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Palaeoisopus problematicus (Broili, 1928)
Palaios = old. Isos = podus = with the same legs (isopod). Problema = problem. Palaeoisopus is the largest sea spider or the Hunsruck Slate. Body length is 40-142mm. The first limb span reaches up to 320mm
Hunsrück Slate 408–400 Mya old GERMANYywang21
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Jaekelaster petaliformis (Stürtz 1899)
Petalos = broad, flat; having the form of a petal, corresponding to the lance-shaped arms. The arm length is 55-135mm Extremely rare type of Stenuroids
Hunsrück Slate 2022 408–400 Mya oldywang21
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Nahecaris stuertzi (Jaekel, 1921)
Nahe = tributary of the Rhine River. Caris = shrimp The most common non-trilobite arthropod. The large bivalved shield covers the head, thorax, and anterior segments of the abdomen. Body length is up to 150-200mm. Once again, this specimen is a true museum quality one, so I am gonna give it 5-star rarity.
Hunsrück Slate 2018 408–400 Mya oldywang21
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Chotecops ferdinandi (Kayser, 1880)
Chot = spouse, consort A ventral specimen with incredible preservation of hypostome, appendages and setae. Chotecops are the most abundant arthropod of the Hunsruck Slate.
Hunsrück Slates 2019 408–400 Mya oldywang21