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  • Palaeoisopus problematicus BROILI, 1928

    Images:

    oilshale

    By oilshale (edited)

    Taxonomy

    Sea spider

    Kingdom: Animalia
    Phylum: Arthropoda
    Class: Pycnogonida
    Order: Palaeopantopoda
    Family: Palaeoisopodidae
    Genus: Palaeoisopus
    Species: Palaeoisopus problematicus
    Author Citation BROILI, 1928

    Geological Time Scale

    Eon: Phanerozoic
    Era: Paleozoic
    Period: Devonian
    Sub Period: None
    Epoch: Early
    International Age: Emsian (early)

    Stratigraphy

    Hunsrück Slate Group
    Kaub Formation

    Provenance

    Acquired by: Purchase/Trade

    Dimensions

    Width: 8 cm

    Location

    Eschenbach-Bocksberg Quarry
    Bundenbach
    Rhineland-Palatinate
    Germany

    Comments

    Together with the brittle star  Furcaster decheni STUERTZ, 1886.

    Palaeoisopus was one of the largest predators of this fauna with a length of up to 25 cm and a maximum diameter of about 40 cm with spread legs. This is a (slightly disarticulated) juvenile specimen.

    Line drawing from Lehman 1959, p. 102:

    image.png.5c978c06347cbc60a98c2645847893d5.png

     

    References:
    Walter Maximilian Lehmann (1959) Neue Entdeckungen an Palaeoisopus. Paläontologische Zeitschrift 33: 1/2, 96-108. doi:10.1007/BF02988981
    Jan Bergström, Wilhelm Stürmer, Gerhard Winter (1980) Palaeoisopus, Palaeopantopus and Palaeothea, pycnogonid arthropods from the Lower Devonian Hunsrück Slate, West Germany. Paläontologische Zeitschrift 54: 11, 7-54. doi:10.1007/BF02985882

     

    Go to fossils Other Arthropods

    User Feedback


    dsalles

    Up to 40cm in diameter? That would be horror for people with arachnophobia.

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    oilshale

    To calm down for arachnophobians, sea spiders are only distant relatives of spiders :rolleyes:

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    Pbassham
    On 1/12/2020 at 7:46 AM, dsalles said:
    On 1/12/2020 at 3:18 PM, oilshale said:

    To calm down for arachnophobians, sea spiders are only distant relatives of spiders :rolleyes:

    I don’t care if it’s a starfish playing dress up! If it has 8 legs I’m staying the heck out of the water!

     

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