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  • Encrinaster roemeri Schoendorf 1910




    Brittle star

    Kingdom: Animalia
    Phylum: Echinodermata Klein 1754
    Class: Ophiuroidea Gray 1840
    Order: incertae sedis
    Family: Encrinasteridae Schuchert 1914
    Genus: Encrinaster
    Species: Encrinaster roemeri
    Author Citation Schoendorf 1910

    Geological Time Scale

    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: 5 cm


    Eschenbach-Bocksberg Quarry


    Taxonomy from Fossilworks.com.
    Alternative combination: Aspidosoma roemeri.

    Description from Südkamp, 2017, p. 134: "Encrinaster has many characteristics common with Euzonosoma. The differences are as follows. The elongated arms are strap-like, broadening distally until the disc edge and then tapering evenly as comparatively narrow arms to the arm tips. The interradial disc outline is convex to straight. The marginals are flat overlapping plates. The ambulacrals are more delicate, less rectangular than in Euzonosoma, and more sub-triangular in oral view."
    Identified by oilshale using Südkamp 2017.


    Schöndorf, F. (1910) Palaeozoische Seesterne Deutschlands. II. Die Aspidosomatiden des deutschen Unterdevon. Palaeontographica 57:1-63.
    Lehmann, W.M. (1957) Die Asterozoen in den Dachschiefern des rheinischen Unterdevons. Abhandlungen des Hessischen Landesamtes für Bodenforschung 21:1-160
    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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