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  • Sawfish Rostral Tooth


    Images:

    PA Fossil Finder

    Taxonomy

    Ischyrhiza mira

    Kingdom: Animalia
    Phylum: Chordata
    Class: Chondrichthyes
    Order: Sclerorhynchiformes
    Family: Sclerorhynchidae
    Genus: Ischyrhiza
    Species: I. mira
    Author Citation Leidy 1856

    Geological Time Scale

    Eon: Phanerozoic
    Era: Mesozoic
    Period: Cretaceous
    Epoch: Late

    Stratigraphy

    Wenonah Formation

    Provenance

    Collector: Stephen Tapsak
    Date Collected: 04/16/2016
    Acquired by: Field Collection

    Dimensions

    Length: 13 mm
    Width: 5 mm
    Thickness: 3 mm

    Location

    Monmouth County
    New Jersey
    United States

    Comments

    A fine sawfish rostral tooth from Big Brook, New Jersey, and the first one I've found that was complete. Both views are of the same specimen, the smaller image is there to give a sense of how thin this tooth is - I'm really amazed at how long a fragile fossil like this one can survive in a creek without being broken to pieces.



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