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Showing results for tags 'Araneae'.
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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
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From the album: Steinbruch Piesberg (Osnabrück, Germany)
Arthrolycosa wolterbeeki Dunlop 2023, holotype© T.K.T. Wolterbeek
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- araneae
- arthrolycosa
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From the album: Steinbruch Piesberg (Osnabrück, Germany)
Arthrolycosa wolterbeeki Dunlop 2023, holotype© T.K.T. Wolterbeek
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- araneae
- arthrolycosa
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Dominican Amber (La Toca Fm. [Mamey Group], 20.43-13.65 Ma.)
Barrelcactusaddict posted a gallery image in Member Collections
![Dominican Amber (La Toca Fm. [Mamey Group], 20.43-13.65 Ma.)](//content.invisioncic.com/e327962/monthly_2022_04/small.20220420_212338_resized_resized(1).jpg.7743a4a2a0e1a834bfb134b1544c0aaf.jpg)
From the album: Fossil Amber and Copal: Worldwide Localities
La Toca Mine Cordillera Septentrional Santiago Province, Dominican Republic La Toca Fm. (Mamey Group) 20.43-13.65 Ma Specimen: 7.7g / 51x21x12mm Equipment: Samsung Galaxy S9 Plus BelOMO 10x Triplet Loupe Quantum 140lm LED Penlight 7.5W S11 Incandescent Light There are 9 complete and 2 incomplete Leptomyrmex, averaging 3.5mm in body length. Other prominent inclusions consist of a twig (7mm), spider (2mm), formicine ant (3mm), two muscoid flies (1.5mm), and two nematoceran flies (possible chironomid at 1mm, heavily decomposed mycetophilid at 3mm).© Kaegen Lau
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From the album: Fossil Amber and Copal: Worldwide Localities
La Toca Mine Cordillera Septentrional Santiago Province, Dominican Republic La Toca Fm. (Mamey Group) 20.43-13.65 Ma Specimen: 7.7g / 51x21x12mm Equipment: Samsung Galaxy S9 Plus BelOMO 10x Triplet Loupe Quantum 140lm LED Penlight Dorsal view, 3mm body length; same individual as seen in related images. Contained within same amber piece as contains the Leptomyrmex ants, spider, muscoid and nematoceran flies, twig, and enhydros.© Kaegen Lau
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From the album: Fossil Amber and Copal: Worldwide Localities
La Toca Mine Cordillera Septentrional Santiago Province, Dominican Republic La Toca Fm. (Mamey Group) 20.43-13.65 Ma Specimen: 7.7g / 51x21x12mm Equipment: Samsung Galaxy S9 Plus BelOMO 10x Triplet Loupe Quantum 140lm LED Penlight Lateral view, 3mm body length; same individual as seen in related images. Contained within same amber piece as contains the Leptomyrmex ants, spider, muscoid and nematoceran flies, twig, and enhydros.© Kaegen Lau
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From the album: Fossil Amber and Copal: Worldwide Localities
La Toca Mine Cordillera Septentrional Santiago Province, Dominican Republic La Toca Fm. (Mamey Group) 20.43-13.65 Ma Specimen: 7.7g / 51x21x12mm Equipment: Samsung Galaxy S9 Plus BelOMO 10x Triplet Loupe Quantum 140lm LED Penlight Ventral view of a 3mm long formicine ant; same individual as seen in related images. Unfortunately, the mandibles are partially obscured by a small bubble. Contained within same amber piece as contains the Leptomyrmex ants, spider, muscoid and nematoceran flies, twig, and enhydros.© Kaegen Lau
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From the album: Fossil Amber and Copal: Worldwide Localities
La Toca Mine Cordillera Septentrional Santiago Province, Dominican Republic La Toca Fm. (Mamey Group) 20.43-13.65 Ma Specimen: 7.7g / 51x21x12mm Equipment: Samsung Galaxy S9 Plus BelOMO 10x Triplet Loupe Quantum 140lm LED Penlight Dorsal view of spider, 2mm body length. Some of the enhydros have movable gas bubbles within their chambers. Contained within same amber piece as contains the Leptomyrmex ants, formicine ant, muscoid and nematoceran flies, twig, and enhydros.© Kaegen Lau
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From the album: Fossil Amber and Copal: Worldwide Localities
La Toca Mine Cordillera Septentrional Santiago Province, Dominican Republic La Toca Fm. (Mamey Group) 20.43-13.65 Ma Specimen: 7.7g / 51x21x12mm Equipment: Samsung Galaxy S9 Plus BelOMO 10x Triplet Loupe Quantum 140lm LED Penlight About 7mm long, this inclusion has a wood-like appearance, with interesting surface texture. The image does not fully capture the surface detail. A reddish partial abdomen and attached legs of some arthropod are present at the left end of the twig. Contained within same amber piece as contains the Leptomyrmex ants, formicine ant, spider, muscoid and nematoceran flies, and enhydros.© Kaegen Lau
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From the album: Fossil Amber and Copal: Worldwide Localities
La Toca Mine Cordillera Septentrional Santiago Province, Dominican Republic La Toca Fm. (Mamey Group) 20.43-13.65 Ma Specimen: 7.7g / 51x21x12mm Equipment: Samsung Galaxy S9 Plus BelOMO 10x Triplet Loupe Quantum 140lm LED Penlight Lateral view of nematoceran fly (?Chironomidae), 1mm body length. Contained within same amber piece as contains the Leptomyrmex ants, formicine ant, spider, muscoid flies, twig, and enhydros.© Kaegen Lau
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From the album: Fossil Amber and Copal: Worldwide Localities
La Toca Mine Cordillera Septentrional Santiago Province, Dominican Republic La Toca Fm. (Mamey Group) 20.43-13.65 Ma Specimen: 7.7g / 51x21x12mm Equipment: Samsung Galaxy S9 Plus BelOMO 10x Triplet Loupe Quantum 140lm LED Penlight Ventral view, 1.5mm body length; same individual as seen in related image. Contained within same amber piece as contains the Leptomyrmex ants, formicine ant, spider, nematoceran flies, twig, and enhydros.© Kaegen Lau
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From the album: Fossil Amber and Copal: Worldwide Localities
La Toca Mine Cordillera Septentrional Santiago Province, Dominican Republic La Toca Fm. (Mamey Group) 20.43-13.65 Ma Specimen: 7.7g / 51x21x12mm Equipment: Samsung Galaxy S9 Plus BelOMO 10x Triplet Loupe Quantum 140lm LED Penlight Lateral view, 1.5mm body length; same individual as seen in related image. Contained within same amber piece as contains the Leptomyrmex ants, formicine ant, spider, nematoceran flies, twig, and enhydros.© Kaegen Lau
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From the album: Spider Exuviae Inside Baltic Amber
Example of perfect spider Exuviae inside Baltic amber. Eocene Era.
![Dominican Amber (La Toca Fm. [Mamey Group], 20.43-13.65 Ma.)](http://content.invisioncic.com/e327962/monthly_2022_04/small.20220420_212338_resized_resized(1).jpg.7743a4a2a0e1a834bfb134b1544c0aaf.jpg)
