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  • Eurypterid

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    IonRocks

    By IonRocks

    Taxonomy

    Sea Scorpion

    Kingdom: Animalia
    Phylum: Arthropoda
    Class: Merostomata
    Order: Eurypterida
    Family: Eurypteridae
    Genus: Eurypterus
    Species: Eurypterus tetragonophthalmus
    Author Citation Fischer, 1839

    Geological Time Scale

    Eon: Phanerozoic
    Era: Paleozoic
    Period: Silurian
    Sub Period: None
    Epoch: Ludlow
    International Age: Gorstian

    Stratigraphy

    Ustya Formation
    Bahovytsya Suite Member?

    Provenance

    Acquired by: Purchase/Trade

    Dimensions

    Length: 9 cm
    Width: 8 cm

    Location

    Velykozalissya
    Kamianets-Podilskyi Raion
    Khmelnytskyi Oblast
    Ukraine

    Comments

    The fossil itself measures about 8 cm long with a width of up to 4 cm (measurements listed in that section are of the rock itself.

    It is difficult to see but a small stub of an appendage is visible on the left side of the head.

    Go to fossils Other Arthropods

    User Feedback


    piranha

    The correct citation is:

    Eurypterus tetragonophthalmus Fischer 1839

     

    Fischer de Waldheim, G. 1839

    Notice un Crustacé fossile du genre Eurypterus de Podolie.

    Bulletin de la Société impériale des naturalistes de Moscou, 11:125-128

    LINK

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    IonRocks
    Just now, doushantuo said:

    Not Baltoeurypterus t.?

    I wasn't sure which to put, both were listed on my original identification

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    piranha

    Most papers in the last decade classify it as: Eurypterus tetragonophthalmus 

     

    Here is the most recent paper:

     

    Poschmann, M., Schoenemann, B., & McCoy, V.E. (2016) 

    Telltale eyes: the lateral visual systems of Rhenish Lower Devonian eurypterids (Arthropoda, Chelicerata) and their palaeobiological implications.

    Palaeontology, 59(2):295-304

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    doushantuo

    thanks,Piranha.Haven't got that one yet,but most of the others by Schoenemann.

    I just thought Baltoeurypterus was conspecific with E. Fischeri.,basing myself on Selden.

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    piranha

    Here you go:

     

    Quote:

    "Three Silurian representatives of the extinct Eurypterida were scored: Parastylonurus ornatus based on Waterston (1979), Mixopterus kiaeri based on Størmer (1934) and Eurypterus (formerly Baltoeurypterus) tetragonophthalmus based on Selden (1981)."

     

    Garwood, R.J., & Dunlop, J. (2014)

    Three-dimensional reconstruction and the phylogeny of extinct chelicerate orders.

    PeerJ, 2:e641 33 pp.

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