting—reminder of how briefly we are here, and where our priorities should lie. When I feel o
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