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  • Productid Brachiopod


    DPS Ammonite


    Productid Brachiopod

    Kingdom: Animalia
    Phylum: Brachiopoda
    Class: Strophomenata
    Order: Productida
    Family: Productidae
    Genus: Bellaclathrus
    Species: Bellaclathrus spinosus
    Author Citation Winters 1963

    Geological Time Scale

    Eon: Phanerozoic
    Era: Paleozoic
    Period: Permian
    Sub Period: None
    Epoch: Cisuralian
    International Age: Kungarian


    Schnebly Hill Formation


    Collector: DPS Ammonite
    Date Collected: 07/06/2019
    Acquired by: Field Collection


    Width: 1 "


    Forest Lakes, south of
    Gila County
    United States


    While removing an unknown sponge by acid dissolution from the Permian Fort Apache Member of the Schnebly Hill Formation from northern Gila County in Arizona I found several silicified brachiopods with spines. 

    Several Bellaclathrus spinosus brachiopods were present ranging from 0.75 to 1.5 inch across and had spines as long as 1 inch. 


    The pedicle valve of the brachiopod in the first and second photos is about 1 inch wide not including spines. This is the finest specimen with spines that I have found.


    The third photo shows the brachiopod attached to several others of the same species. 

    Fourth and fifth photos are from Winters 1963 reference below.

    Taxonomy per Fossilworks:




    Winters, Stephen S. 1963. Supai Formation (Permian) of eastern Arizona. Geological Society of America Memoir 89:1-99.

    User Feedback

    Exquisite specimen!  :wub:  Such delicate spines!



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    Wow, that’s a beauty!  Still on my “to do” list to collect some silicified material such as this and try acid prepping. Thanks for posting. 

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