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Showing results for tags 'hunsrück slate group'.
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This ichnofossil consists of an accumulation of tentaculites, probably of the genus Styliolina. Dr. M. Poschmann (General Directory of Cultural Heritage Rhineland-Palatinate in Koblenz) mentioned in a personal communication that accumulations of tentaculites / styliolites from the Hunsrück Slate are known, also in the State Collection in Mainz such pieces are found. Tentaculite accumulations can occur in quite different forms, among them those which are probably to be interpreted as coprolites due to their shape and rather irregular arrangement. Cylindrical assemblages of tentaculites / styliolines with orientation of the shells transverse to the long axis (as in this case) are also known and have been interpreted as agglutinated housing tubes of polychaetes worms. At the University of Bonn a diploma thesis on this topic has been done in 2010 - unfortunately no results have been published until today. Identified by Dr. M. Poschmann.
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- bundenbach
- devonian
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Eriniceaster tenuispinosus Lehmann 1957 is a homotypic synonym of Erinaceaster tenuispinosus Lehmann 1957 Taxonomy from GBIF.org From Südcamp 2017, p. 127: "The disc and arms on the dorsal surface are covered with a distended, granular, spine bearing skin. The spines are elongate and needle-like. The high domed body has been transformed into a fringe around the five lancet-shaped arms by later flattening. The mouth frame is large and stellate and the mouth-angle plates are triangular. The small madreporite has an oral position. The ambulacrals are either opposite or alternating and smooth L-shaped. Together with the sickle-shaped laterals they have the outline of a low W. They bear a row of nodules each bearing an elongate slender spine. The ambulacral groove is wide." Identified by oilshale using Südcamp 2017. References: Lehmann, W. M. (1957) Die Asterozoen in den Dachschiefern des rheinischen Unterdevons. Abhandlungen des Hessischen Landesamtes für Bodenforschung, 21, 160 p. Südkamp, W. (2017) Life in the Devonian. Identification book Hunsrück Slate fossils. Verlag Dr. Friedrich Pfeil. München 2017. ISBN978-3-89937-221-2.
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- 1
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- bundenbach
- emsian
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