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L.S., Pecopterid fossils from the Piesberg (Lower Saxony, DEU) are notoriously difficult to ID because the preservation does usually not show the venation (e.g., Josten 1991; PDFs of text and atlas volume). As a group, the pecopterids have also undergone quite substantial taxonomical revisions in the last few years based on material from other localities; not in the least from Mazon Creek (Illinois, USA). This makes identification of my Piesberg-pecopteris a rather daunting endeavour. Perhaps someone on TFF who has experience with the Mazon Creek pecopterids and most current nomenclatural changes would be willing to take a stab at them for me? Images can be enlarged by clicking on them. If photos of specific details are required, let me know and I'll do my best to provide them (but note that venation is often simply not preserved very well). Thanks in advance for any ID suggestions or tips you can provide. Kind regards, Tim Specimens TKTW0048 (left; "Spiropteris sp.") and TKTW0049 (right) Specimen TKTW0542 Specimen TKTW0651 - I'm not even sure this is a pecopterid... Specimen TKTW0826 (left) and TKTW0827 (right) Specimen TKTW1004 Specimen TKTW1078 (left), TKTW1079 (middle) and TKTW1082 (right) - all from same slab of rock (related?) Specimen TKTW1099 - "Spiropteris sp." but what kind of pecopterid is in the foreground? Specimen TKTW1099 - note fertile pinna on the right
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The first Palaeozoic spider (order Araneae) from Germany
paleoflor posted a topic in Partners in Paleontology - Member Contributions to Science
L.S., It has been almost four years since I found an unidentified arachnid fossil in the Westphalian D (Late Carboniferous) of the Piesberg quarry near Osnabrück, Germany. The little critter received a warm welcome here on TFF, being awarded the July 2019 IPFOTM and later even given the honour of 2019 IPFOTY. At the time, I was happy to announce that the specimen had gone to dr. Jason Dunlop of the Museum für Naturkunde in Berlin (an expert on fossil arachnids) for further study. Today, I'm thrilled to give another update! Yesterday, the detailed study by dr. Dunlop culminated in a really nice open-access publication in PalZ, which can be downloaded HERE. The Piesberg-fossil turns out to be a new species and the first "true spider" from the Palaeozoic of Germany (so a spider from the order Araneae as opposed to early spider-lookalike arachnid groups such as the trigonotarbids or phalangiotarbids). The fossil (now a holotype) has been donated to the Museum für Naturkunde, where it is conserved under repository number MB.A. 4298. This has been a great experience, as I learned a great deal about arachnids and spiders and spinnerets along the way. Hope you'll enjoy reading dr. Dunlop's paper as much as I did! Kind regards, Tim Reconstruction of Arthrolycosa wolterbeeki Dunlop 2023 Reference: Dunlop, J.A. (2023) The first Palaeozoic spider (Arachnida: Araneae) from Germany, PalZ, published online 16 July 2023, https://doi.org/10.1007/s12542-023-00657-7- 22 replies
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Unknown "pellets" from Pennsylvanian of the Piesberg (Germany)
paleoflor posted a topic in Fossil ID
L.S., Hope someone might have an idea what these could be. This specimen comes from the Carboniferous (Westphalian D, Pennsylvanian) of the Piesberg quarry near Osnabrück, Germany. These little "pellets" are about 2-3 mm in length and preserved in illite (typical for the locality). I added one microscope image, but unfortunately they show little structure. Curious and looking forward to hear your thoughts! Kind regards, Tim- 8 replies
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From the album: Steinbruch Piesberg (Osnabrück, Germany)
© T.K.T. Wolterbeek
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