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  • Bdellacoma verruculosa Lehmann 1957




    Kingdom: Animalia
    Phylum: Echinodermata Klein 1754
    Class: Stenuroidea Spencer 1951
    Order: Incertae sedis
    Family: Bdellacomidae Spencer and Wright 1966
    Genus: Bdellacoma
    Species: Bdellacoma verruculosa
    Author Citation Lehmann 1957

    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: 9.5 cm


    Eschenbach-Bocksberg Quarry


    Originally described under the name Urasterella verruculosa Lehmann 1957.
    Taxonomy from Fossilworks.org.

    Description from Südkamp 2017, p. 130: " The five, ribbon-like, flattened long arms join at the mouth frame; there is no interbrachial disc. The mouth frame is built as a ring of robust plates. The plates of the dorsal surface (radials,, a primary circlet and the large madreporite) are difficult to determine with certainity. Pedicellariae are irregularly arranged on the dorsal surface and as an organized fringe by the spacing of the adambulacrals. The pedicellariae are rounded triangular in outline. The ambulacrals are flat plates with a T-shaped ridge. Their arrangement across the arm midline is neither strictly paired nor alternate."

    Identified by oilshale using Südkamp 2017.

    Lehmann. W. M. (1957) Die Asterozoen in den Dachschiefern des rheinischen Unterdevons. Abhandlungen des Hessischen Landesamtes für Bodenforschung 21:1-160.
    Hotchkiss, Frederick & Glass, A.. (2010) Bdellacoma in the Hunsrück Slate (Lower Devonian): Reidentification of Urasterella verruculosa (Asteroidea, Bdellacomidae). Echinoderms: Durham - Proceedings of the 12th International Echinoderm Conference. 15-21. 10.1201/9780203869543-c3. 
    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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