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  • Cambrian Trilobite


    Images:

    FossilDAWG

    Taxonomy

    Kingdom: Animalia
    Phylum: Arthropoda
    Class: Trilobita
    Order: Ptychopariida
    Family: Elviniidae
    Genus: Elvinia
    Species: Elvinia roemeri
    Author Citation (Shumard, 1861)

    Geological Time Scale

    Eon: Phanerozoic
    Era: Paleozoic
    Period: Cambrian
    Sub Period: None
    Epoch: Late
    International Age: Furongian

    Stratigraphy

    McKay Group
    not divided into named Formations
    ML (Monograph Layer) of Chatterton & Ludvigsen, 1998

    Biostratigraphy

    Elvinia Zone
    Wujiajiania sutherlandi Subzone

    Provenance

    Collector: Donald Champagne
    Acquired by: Field Collection

    Dimensions

    Length: 33 mm
    Width: 28 mm

    Location

    Clay Creek (tributary of Tanglefoot Creek)
    Bull River Valley
    British Columbia
    Canada

    Comments

    Elvinia roemeri is an important zonal index species throughout Laurentia, but almost invariably it occurs as disarticulated sclerites.  Complete specimens are rare except in the McKay Group.   The species was originally described by Shumard (1861) as a species of Dikelocephalus.

     

    References:

    Chatterton, B.D.E., and Ludvigsen, R. 1998. Upper Steptoean (Upper Cambrian) trilobites of the McKay Group of southeastern British Columbia, Canada. Journal of Paleontology. The Paleontological Society Memoir, 49: 1-43.

     

    Chatterton, B.D.E. and Gibb, S. 2016.  Furongian (Upper Cambrian) trilobites from the McKay Group, Bull River Valler, near Cranbrook, southeastern British Columbia, Canada.  Paleontographica Canadiana 35: 1-275.

     

    Shumard, B. F 1861. The primordial zone of Texas with descriptions of new fossils. American Journal of Science, s. 2, 32:213-221.




    User Feedback


    I remember you finding this beauty on our trip in 2010! Still jealous about it! ;)

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