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By oilshale
“By the Wind Sailor”
Kingdom: Animalia
Eon: Phanerozoic
Era: Paleozoic
Period: Devonian
Sub Period: None
Epoch: Early
International Age: Emsian (early)
Hunsrück Slate Group
Kaub Formation
Acquired by: Purchase/Trade
Diameter: 8 cm
Eschenbach-Bocksberg Quarry
Bundenbach
Rhineland-Palatinate
Germany
Preserved from the ventral side.
Taxonomy from Yochelson et al. 1983.
Description from Südkamp 2017, p. 28:" The umbrella is disc-like or circular. The numerous tentacular appendages on the ventral side vary in lenght (and presumably function) and some appear to have been branched."
Reconstruction from Yochelson et al. 1983, p. 40:
References:
Yochelson, Ellis L. & Stürmer, Wilhelm & Stanley, George D. (1983). Plectodiscus discoideus (Rauff): a redescription of a chondrophorine from the Early Devonian Hunsrück Slate, West Germany. Paläontologische Zeitschrift. 57. 39-68. 10.1007/BF03031748.
Südkamp, W. (2017) Life in the Devonian. Identification book Hunsrück Slate fossils. Verlag Dr. Friedrich Pfeil, München.
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