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By oilshale (edited)
Glass Sponge
Kingdom: Animalia
Eon: Phanerozoic
Era: Paleozoic
Period: Devonian
Sub Period: None
Epoch: Early
International Age: Early Emsian
Hunsrück Slate Group
Kaub Formation
Eschenbach Member
Acquired by: Purchase/Trade
Width: 9 cm
Bundenbach, "Grube Eschenbach"
Birkenfeld
Rhineland-Palatinate
Germany
Old name: Protospongia rhenana
Taxonomy from Fossilworks.org.
Description from Südkamp 2017, p. 25:"The large sponge has the outline of a vase, flask or bowl. It has mainly bundled diactines of the first order, which are woven into a rectangular mesh, but in contrary to Retifungus are not coiled (fibre optics network). In addition, the sponge has a lot of small triaxones of the second order lying in one plane, which radiate hexagonal (so called hexatines) or possibly also tetra radial (stauracts), because of the reduction of one of the axes of a triaxon."
References:
Schlüter, Clemens (1892) Protospongia rhenana. Zeitschrift der Deutschen Geologischen Gesellschaft Band 44 Heft 4 (1892), p. 615 - 618.
Mehl, D. (1996) Phylogenie und Evolutionsökologie der Hexactinellida (Porifera) im Paläozoikum. Geol. Paläont. Mitt. Insbruck. Sonderband 4, p. 1-55.
Bartels, C., Poschmann, M., Schindler, T. & Wuttke, M. (2002) Palaeontology and palaeoecology of the Kaub Formation (Lower Emsian, Lower Devonian) at Bundenbach (Hunsrück, SW Germany). Metalla (Bochum) 9.2, 2002, 105-122.
Südkamp, W. (2017) Life in the Devonian. Identification book Hunsrück Slate fossils. Verlag Dr. Friedrich Pfeil, München.
Edited by oilshale
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