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    Thalassina anomala, Herbst, 1804


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    Images:

    DanKurek
    • Given to me by a member of the Australian Fossil Club. Will add more information about the formation soon.

    Taxonomy

    Mud Lobster

    Kingdom: Animalia
    Phylum: Crustacea
    Class: Malacostraca
    Order: Decapoda
    Family: Thalassinidae
    Genus: Thalassina
    Species: T. anomala
    Author Citation Herbst, 1804

    Geological Time Scale

    Eon: Phanerozoic
    Era: Cenozoic
    Period: Quaternary
    Epoch: Pleistocene
    International Age: Holocene

    Stratigraphy

    Unknown

    Provenance

    Acquired by: Purchase/Trade

    Dimensions

    Blank: 65mm
    Width: 40mm
    Height: 23mm

    Location

    Gunn Point
    Darwin
    Northern Territory
    Australia

    Comments

    Given to me by a member of the Australian Fossil Club. Will add more information about the formation soon.

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    piranha

    Posted · Report

    Thalassina squamifera is a modern species.

     

    The fossil taxa according to Schweitzer et al. 2010:

     

    Thalassina Latreille, 1806

    Thalassina anomala (Herbst, 1804) (=T. antiqua Bell, 1844; Thalassina emeryi Bell, 1845)

    Thalassina grandidactylus Robineau-Desvoidy, 1849

     

    Schweitzer, C.E., Feldmann, R.M., Garassino, A., Karasawa, H., & Schweigert, G., 2010

    Systematic list of fossil decapod crustacean species.

    Crustaceana Monographs, 10:1-222

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    DanKurek

    Posted · Report

    4 hours ago, piranha said:

    Thalassina squamifera is a modern species.

     

    The fossil taxa according to Schweitzer et al. 2010:

     

    Thalassina Latreille, 1806

    Thalassina anomala (Herbst, 1804) (=T. antiqua Bell, 1844; Thalassina emeryi Bell, 1845)

    Thalassina grandidactylus Robineau-Desvoidy, 1849

     

    Schweitzer, C.E., Feldmann, R.M., Garassino, A., Karasawa, H., & Schweigert, G., 2010

    Systematic list of fossil decapod crustacean species.

    Crustaceana Monographs, 10:1-222

     

    You are correct. This species can still be found throughout Northern Australia. But this is fossil is Thalassina squamifera.

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    piranha

    Posted · Report

    12 hours ago, DanKurek said:

    You are correct. This species can still be found throughout Northern Australia.

    But this is fossil is Thalassina squamifera.

     

     

    There is earlier and recent literature that has included Thalassina squamifera as a valid fossil species.  However, I would trust the authors of the monograph as the absolute top fossil crustacean experts in the world.  Check your PM as I sent you the Schweitzer et al. 2010 monograph so you can independently verify all the valid fossil species of Thalassina.  Apparently, Thalassina grandidactylus is a Lower Cretaceous species from France.  By process of elimination it would seem that Thalassina anomala (Herbst, 1804) best fits your specimen.  You can contact Carrie Schweitzer or Rodney Feldmann for any possible updates on the taxonomy of Thalassina in the 8 years since the monograph was first published.  

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